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Low-cost high-room temperature plastic deformation magnesium alloy and preparation method thereof

A plastic deformation and magnesium alloy technology, which is applied in the field of metal materials and metal material processing, can solve the problems of demanding processing technology, high cost, and insufficient plasticity at room temperature, and achieve the goal of suppressing size, avoiding formation, and low raw material and processing costs Effect

Active Publication Date: 2019-01-11
北京中安璟润新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] A low-cost, high-room-temperature plastically deformable magnesium alloy is provided to solve the problems that the room-temperature plasticity of the existing high-room-temperature plasticity magnesium alloy is not high enough, or a large number of rare earth elements and high-priced alloy elements are used or the processing technology is harsh, resulting in high cost. and its preparation method

Method used

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  • Low-cost high-room temperature plastic deformation magnesium alloy and preparation method thereof
  • Low-cost high-room temperature plastic deformation magnesium alloy and preparation method thereof
  • Low-cost high-room temperature plastic deformation magnesium alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Design and select Mg-2.5Bi-2.5Sn-1Zr-0.4Ca-0.03Y (wt%) alloy composition ratio to form a magnesium alloy. The preparation method includes the following steps:

[0046] 1) Ingredients: Use pure Mg (99.8wt%) ingot, pure Bi (99wt%) block, pure Sn (99wt%) block, Mg-30Zr, Mg-20Ca and Mg-30Y master alloy as raw materials, after surface pretreatment (such as removal of dirt, scale, etc., the same as in the following examples), according to the above-mentioned target ingredients for batching; wherein, the mass ratio is Bi:Ca=6.25:1.

[0047] 2) Melting: Clean and preheat the crucible, put the magnesium ingot preheated to 200°C into the crucible of the melting furnace, set the furnace temperature to 720°C, and heat slowly at a heating rate of 25°C / min. After it melts, add the pure Bi block preheated to 50°C, pure Sn block, pure Zn block, and Mg-30Zr, Mg-20Ca master alloy and Mg-30Y master alloy preheated to 200°C into the magnesium melt in the liquid; raise the melting temp...

Embodiment 2

[0055] (1) Design and select the Mg-3Bi-3Sn-1Zr-0.5Ca-0.04Y (wt%) alloy composition ratio to form a magnesium alloy. The preparation method includes the following steps:

[0056] 1) Ingredients: Use pure Mg (99.8wt%) ingot, pure Bi (99wt%) block, pure Sn (99wt%) block, Mg-30Zr, Mg-20Ca and Mg-30Y master alloy as raw materials, after surface pretreatment (such as removal of dirt, scale, etc., the same as in the following examples), carry out batching according to the above-mentioned target components; mass ratio Bi:Ca=6:1.

[0057] 2) Melting: Clean and preheat the crucible, put the magnesium ingot preheated to 200°C into the crucible of the melting furnace, set the furnace temperature to 720°C, and heat slowly at a heating rate of 25°C / min. After it melts, add the pure Bi block preheated to 50°C, pure Sn block, pure Zn block, and Mg-30Zr, Mg-20Ca master alloy and Mg-30Y master alloy preheated to 200°C into the magnesium melt In liquid; raise the melting temperature to 750°C, ...

Embodiment 3

[0065] (1) Design and select the Mg-4Bi-4Sn-1Zr-0.6Ca-0.05Y (wt%) alloy composition ratio to form a magnesium alloy. The preparation method comprises the following steps:

[0066] 1) Ingredients: Use pure Mg (99.8wt%) ingot, pure Bi (99wt%) block, pure Sn (99wt%) block, Mg-30Zr, Mg-20Ca and Mg-30Y master alloy as raw materials, after surface pretreatment (As removal of dirt, scale etc., the following examples are the same), carry out batching according to the above-mentioned target components; mass ratio Bi:Ca=6.67:1.

[0067] 2) Melting: Clean and preheat the crucible, put the magnesium ingot preheated to 200°C into the crucible of the melting furnace, set the furnace temperature to 720°C, and heat slowly at a heating rate of 25°C / min. After it melts, add the pure Bi block preheated to 50°C, pure Sn block, pure Zn block, and Mg-30Zr, Mg-20Ca master alloy and Mg-30Y master alloy preheated to 200°C into the magnesium melt In liquid; raise the melting temperature to 750°C, keep...

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Abstract

The invention discloses a low-cost high-room temperature plastic deformation magnesium alloy and a preparation method thereof. The low-cost high-room temperature plastic deformation magnesium alloy isan Mg-Bi-Sn-Zr-Ca-Y alloy, and comprises the following chemical components by mass percent: 2 wt% to 5.0 wt% of Bi, 2 wt% to 5.0 wt% of Sn, 0.5 wt% to 1.2 wt% of Zr, 0.1 wt% to 0.8 wt% of Ca and 0.01wt% to 0.08 wt% of Y, and the balance being Mg and unavoidable impurities; and besides, the mass ratio of Bi to Ca is (6 to 7) to 1. According to the low-cost high-room temperature plastic deformation magnesium alloy and the preparation method thereof, the high-room temperature plastic deformation magnesium alloy can be obtained through an extremely simple processing means, the room-temperature extension rate reaches 35% or above, raw materials are cheap, processing cost is low, and mass production is each to achieve.

Description

technical field [0001] The invention relates to the field of metal materials and metal material processing, in particular to a low-cost high-room-temperature plastic deformation magnesium alloy and a preparation method thereof; the novel magnesium alloy can be used as a potential heat-resistant magnesium alloy and a biomedical magnesium alloy material. Background technique [0002] Energy, materials and information are the three pillars of the development of human society. With the increasingly severe situation of energy conservation and emission reduction, the development and utilization of resource-rich lightweight magnesium-based materials is an inevitable trend. The density of magnesium is about 1.74g / cm 3 , about 2 / 3 of aluminum alloy, 1 / 4 of steel, magnesium alloy has a series of advantages such as low density, high specific strength, high specific stiffness, good electromagnetic shielding effect, good damping and shock absorption, etc., known as "two "Eleventh Centur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/03C22C23/00C22F1/06C22C1/06
CPCC22C1/03C22C1/06C22C23/00C22F1/002C22F1/06
Inventor 孟帅举韩海生李其智张士良余晖闻晶晶范少达李永胜赵维民
Owner 北京中安璟润新材料技术有限公司
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