夏朝峰,王良龙,陈思悦,金曼

• 1:上海大学材料科学与工程学院

摘要(Abstract)：

采用硬度测试、电导率测量、透射电镜及三维原子探针对Al-Zn-Mg-Cu合金470℃固溶2 h,然后120℃时效后的合金组织和相关性能进行分析。结果表明,试验合金在120℃时效6 h后硬度值的变化比较小,此时的强化析出相为GPI区和η'相,GPI区是由Zn和Mg共同组成的团簇,η'相的化学成分不是固定的,Zn/Mg比的范围为1～1.6。合金的电导率在时效初期迅速升高,时效时间超过6 h后合金的电导率上升的速度比时效初期的小。

关键词(KeyWords)： Al-Zn-Mg-Cu铝合金;三维原子探针;GPI区;η'相

Abstract:

Keywords:

基金项目(Foundation): 国家级大学生创新实验项目

作者(Author): 夏朝峰,王良龙,陈思悦,金曼

DOI: 10.13289/j.issn.1009-6264.2011.s1.029

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