TC21合金腐蚀疲劳裂纹扩展行为研究  

Corrosion Fatigue Crack Propagation Behavior of TC21 Alloy

作　　者：吉楠[1] 王泓[1] 张建国[1] 乙晓伟[1] 杨智[2] 秦锋英[2] 

机构地区：[1]西北工业大学材料学院,陕西西安710072 [2]中航工业第一飞机设计研究院,陕西西安710089

出　　处：《热加工工艺》2013年第20期61-62,共2页Hot Working Technology

摘　　要：研究了TC21合金在腐蚀环境下的裂纹扩展行为。结果表明,腐蚀环境能加速TC21的疲劳裂纹扩展速率;对疲劳断口分析发现。The crack growth behavior of TC21 alloy was investigated in corrosion environment. The results indicate that the corrosion environment can promote the crack growth speed of the alloy. By the study of the fractography, the mechanism of corrosion crack growth is mainly hydrogen embirttlement and more brittle striations are observed in brine environment.

关 键 词：TC21合金 疲劳裂纹扩展 腐蚀环境 

分 类 号：TG115.57[金属学及工艺—物理冶金]