161results about How to "Overcoming cost barriers" patented technology

The invention discloses a high-strength heat-resisting aluminum alloy material and a production method thereof. The high-strength heat-resisting aluminum alloy material comprises the following components in percentage by weight: Cu: 1.0-10.0%; Mn: 0.05-1.5%; Cd: 0.01-0.5%; Ti: 0.01-0.5%; B: 0.01-0.2%; Zr: 0.01-1.0%; Be: 0.001-0.1%; RE: 0.05-5%; and the balance of Al. By adopting a high-quality melt, solid solution and phase diagram theory as the guide and preferring main alloy element formula of Cu, Mn and RE, the invention reduces an alloy quasi solid phase temperature range and solves the problems of large heat crack tendency in casting, low high-temperature strength of products, and the like; in addition, by preferring a multiple microalloying element formula with low cost, the invention provides a material condition for culture and grain refining of a high temperature phase and a strengthening phase in the solid solution; and moreover, by optimizing smelting and technology for heating processing, the invention fully plays the quantum sufficient culture and grain refining of the high temperature phase and the strengthening phase in the solid solution and finally produces the high-strength heat-resisting aluminum alloy material.

The invention discloses a Li-W-RE high-strength heat resistant aluminum alloy material modified with C. The alloy comprises the following components by weight percent: 1.0 to 10.0 percent of Cu, 0.05 to 1.5 percent of Mn, 0.01 to 0.5 percent of Cd, 0.01 to 0.5 percent of Ti, 0.0001 to 0.15 percent of C, 0.01 to 1.0 percent of Zr, 0.1 to 3.0 percent of Li, 0.01 to 1.0 percent of W, and 0.05 to 5 percent of rare earth element and the rest is Al. Through optimally choosing alloy host element Cu, Mn and RE prescription, the invention reduces alloy quasi-solid phase temperature range and solves the problems of large hot tear tend and low product high temperature strength in the casting process, guided by high quality melt, solid solution and phase diagram theory and taking a C element as modificator. The low cost multiple microalloyed element prescription is optimally choosen. Finally, a high-strength heat resistant aluminum alloy material is developed.

The invention discloses an Ag-RE high-strength high-toughness aluminum alloy material and a preparation method thereof. The alloy comprises the following components in percentage by weight: 1.0 to 10.0 percent of Cu, 0.05 to 1.5 percent of Mn, 0.01 to 0.5 percent of Cd, 0.01 to 0.5 percent of Ti, 0.01 to 0.2 percent of B, 0.01 to 1.0 percent of Zr, 0.01 to 1.0 percent of Ag, 0.05 to 5 percent of RE, and the balance of Al. High-quality melt, solid solution and a phase diagram theory are taken as guidance, and by using a preferable alloy main element formula of Cu, Mn and RE, the quasi solid temperature range of the alloy is reduced, and the problems of large hot tearing tendency in the casting process, low high-temperature strength of products and the like are solved; by using a preferable multielement microalloying element formula, material foundation conditions are created for the cultivation of a strengthening phase in the solid solution and grain refining effect; and the high-strength high-toughness aluminum alloy material is finally manufactured by optimizing smelting and thermal treatment process technology.

The invention discloses a high-strength heat-resistance aluminum alloy material and a preparation method thereof. The alloy material comprises the components in percentage by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.01-0.2% of B, 0.01-1.0% of Zr, 0.01-2.3% of Ni, 0.05-5% of RE and the balance of Al. By adopting high-quality melt and solid solution and phase diagram principle as guide and preferably choosing alloy main elements Cu, Mn and RE formula, the invention reduces alloy standard solid phase temperature range and solves the problems of large hot crack tendency, low high-temperature strength of products and the like in casting; in addition, by preferably choosing low-cost multielement microalloying element formula, the invention creates material condition for culturing and grain refining of medium-high and strengthening phases of the solid solution; and moreover, by optimizing the melting and heating processing technology, the invention realize sufficient culturing and full play of grain refining of the medium-high and strengthening phases of the solid solution so as to finally prepare the high-strength heat-resistance aluminum alloy material.

