边条翼热处理裂纹分析  

Crack analysis of strake-wing during heat treatment

作　　者：李亚红[1] 郑淑丽[1] 刘洋[1] 盛春翔 郑莉[1] 

机构地区：[1]西安长峰机电研究所,陕西西安710065

出　　处：《金属热处理》2016年第6期172-175,共4页Heat Treatment of Metals

摘　　要：边条翼在热处理后出现裂纹,利用化学成分、硬度、断口及显微组织等方法对热处理裂纹进行分析。结果表明:材料中存在的原始裂纹和非金属夹杂物是边条翼淬火开裂的主要原因。淬火时,原始裂纹和非金属夹杂物成为裂纹源,促使裂纹沿原始裂纹和非金属夹杂物分布方向进一步扩展,并形成宏观裂纹。After heat treatment strake-wing appeared crack, and it was analyzed by chemical composition, hardness, fracture and microstructure. The results show that the main reasons of the quenching cracking is the original crack and nonmetallic inclusions of materials, which become a crack resource during the quenching, and promote the crack tO propagate along the original crack and distributing direction of nonmetallic inclusions and form macroscopic crack.

关 键 词：边条翼 裂纹 非金属夹杂物 

分 类 号：TG157[金属学及工艺—热处理]