形变热处理对含铜高纯钢时效组织的影响  

Influence of thermo-mechanical processing on aging microstructure of high purity steel bearing copper

作　　者：安治国[1] 刘宗昌[1] 王海燕[1] 王玉峰[1] 任慧平[1] 

机构地区：[1]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《包头钢铁学院学报》2005年第3期237-241,共5页Journal of Baotou University of Iron and Steel Technology

基　　金：国家自然科学基金资助项目(50361001)

摘　　要：借助于扫描电子显微镜(Quanta 400)和高分辨透射电镜(JEM-2010)研究了含铜高纯钢形变过程中的时效组织变化.结果表明,冷变形后呈现形变孪晶组织,在时效过程中铜的析出优先于钢板的再结晶,促进了富铜析出物在铁素体晶界处和位错线上的析出.The aging microstructares during thermo-mechanical processing of high purity steel beating copper were observed by means of SEM （Quanta 400） and JEM-2010 HREM. The results showed that the precipitation occurred prior to the recrystallization during aging treatment and the deformation twins were observed after cold strain. The thermo-mechanical processing promoted the precipitation of the rich-copper particles in the ferrite grain boundary and dislocation line.

关 键 词：含铜高纯钢 时效 形变热处理 孪晶 

分 类 号：TG142.1[一般工业技术—材料科学与工程]