理化检验-物理分册Issue(11)：814-816,3.DOI:10.11973/lhjy-wl201511016
42CrMo钢导向端轴的断裂原因分析
Fracture Reason Analysis of Guide Bearing of 42CrMo Steel
王硕 1徐世斌1
作者信息
- 1. 哈尔滨锅炉厂有限责任公司 材料研究所，哈尔滨 150046
- 折叠
摘要
Abstract
By means of macrographic inspection, chemical composition analysis, mechanical properties testing,metallographic examination and energy spectrum scanning,the fracture reason of guide bearing of 42CrMo steel was analyzed.The results show that the fracture was occurred due to non-metallic inclusions and unreasonable heat treatment mechanism.The expectanted uniform tempered sorbite structure was not obtained.Quenching treatment led to volume expansion and stress concentration on the edge of guide bearing,and then microcrack formed at the position of nonmetallic inclusions,finally with the crack extending the guide bearing fractured.关键词
4 2 CrMo钢/端轴/断裂/夹杂缺陷Key words
42CrMo steel/guide bearing/fracture/inclusion defect分类
矿业与冶金引用本文复制引用
王硕,徐世斌..42CrMo钢导向端轴的断裂原因分析[J].理化检验-物理分册,2015,(11):814-816,3.
