Al-6.3Zn-2.3Mg-2.2Cu合金均匀化过程的组织演变  

Microstructure evolution of Al-6. 3Zn-2. 3Mg-2. 2Cu aluminum alloy during homogenization

作　　者：王英君[1] 张克伟[1] 任伟才[1] 孙兆霞[1] 

机构地区：[1]东北轻合金有限责任公司,黑龙江哈尔滨150060

出　　处：《轻合金加工技术》2014年第1期21-24,共4页Light Alloy Fabrication Technology

摘　　要：采用金相、扫描电镜、DSC分析和X射线衍射分析等方法,研究了Al-6.3Zn-2.3Mg-2.2Cu合金铸态和均匀化态的显微组织、相组成与分布状态,并进行了单级和双级均匀化后合金的组织对比。结果表明:试验合金经过465℃24h+480℃12 h双级均匀化处理后成分更均匀,残留相更少,达到更加理想的均匀化状态。The microstructure, phase composition and the composition distribution of as- cast and homogenized A1-6.3Zn-2.3Mg-2.2Cu aluminum alloy were studied by means of op- tical micrography analysis, scanning electron micrography analysis, DSC analysis, X-ray dif- fraction analysis, and so on. The results of single-homogenization and double-homogenization were contrasted. The results indicate that compositions of the tested alloy are more homogene- ous, residual phases are reduced and homogenization is more ideal when the alloy was homog- enized at 465℃ for 24 h ＋ at 480℃ for 12 h.

关 键 词：超高强铝合金 均匀化 相组成 组织演变 

分 类 号：TG146.21[一般工业技术—材料科学与工程]