Damage-resistant aluminum-lithium alloy and preparation method thereof
An aluminum-lithium alloy and damage-resistant technology, which is applied in the field of damage-resistant aluminum-lithium alloy and its preparation, can solve the problems that the alloy anisotropy cannot be greatly reduced, and achieve the effect of reducing anisotropy
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[0035] Table 1 shows the chemical composition and weight percentage examples of the novel damage-resistant aluminum-lithium alloy proposed by the present invention.
[0036] Table 1: Chemical composition and weight percentage of new super damage-resistant Al-Li alloy
[0037] Ingot number
[0038] see attached figure 1 As shown, the method steps of preparing the above-mentioned high-strength and tough aluminum-lithium alloy are:
[0039] (1) According to the chemical composition and weight percentage requirements of the alloy, 1 to 5 kinds of microalloying elements Mn, Zn, Mg, Ag and Zr can be added;
[0040] (2) Melting in a smelting furnace, the melting temperature is 680℃~780℃;
[0041] (3) It is equivalent to use different refining media or refining methods to refine the completely melted molten metal, and the metal temperature during refining is maintained within the range of 690°C to 750°C;
[0042] (4) After refining, it should be fully rested, and the rest...
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