ZA27合金时效过程研究  

Aging Process of ZA27 Alloy

作　　者：汤宏群[1] 曾建民[1] 邹勇志[2] 顾红[1] 

机构地区：[1]广西大学有色金属材料及其加工新技术教育部重点实验室,广西南宁530004 [2]西北工业大学凝固技术国家重点实验室,陕西西安710072

出　　处：《机械工程材料》2007年第4期68-70,共3页Materials For Mechanical Engineering

基　　金：广西教育厅高校科学研究项目(AA1644);广西科技厅科技攻关资助项目(AA701006)

摘　　要：采用差示扫描量热分析法(DSC)和高温显微分析法分别研究了ZA27合金的等温时效转变过程和加热过程中的共析转变。结果表明:与传统方法相比,采用差示扫描量热分析法研究ZA27合金等温时效转变过程具有快速、准确、制样简单、操作方便等特点;另外,ZA27合金加热过程中的共析转变速度很快,转变首先在晶界处开始,迅速向晶内扩展。The aging process of isothermal transformation and eutectoid transformation were studied by using DSC and high temperature microscopy. Compared with conventional methods, DSC has the advantages of rapidity, accuracy, simpler specimen preparation and convenient operation process. In addition the speed of eutectoid transformation in heating ZA27 alloy is very fast and the eutectoid transformation originated at the grain boundary firstly, then spread rapidly into grain interior as the temperature increased.

关 键 词：ZA27合金 时效 共析转变 

分 类 号：TG113.14[金属学及工艺—物理冶金]