Al-Zn-Mg合金升温时效析出过程的研究  

Analysis on Precipitation Process of Al-Zn-Mg Alloy during Heating Aging Process

作　　者：石峰[1] 赵子君 刘佳佳 于文峰 张智超[1] 王旭[1] 王茂廷[1] SHI Feng;ZHAO Zijun;LIU Jiajia;YU Wenfeng;ZHANG Zhichao;WANG Xu;WANG Maoting(School of Mechanical Engineering, Liaoning Shihua University, Fushun 113001,China)

机构地区：[1]辽宁石油化工大学机械工程学院

出　　处：《热加工工艺》2018年第22期114-116,123,共4页Hot Working Technology

摘　　要：对Al-Zn-Mg合金升温时效过程中的硬度变化进行研究。通过DSC测试对Cu元素对Al-Zn-Mg合金在升温时效过程中的析出过程的影响进行研究。结果表明,升温时效后合金可获得比T6(120℃/24h)更高的硬度。并且Cu元素在升温时效过程中可增加GP区的稳定性,并促进GP区向η'相的转变。The hardness change of Al-Zn-Mg alloy during heating aging process was studied. The influence of Cu element on the precipitation process of Al-Zn-Mg alloy was studied by DSC test. The results show that the alloy can obtain higher hardness than that of T6 (120℃/24h) state. Cu element in the heating aging process can increase the stability of GP zone and promote the transformation of GP into η' phase.

关 键 词：AL-ZN-MG合金 升温时效 硬度 GP区 η'相 

分 类 号：TG156.92[金属学及工艺—热处理] TG166.3[金属学及工艺—金属学]