High-strength Mg-Li-Al-Y-Ca alloy and preparation method thereof
A high-strength, calcium alloy technology, applied in the field of metal materials, can solve the problems of low strength and low-density plasticity, and achieve the effects of improving mechanical properties, easy industrial production, and simple processing technology.
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[0027] Example 1: Preparation of high-strength magnesium-lithium-aluminum-yttrium-calcium alloy.
[0028] The high-strength magnesium-lithium-aluminum-yttrium-calcium alloy of this embodiment contains the following components by weight percentage: 92.49wt% Mg, 4wt% Li, 2wt% Al, 1wt% Y, 0.5wt% Ca, a total of 0.01wt% of impurity elements Si, Fe, Cu and Ni (wt% refers to the percentage of the weight of each component to the total weight of the target alloy, the total weight is Mg, Li, Al and various intermediate The total weight of the alloy).
[0029] The preparation method of the high-strength magnesium-lithium-aluminum-yttrium-calcium alloy is as follows:
[0030] Melting process: The entire smelting process is in SF 6 / CO 2 Under mixed gas protection conditions. Weigh pure Mg, pure Al, and Mg-Y master alloys (Mg-25wt% Y alloy, also known as Mg-Y25 alloy or Mg-25Y alloy) according to the formula quantity, that is, the weight of Y accounts for the total weight of Mg-25wt% Y alloy T...
Example Embodiment
[0034] Example 2: Preparation of high-strength magnesium-lithium-aluminum-yttrium-calcium alloy.
[0035] The high-strength magnesium-lithium-aluminum-yttrium-calcium alloy of this embodiment contains the following components in percentage by weight: 84.985wt% Mg, 8wt% Li, 4wt% Al, 2wt% Y, 1wt% Ca, a total of 0.015wt% of impurity elements Si, Fe, Cu and Ni (wt% refers to the percentage of the weight of each component to the total weight of the target alloy, the total weight is Mg, Li, Al and various intermediate alloys Total weight).
[0036] The preparation method of the high-strength magnesium-lithium-aluminum-yttrium-calcium alloy is as follows:
[0037] Melting process: The entire smelting process is in SF 6 / CO 2 Under mixed gas protection conditions. Weigh pure Mg, pure Al, and Mg-Y master alloys (Mg-25wt% Y alloy, also known as Mg-Y25 alloy or Mg-25Y alloy) according to the formula quantity, that is, the weight of Y accounts for the total weight of Mg-25wt% Y alloy The weig...
Example Embodiment
[0041] Example 3: Preparation of high-strength magnesium-lithium-aluminum-yttrium-calcium alloy.
[0042] The high-strength magnesium-lithium-aluminum-yttrium-calcium alloy of this embodiment contains the following components by weight percentage: 77.492wt% of Mg, 12wt% of Li, 6wt% of Al, 3wt% of Y, 1.5wt% Ca, a total of 0.008wt% of impurity elements Si, Fe, Cu and Ni (wt% refers to the percentage of the weight of each component to the total weight of the target alloy, the total weight is Mg, Li, Al and various intermediate The total weight of the alloy).
[0043] The preparation method of the high-strength magnesium-lithium-aluminum-yttrium-calcium alloy is as follows:
[0044] Melting process: The entire smelting process is in SF 6 / CO 2 Under mixed gas protection conditions. Weigh pure Mg, pure Al, and Mg-Y master alloys (Mg-25wt% Y alloy, also known as Mg-Y25 alloy or Mg-25Y alloy) according to the formula quantity, that is, the weight of Y accounts for the total weight of Mg-2...
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