Cr-Ho high-strength heat-resistant aluminum alloy material and preparation method thereof
An aluminum alloy material and heat-resistant technology, which is applied in the field of Cr-Ho high-strength heat-resistant aluminum alloy material and its preparation, can solve the problems of poor casting performance, low high-temperature strength of products, and reducing the quasi-solid phase temperature range of alloys, etc.
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Embodiment 1
[0104] Example 1: Cu-1.0%, characteristic microalloying element-Cr, basic microalloying rare earth element-Ho
[0105] (1) Weigh the various alloying elements required according to the ingredient calculation table, as follows.
[0106]
[0107] (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.
[0108] (3) Add Al-Mn, Al-Ti, Al-Cr, 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 Al-B and Al-Ho master alloys, and stir evenly.
[0109] Mixed metal additives refer to cake-shaped or massive non-sintered powder metallurgy products for adding and adjusting alloy components, including manganese, copper, zirconi...
Embodiment 2
[0115] Example 2: Cu-4.2%, characteristic microalloying element-Cr, basic microalloying rare earth element-Ho
[0116] (1) Weigh the various alloying elements required according to the ingredient calculation table, as follows.
[0117]
[0118] (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.
[0119] (3) Add Al-Mn, Al-Ti, Al-Cr, 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 Al-B and Al-Ho master alloys, and stir evenly.
[0120] Mixed metal additives refer to cake-shaped or massive non-sintered powder metallurgy products for adding and adjusting alloy components, including manganese, copper, zirconi...
Embodiment 3
[0126] Example 3: Cu-6.01%, characteristic microalloying element-Cr, basic microalloying rare earth element-Ho
[0127] (1) Weigh the various alloying elements required according to the ingredient calculation table, as follows.
[0128]
[0129] (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.
[0130] (3) Add Al-Mn, Al-Ti, Al-Cr, 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 Al-B and Al-Ho master alloys, and stir evenly.
[0131] Mixed metal additives refer to cake-shaped or massive non-sintered powder metallurgy products for adding and adjusting alloy components, including manganese, copper, zircon...
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