The invention discloses an aluminium alloy material with high strength and heat resistance and a preparation method thereof. The aluminium alloy material comprises the following ingredients in percentage by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.01-0.2% of B, 0.01-1.0% of Zr, 0.01-1.0% of Sc, 0.05-5% of RE and the balance of A1. In the invention, superior melt, solid solution and phase diagram theories are adopted as guidance. A formula of alloy main elements Cu, Mn and RE is preferably selected to reduce the temperature range of alloy quasi solid phasesand solve the problems of large heat crack tendency during casting, low product high-temperature strength and the like; and a formula of multielement micro-alloying elements is preferably selected, basic material conditions are provided for the culture and grain refinement action of strengthening phases in the solid solution, and the aluminium alloy material with high strength and heat resistanceis finally developed.

The invention discloses a high-strength heat-resistance aluminium alloy material and a preparation method thereof. The alloy material comprises the components in percentage by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.01-0.2% of B, 0.01-1.0% of Zr, 0.01-1.0% of Mo, 0.01-1.0% of W, 0.05-5% of RE and the balance of Al. By adopting high-quality melt and solid solution and phase diagram principle as guide and preferably choosing alloy main elements Cu, Mn and RE formula, the invention reduces alloy standard solid phase temperature range and solves the problems of large hot crack tendency, low high-temperature strength of products and the like in casting; in addition, by preferably choosing low-cost multielement microalloying element formula, the invention creates material condition for culturing and grain refining of medium-high and strengthening phases of the solid solution so as to finally prepare the high-strength heat-resistance aluminum alloy material.

The invention discloses a high-strength heat-resistance aluminum alloy material and a preparation method thereof. The material comprises the components in percentage by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.01-0.2% of B, 0.01-1.0% of Zr, 0.1-3.0% of Li, 0.01-1.0% of Nb, 0.05-5% of RE and the balance of Al. By adopting high-quality melt and solid solution and phase diagram principle as guide and preferably choosing alloy main elements Cu, Mn and RE formula, the invention reduces alloy standard solid phase temperature range and solves the problems of large hot crack tendency, low high-temperature strength of products and the like in casting; in addition, by preferably choosing low-cost multielement microalloying elemen formula, the invention creates material condition for culturing and grain refining of medium-high and strengthening phases of the solid solution so as to finally prepare the high-strength heat-resistance aluminum alloy material.

The invention discloses a Sc-Ni-RE high-strength heat-resistant aluminium alloy material and a preparation method thereof. The Sc-Ni-RE high-strength heat-resistant aluminium alloy material comprises the components in percent by weight: 1.0-10.0 percent of Cu, 0.05-1.5 percent of Mn, 0.01-0.5 percent of Cd, 0.01-0.5 percent of Ti, 0.01-0.2 percent of B, 0.01-1.0 percent of Zr, 0.01-1.0 percent ofNi, 0.01-1.0 percent of Sc, 0.05-5 percent of RE and the balance of Al. With an excellent-quality melt, a solid solution and a phase diagram theory as guidance and through preferably selecting alloy principal elements of Cu, Mn and RE, the invention reduces the alloy quasi solid phase temperature range and solves the problems of large heat cracking tendency, low high-temperature strength of the product, and the like during the casting; and preferably, a multielement microalloying element formula is selected, the material base condition is created for carrying out culturing and grain refining on a high-temperature phase and a strengthening phase in the solid solution, and a high-strength heat-resistant aluminium alloy material is finally developed.

