W-RE high-strength heat-resisting aluminium alloy material and preparation method thereof
An aluminum alloy material and heat-resistant technology, which is applied in the field of aluminum alloy materials of micro-alloying elements and rare earth elements and its preparation, can solve the problems of poor casting performance, extensive melt treatment process, and low high-temperature strength
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Embodiment 1
[0107] Example 1: Cu-1.0%, characteristic microalloying element-W, basic microalloying rare earth element-La
[0108] (1) Weigh the various alloying elements required according to the ingredient calculation table, as follows.
[0109]
[0110] (2) Add an appropriate amount of aluminum ingots to the melting furnace, heat it to melt it completely and keep it warm at 700-800°C; in order to prevent the melt from inhaling too much air, the melting process should be as short as possible in a closed environment Finish.
[0111] (3) Then add Al-Mn, Al-Ti, Al-W, Al-Zr intermediate alloy or mixed metal additives (including salt compounds) according to the formula ratio, and then add Cu pure metal and Al-Cd intermediate Alloy or mixed metal additives, then add B and rare earth element La, and stir evenly.
[0112] Mixed metal additives refer to cake-shaped or massive non-sintered powder metallurgy products for adding and adjusting alloy components, including manganese, copper, zirco...
Embodiment 2
[0118] Example 2: Cu-4.2%, characteristic microalloying element-W, basic microalloying rare earth element-La, Ce mixed rare earth
[0119] (1) Weigh the various alloying elements required according to the ingredient calculation table, as follows.
[0120]
[0121] (2) Add an appropriate amount of aluminum ingots to the melting furnace, heat it to melt it completely and keep it warm at 700-800°C; in order to prevent the melt from inhaling too much air, the melting process should be as short as possible in a closed environment Finish.
[0122] (3) Then add Al-Mn, Al-Ti, Al-W, Al-Zr intermediate alloy or mixed metal additives (including salt compounds) according to the formula ratio, and then add Cu pure metal and Al-Cd intermediate Alloy or mixed metal additives, then add B and rare earth elements La, Ce and mixed rare earth, and stir evenly.
[0123] Mixed metal additives refer to cake-shaped or massive non-sintered powder metallurgy products for adding and adjusting alloy c...
Embodiment 3
[0129] Example 3: Cu-6.01%, characteristic microalloying element-W, basic microalloying rare earth element-La, Ce, Pr mixed rare earth
[0130] (1) Weigh the various alloying elements required according to the ingredient calculation table, as follows.
[0131]
[0132] (2) Add an appropriate amount of aluminum ingots to the melting furnace, heat it to melt it completely and keep it warm at 700-800°C; in order to prevent the melt from inhaling too much air, the melting process should be as short as possible in a closed environment Finish.
[0133] (3) Then add Al-Mn, Al-Ti, Al-W, Al-Zr intermediate alloy or mixed metal additives (including salt compounds) according to the formula ratio, and then add Cu pure metal and Al-Cd intermediate Alloy or mixed metal additives, then add B and rare earth elements La, Ce, Pr mixed rare earth, and stir evenly.
[0134] Mixed metal additives refer to cake-shaped or massive non-sintered powder metallurgy products for adding and adjusting ...
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