理化检验-物理分册2016，Vol.52Issue(11)：818-821,4.DOI:10.11973/lhjy-wl201611015
汽车转向直拉杆断裂原因分析
Analysis on Fracture Reasons of an Automobile Steering Drag Link
吴文祥 1尚灿 1廖冰 1陈旭东1
作者信息
- 1. 苏州华碧微科检测技术有限公司，苏州 215024
- 折叠
摘要
Abstract
The fracture reasons of an automobile steering drag link were analyzed by the methods of chemical composition analysis,hardness testing,metallographic examination,macro and micro morphology observation of the fracture surface.The results show that:under the action of normal alternating load,corrosion pits on the arc part of the steering drag link generated the stress concentration and became the crack source;the fatigue cracks expanded constantly,which led to the fatigue fracture of the steering drag link.关键词
转向直拉杆/应力集中/疲劳断裂/腐蚀坑Key words
steering drag link/stress concentration/fatigue fracture/corrosion pit分类
矿业与冶金引用本文复制引用
吴文祥,尚灿,廖冰,陈旭东..汽车转向直拉杆断裂原因分析[J].理化检验-物理分册,2016,52(11):818-821,4.