The invention discloses an Ag-Mo-RE high-strength heat-resisting aluminum alloy material and a preparation method thereof. The Ag-Mo-RE high-strength heat-resisting aluminum alloy material comprises the following components in percent by weight: 1.0-10.0 percent of Cu, 0.05-1.5 percent of Mn, 0.01-0.5 percent of Cd, 0.01-0.5 percent of Ti, 0.01-0.2 percent of B, 0.01-1.0 percent of Zr, 0.01-1.0 percent of Mo, 0.01-1.0 percent of Ag, 0.05-5 percent of RE and the balance of Al. With an excellent-quality melt, a solid solution and a phase diagram theory as guidance and through preferably selecting alloy principal elements of Cu, Mn and RE, the invention reduces the alloy quasi solid phase temperature range and solves the problems of large heat cracking tendency, low high-temperature strength of the product, and the like during the casting; and preferably, a multielement microalloying element formula is selected, the material base condition is created for carrying out culturing and grain refining on a high-temperature phase and a strengthening phase in the solid solution, and a high-strength heat-resistant aluminium alloy material is finally developed.

The invention discloses a C-modified Li-Ni-RE high-strength heat-resisting aluminum alloy material and a preparation method thereof. The aluminum alloy material comprises the following components in percentage by weight: 1.0 to 10.0 percent of Cu, 0.05 to 1.5 percent of Mn, 0.01 to 0.5 percent of Cd, 0.01 to 0.5 percent of Ti, 0.0001 to 0.15 percent of C, 0.01 to 1.0 percent of Zr, 0.1 to 3.0 percent of Li, 0.01 to 1.0 percent of Ni, 0.05 to 5 percent of rare-earth element RE and the balance of Al. A high-quality melt, solid solution and a phase diagram theory are taken as guidance, a C element serves as a high-efficiency modifier and a preferable formula of main alloy elements, namely Cu, Mn and RE is adopted, so that the quasi-solid phase temperature range of the alloy is narrowed and problems such as high heat cracking tendency during casting, low strength of a product at high temperature and the like are solved; and a preferable formula of low-cost multiple microalloying elements is adopted, so that the high-strength heat-resisting aluminum alloy material is developed finally.

The invention discloses a Cr-Ni-RE high-strength heat-resistant aluminium alloy material with C as a modifier. The aluminium alloy material comprises the following components by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.0001-0.15% of C, 0.01-1.0% of Zr, 0.01-1.0% of Cr, 0.01-1.0% of Ni, 0.05-5% of RE and the balance Al. The invention finally develops the high-strength heat-resistant aluminium alloy material by taking the high-quality melt, solid solution and phase diagram theory as the guidance, taking C as the efficient modifier, giving preference to the main alloying elements Cu, Mn and RE as formulas, reducing the temperature range of the quasi-solid phase of the alloys, solving the problems of great hot cracking tendency, low high temperature strength of the products and the like during casting and giving preference to multiple microalloying elements with low cost as formulas.

The invention discloses a high-strength heat-resistant aluminium alloy material and a preparation method thereof. The aluminium alloy material comprises the following components by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.0001-0.15% of C, 0.01-1.0% of Zr, 0.001-0.1% of Be, 0.05-5% of RE and the balance Al. The invention finally develops the high-strength heat-resistant aluminium alloy material by taking the high-quality melt, solid solution and phase diagram theory as the guidance, taking C as the efficient modifier, giving preference to the main alloying elements Cu, Mn and RE as formulas, reducing the temperature range of the quasi-solid phase of the alloys, solving the problems of great hot cracking tendency, low high temperature strength of the products and the like during casting and giving preference to multiple microalloying elements with low cost as formulas to create basic material conditions for cultivation and grain refining functions ofthe high temperature phase and strengthening phase in the solid solution.

