摘要
本文利用光学显微镜和扫描电子显微镜,对裂纹件的断口形貌、夹杂物分布、显微组织进行了检查,通过排查分析,得出裂纹产生的主要原因是链条连接片外侧存在疏松层,在连接孔外侧有许多缺陷。
Using an optical microscope and scans electron microscope in this text,checked fracture surface of the crack piece,distribution of non-metrallic inclusion,microstructure.Through analysising,geted the main reason of creating crack is a loose layer existing at the outside side of the conjunction slice of the chain,and there are many defects at outside of the link bore.
出处
《金属热处理》
CAS
CSCD
北大核心
2007年第z1期275-277,共3页
Heat Treatment of Metals
关键词
链条连接片
夹杂物
显微硬度
疏松层
the conjunction slice of the chain
non-metrallic inclusion
microhardness
a loose layer
