Al-Zn-Mg-Cu系合金微合金的研究现状与展望
张允康，许晓静，罗勇，吴桂潮
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作者单位：江苏大学机械工程学院先进成形研究所
中文关键字：铝合金；微合金化；复合微合金化
英文关键字：aluminum alloys；microalloying；composite microalloying
中文摘要：Al-Zn-Mg-Cu 系铝合金具有高强、高韧等一系列优异性能，已被广泛的应用于航空、航天及军事等工业中。微合金化是挖掘合金性能潜力的重要方法。本文阐述了Al-Zn-Mg-Cu系铝合金微合金化及复合微合金化的研究现状。指出Zr、Sc、Sr及其它元素（Pr、Yb、La和Er等）的微合金化和复合微合金化的特点及作用机理，并对今后微合金化研究提出了建议。
英文摘要：Al-Zn-Mg-Cu aluminum alloy exhibits many excellent properties such as high strength and high toughness, and are used widely in the important fields of aviation, spaceflight and military industries. Microalloying is an important and effective approach to improve and excavate the performances of alloys. For this paper, the research status of microalloying and composite microalloying of Al-Zn-Mg-Cu aluminum alloy were reviewed. The microalloying and composite microalloying characteristics of Zr、Sc、Sr and other elements (Pr, Yb, La, Er, etc) were presented, and their mechanisms improving properties of alloys were analyzed. Some suggestions of microalloying research of Al-Zn-Mg-Cu aluminum alloy were put forward.