The invention discloses a high strength heat resistant aluminium alloy material and a preparation method thereof. The material comprises the following components in percent by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of T, 0.01-0.2% of B, 0.01-1.0% of Zr, 0.001-0.1% of Be, 0.01-1.0% of Mo, 0.05-5% of RE the balance of Al. The invention reduces alloy quasi solid phase temperature range by utilizing high quality melt, solid solution and phase diagram theory as guidance and preferably selecting formula of host elements of Cu, Mn and RE and solves the problems that hot tear crack tendency is high when in casting process and strength of products is low at high temperature; through preferably selecting a low cost multielement microalloyed element formula, the invention creates material foundation conditions for culture and grain refining of high temperature phase and strengthening phase in solid solution, and finally a high strength heat resistant aluminium alloy material is developed.

The invention discloses a Cr-Ho high-strength heat-resistant aluminum alloy material and a preparation method thereof. The alloy material comprises the following components in percentage by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.01-0.2% of B, 0.01-1.0% of Zr, 0.01-1.0% of Cr, 0.05-5% of Ho and the balance of Al. By taking high-quality melt, sosoloid and the phase diagram theory as the guidance, the invention reduces the quasi solid-phase temperature range of the alloy material and solves the problems of great thermal cracking tendency during casting, low high-temperature strength of products and the like by preferably selecting the formation of main alloy elements of Cu, Mn and RE. The preferable selection of the formulation of low-cost multielement microalloy elements creates material base conditions for breeding and grain-refining a high-temperature phase and a strengthening phase in the sosoloid, and a novel aluminum alloy material is finally developed.

The invention discloses an Ag-Cr-RE high-strength heat-resistant aluminium alloy material with C as a modifier and a preparation method thereof. The aluminium alloy material comprises the following components by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.0001-0.15% of C, 0.01-1.0% of Zr, 0.01-1.0% of Ag, 0.01-1.0% of Cr, 0.05-5% of RE and the balance Al. The invention finally develops the high-strength heat-resistant aluminium alloy material by taking the high-quality melt, solid solution and phase diagram theory as the guidance, giving preference to the main alloying elements Cu, Mn and RE as formulas, reducing the temperature range of the quasi-solid phase of the alloys, taking C as the efficient modifier, solving the problems of great hot cracking tendency, low high temperature strength of the products and the like during casting and giving preference to multiple microalloying elements as formulas.

The invention discloses a high-strength heat-resistant aluminium alloy material and a preparation method thereof. The aluminium alloy material comprises the following components by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.01-0.2% of B, 0.01-1.0% of Zr, 0.01-1.0% of Mo, 0.01-1.0% of Ni, 0.05-5% of RE and the balance Al. By taking high-quality melt, solid solution and phase diagram theory as guidance and optimizing the formulas of the major alloy elements Cu, Mn and RE, the invention narrows the quasi-solid phase temperature range of the alloys and solves the problems of great hot crack tendency during casting, low high temperature strength of the products and the like, and by optimizing the formulas of the low cost multiple micro alloying elements, the invention creates material base conditions for cultivation and grain refining of medium-high temperature phase and strengthening phase of the solid solution and finally develops the high-strength heat-resistant aluminium alloy material.

The invention discloses a high-strength heat-resisting aluminium alloy material and a preparation method thereof. The high-strength heat-resisting aluminium alloy material comprises the following components in percent by weight: 1.0-10.0 percent of Cu, 0.05-1.5 percent of Mn, 0.01-0.5 percent of Cd, 0.01-0.5 percent of Ti, 0.01-0.2 percent of B, 0.01-1.0 percent of Zr, 0.01-1.0 percent of W, 0.05-5 percent of RE and the balance of Al. By using high quality melt, solid solution and a phase diagram theory as guidance and the formula of optimally selecting main alloy elements of Cu, Mn and RE, the invention reduces the alloy quasi solid phase temperature range and solves the problems of large heat cracking tendency, low high-temperature strength of products and the like occurred during casting. A preferentially selected low-cost multiple microalloying element formula creates the material base condition for culture and grain refining of high temperature phase and strengthened phase in the solid solution. By optimizing melting and heat treating processes, the full development of enough culture and grain refining of the high temperature phase and strengthened phase in the solid solution can be realized, and the high-strength heat-resisting aluminium alloy material is finally developed.

