金属铍的微屈服行为及机理  

Micro-yield behavior and mechanism of beryllium metal

作　　者：钟景明[1] 高勇[1] 王东新 王学泽 王零森[3] 

机构地区：[1]西安理工大学电子工程系,西安710048 [2]西北稀有金属材料研究院,石嘴山753000 [3]中南大学粉末冶金国家重点实验室,长沙410083

出　　处：《中国有色金属学报》2004年第10期1637-1641,共5页The Chinese Journal of Nonferrous Metals

基　　金：国家自然科学基金资助项目(59764002)

摘　　要：为研究金属铍的微屈服行为,通过透射电镜观察了1×10-6、50×10-6和200×10-63种不同微屈服阶段材料位错的变化,初探了铍的微屈服机理。通过130多个铍试样的微屈服强度与屈服强度的比较试验证明,用常规简单的屈服强度试验代替冗长的微屈服强度试验是可能的。In order to study the micro-yield behavior of beryllium metal, the dislocation changes of the material were observed at three kinds of micro-yield region with strain of 1×10^(-6), 50×10^(-6) and 200×10^(-6) by TEM and the micro-yield mechanism of beryllium was approached. Through comparison between the micro-yield strength value of and the corresponding yield strength value of more than 130 samples, it is shown that the tedious micro-yield tests can be replaced by common and simple yield tests.

关 键 词：铍 微屈服强度 位错 屈服强度 

分 类 号：TF824[冶金工程—有色金属冶金] TF124.32