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AL- ZN-CU-MG ALLOYS WITH HIGH STRENGTH AND METHOD OF FABRICATION
AL- ZN-CU-MG ALLOYS WITH HIGH STRENGTH AND METHOD OF FABRICATION
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机译:高强度Al-ZN-CU-MG合金及其制造方法
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摘要
The invention relates to a rolled product made of aluminum alloy with a thickness of at least 50 mm comprising (in weight %): Zn 6.9-7.5; Mg 1.8-2.2; Cu 1.8-2.2, where the sum Cu+Mg is between 3.8 and 4.2; Zr 0.04-0.14; Mn 0-0.1; Ti 0-0.15; V 0-0.1; Fe≤0.15; If≤0.15; impurities ≤0.05 each and ≤0.15 total, balance aluminum. The invention also relates to the method of manufacturing such a product. The products according to the invention are particularly advantageous because they have a very favorable compromise between static mechanical strength, toughness and environmental-assisted cracking performance under conditions of high stress and humid environment.
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机译:本发明涉及一种由铝合金制成的厚度至少为50mm的轧制产品,该轧制产品包含(以重量%计):Zn 6.9-7.5;镁1.8-2.2; Cu 1.8-2.2,其中Cu + Mg的总和在3.8和4.2之间; Zr 0.04-0.14;锰0-0.1;钛0-0.15; V 0-0.1;铁≤0.15;如果≤0.15;杂质≤0.05且总≤0.15,其余为铝。本发明还涉及制造这种产品的方法。根据本发明的产品是特别有利的,因为它们在高应力和潮湿环境下在静态机械强度,韧性和环境辅助的开裂性能之间具有非常有利的折衷。
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