The invention discloses a high-strength heat-resistant aluminum alloy material and a preparation method thereof. The high-strength heat-resistant aluminum alloy material comprises the following components in percentage by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.01-0.2% of B, 0.01-1.0% of Zr, 0.001-0.1% of Be, 0.01-3.0% of Li, 0.05-5% of RE and the balance of Al. With high-quality melt, sosoloid and the phase diagram theory as the guidance, the invention reduces the quasi solid-phase temperature range of the alloy and solves the problems of great thermal cracking tendency during casting, low high-temperature strength of products and the like by preferably selecting the formation of main alloy elements of Cu, Mn and RE. The preferable selection of the formulation of low-cost multielement microalloy elements creates material base conditions for breeding and grain-refining a high-temperature phase and a strengthening phase in the sosoloid, and a high-strength heat-resistant aluminum alloy material is finally developed.

The invention discloses an Ag-W-RE high-strength heat-resistant aluminium alloy material with C as a modifier and a preparation method thereof. The aluminium alloy material comprises the following components by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.0001-0.15% of C, 0.01-1.0% of Zr, 0.01-1.0% of Ag, 0.01-1.0% of W, 0.05-5% of RE and the balance Al. The invention finally develops the high-strength heat-resistant aluminium alloy material by taking the high-quality melt, solid solution and phase diagram theory as the guidance, giving preference to the main alloying elements Cu, Mn and RE as formulas, reducing the temperature range of the quasi-solid phase of the alloys, taking C as the efficient modifier, solving the problems of great hot cracking tendency, low high temperature strength of the products and the like during casting and giving preference to multiple microalloying elements as formulas.

The invention discloses a high-strength heat-resistant aluminum alloy material and a preparation method thereof. The high-strength heat-resistant aluminum alloy material comprises the following components in percentage by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.01-0.2% of B, 0.01-1.0% of Zr, 0.001-0.1% of Be, 0.01-1.0% of Co, 0.05-5% of RE and the balance of Al. With high-quality melt, sosoloid and the phase diagram theory as guidance, the invention reduces the quasi solid-phase temperature range of the alloy and solves the problems of great thermal cracking tendency during casting, low high-temperature strength of products and the like by preferably selecting the formation of main alloy elements of Cu, Mn and RE. The preferable selection of the formulation of low-cost multielement microalloy elements creates material base conditions for breeding and grain-refining a high-temperature phase and a strengthening phase in the sosoloid, and a high-strength heat-resistant aluminum alloy material is finally developed.

The invention discloses a high-strength heat-resistant aluminum alloy material and a preparation method thereof. The alloy material comprises the components in percentage by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.0001-0.15% of C, 0.01-1.0% of Zr, 0.01-1.0% of Sc, 0.05-5% of RE and the balance of Al. in the preparation method, under the guidance of a theory of high-quality melt, solid solutions and phase diagrams, by preferably selecting a prescription of alloy main elements of Cu, Mn and RE, the quasi solid-phase temperature range of alloy is reduced; byusing C as an efficient modifying agent, the problems of large tendency of heat tearing, low intensity of high temperature of products and the like during casting can be solved; by preferably selecting the prescription of multiple micro alloying elements, material basis conditions for cultivating and fine crystallization actions of strengthening phases in the solid solution can be created and thehigh-strength heat-resistant aluminum alloy material is finally developed.

The invention discloses a Be-Mo-RE high-strength heat-resistant aluminium alloy material with C as a modifier, comprising the following components in weight percent: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.0001-0.15% of C, 0.01-1.0% of Zr, 0.001-0.1% of Be, 0.01-1.0% of Mo, 0.05-5% of rare earth element (RE) and the balance of Al. The invention reduces alloy quasi solid phase temperature range by utilizing high quality melt, solid solution and phase diagram theory as guidance and a C element as a high efficiency modifier and preferably selecting formula of host elements of Cu, Mn and RE and solves the problems that hot rack tendency is high in casting process and product strength of products is low at high temperature; through preferably selecting a low cost multielement microalloyed element formula, a high strength heat resistant aluminium alloy material is finally developed.

