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AssigneeXiamen University
InventorsShuiyuan Yang, Jixun Zhang, Xinyu Qing, Lipeng Guo, Cuiping Wang, Xingjun Liu, Jinbin Zhang, Yixiong Huang
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The present invention discloses a copper-zinc-aluminum-iron single crystal alloy material having an ultra-large grain structure of 5-50 cm grade, obtained by annealing an as-cast alloy having a polycrystalline structure through a single phase region of 800-960° C. for 2-105 h, where the as-cast alloy includes, by weight percentage, 62-82% of copper, 6-29% of zinc, 5-12% of aluminum, and 2-5% of iron. In the present invention, the alloy compositions have an essential difference and are a copper-zinc-aluminum-iron quaternary alloy, and the iron element is an indispensable alloying element. The preparation process of the present invention is extremely simple and very easy to implement and has a very good application prospect.
A copper-zinc-aluminum-iron single crystal alloy material, wherein the copper-zinc-aluminum-iron single crystal alloy material has an ultra-large grain structure of 5-50 cm grade, and is obtained by annealing an as-cast alloy having a polycrystalline structure through a single phase region of 800-960° C. for 2-105 h, wherein the as-cast alloy comprises, by weight percentage, 62-82% of copper, 6-29% of zinc, 5-12% of aluminum, and 2-5% of iron;
Dependencies are inferred from the claim text.