The invention discloses a high-strength heat-resistant aluminium alloy material and a preparation method thereof. The aluminium alloy material comprises the following components by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.01-0.2% of B, 0.01-1.0% of Zr, 0.1-3.0% of Li, 0.01-1.0% of Ni, 0.05-5% of RE and the balance Al. By taking high-quality melt, solid solution and phase diagram theory as guidance and optimizing the formulas of the major alloy elements Cu, Mn and RE, the invention narrows the quasi-solid phase temperature range of the alloys and solves the problems of great hot crack tendency during casting, low high temperature strength of the products and the like, and by optimizing the formulas of the low cost multiple micro alloying elements, the invention creates material base conditions for cultivation and grain refining of medium-high temperature phase and strengthening phase of the solid solution and finally develops the high-strength heat-resistant aluminium alloy material.

The invention discloses a high-strength heat-resistant aluminium alloy material and a preparation method thereof. The aluminium alloy material comprises the following components by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.01-0.2% of B, 0.01-1.0% of Zr, 0.01-1.0% of Mo, 0.01-1.0% of Nb, 0.05-5% of RE and the balance Al. By taking high-quality melt, solid solution and phase diagram theory as guidance and optimizing the formulas of the major alloy elements Cu, Mn and RE, the invention narrows the quasi-solid phase temperature range of the alloys and solves the problems of great hot crack tendency during casting, low high temperature strength of the products and the like, and by optimizing the formulas of the low cost multiple micro alloying elements, the invention creates material base conditions for cultivation and grain refining of medium-high temperature phase and strengthening phase of the solid solution and finally develops the high-strength heat-resistant aluminium alloy material.

The invention discloses a Sc-Nb-RE high-strength heat resistant aluminum alloy material and a preparation method thereof. The material comprises the following components in percentage by weight: 1.0-10.0 percent of Cu, 0.05-1.5 percent of Mn, 0.01-0.5 percent of Cd, 0.01-0.5 percent of Ti, 0.01-0.2 percent of B, 0.01-1.0 percent of Zr, 0.01-1.0 percent of Nb, 0.01-1.0 percent of Sc, 0.05-5 percent of RE and the balance of Al. In the invention, high-quality melts, solid solutions and a phase diagram theory are used as a guide, and the alloy quasi solid-phase temperature range is reduced through optimizing the formulas of main alloy elements of Cu, Mn and RE so as to solve the problems of large heat tearing tendency, low product high-temperature strength, and the like during casting; and a multiple microalloying element formula is optimized, thus a material base condition is created for the culture and the grain refining of a high-temperature phase and a strengthening phase in solid solutions so as to finally develop the high-strength heat resistant aluminum alloy material.

The invention discloses a Mo-Ni-RE high-strength heat resistant aluminum alloy material modified with C. The alloy comprises the following components by weight percent: 1.0 to 10.0 percent of Cu, 0.05 to 1.5 percent of Mn, 0.01 to 0.5 percent of Cd, 0.01 to 0.5 percent of Ti, 0.0001 to 0.15 percent of C, 0.01 to 1.0 percent of Zr, 0.01 to 1.0 percent of Mo, 0.01 to 1.0 percent of Ni, and 0.05 to 5 percent of rare earth element and the rest is Al. Through optimally choosing alloy host element Cu, Mn and RE prescription, the invention reduces alloy quasi-solid phase temperature range and solves the problems of large hot tear tend and low product high temperature strength in the casting process, guided by high quality melt, solid solution and phase diagram theory and taking a C element as modificator. The low cost multiple microalloyed element prescription is optimally chosen. Finally, a high-strength heat resistant aluminum alloy material is developed.

The invention discloses a high-strength heat-resistance aluminum alloy material and a preparation method thereof. The alloy material comprises the components in percentage by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.01-0.2% of B, 0.01-1.0% of Zr, 0.01-1.0% of Mo, 0.05-5% of RE and the balance of Al. By adopting high-quality melt and solid solution and phase diagram principle as guide and preferably choosing alloy main elements Cu, Mn and RE formula, the invention reduces alloy standard solid phase temperature range and solves the problems of large hot crack tendency, low high-temperature strength of products and the like in casting; in addition, by preferably choosing low-cost multielement microalloying element formula, the invention creates material condition for culturing and grain refining of medium-high and strengthening phases of the solid solution; and moreover, by optimizing the melting and heating processing technology, the invention realizes sufficient culturing and full play of grain refining of the medium-high and strengthening phases of the solid solution so as to finally prepare the high-strength heat-resistance aluminum alloy material.

The invention discloses a C-modified Li-Nb-RE high-strength heat-resisting aluminum alloy material, which comprises the following components in percentage by weight: 1.0 to 10.0 percent of Cu, 0.05 to 1.5 percent of Mn, 0.01 to 0.5 percent of Cd, 0.01 to 0.5 percent of Ti, 0.0001 to 0.15 percent of C, 0.01 to 1.0 percent of Zr, 0.1 to 3.0 percent of Li, 0.01 to 1.0 percent of Nb, 0.05 to 5 percent of RE (rare earth element), and the balance of Al. A high-quality melt, solid solution and a phase diagraph theory are taken as guidance, a C element serves as a high-efficiency modifier and a preferable formula of principal alloy elements, namely Cu, Mn and RE is adopted, so that the quasi solid-phase temperature range of the alloy is narrowed and problems such as high heat cracking tendency during casting, low strength of a product at high temperature and the like are solved; and a preferable formula of low-cost multiple microalloying elements is adopted, so the high-strength high-resisting aluminum alloy material is developed finally.

The invention discloses a Cr-Sm high-strength heat resisting aluminum alloy material and a preparation method thereof. The alloying components in percentage by weight are as follows: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.01-0.2 % Of B, 0.01-1.0% of Zr, 0.01-1.0% of Cr, 0.05-5% of Sm and the balance Al. In the invention, high-quality fusant, a solid solution and a phase diagram theory are used as instruction, and the formula of the main alloying elements Cu, Mn and Sm is optimized, so that the quasi-solid phase temperature range of the alloy is reduced, and the problems of high thermal cracking inclination during casting, low high-temperature strength of the product and the like are solved; because the formula of low-cost multi-element microalloying elements is optimized, a material basis condition is created for culture of the high temperature phase and the strengthening phase in the solid solution and the grain refining effect; and finally a novel aluminum alloy material is developed by optimizing a smelting and heat treatment technology.

The invention discloses a C-modified Ag-Li-RE high-strength heat-resistant aluminum alloy material and a preparation method thereof. The C-modified Ag-Li-RE high-strength heat-resistant aluminum alloy material comprises the following components in percentage by weight: 1.0 to 10.0 percent of Cu, 0.05 to 1.5 percent of Mn, 0.01 to 0.5 percent of Cd, 0.01 to 0.5 percent of Ti, 0.0001 to 0.15 percent of C, 0.01 to 1.0 percent of Zr, 0.01 to 1.0 percent of Ag, 0.1 to 3.0 percent of Li, 0.05 to 5 percent of RE and the balance of Al. High-quality melt and solid solution and a phase diagram theory are taken as guidance, a preferable formula of principal alloy elements, namely Cu, Mn and RE is adopted, so that the temperature range of the quasi solid-phase of the alloy is reduced; a C element serves as a high-efficiency modifier, and problems such as high heat cracking tendency during casting, low strength of a product at high temperature and the like are solved; and a preferable formula of multiple microalloying element is adopted, so that the high-strength heat-resistant aluminum alloy material is developed finally.