理化检验-物理分册2018，Vol.54Issue(5)：348-350,3.DOI:10.11973/lhjy-wl201805010
金属压簧断裂原因分析
Cause Analysis on Fracture of Metal Pressure Springs
摘要
Abstract
The φ0.5 mm metal pressure springs produced by a company fractured after a period of use.The fracture reasons of the metal pressure springs were analyzed by means of macroscopic observation,chemical composition analysis,tensile property test,fracture micro morphology analysis,fatigue test and so on.The results show that the metal pressure springs inhaled hydrogen in the process of electroplating and produced hydrogen embrittlement,and cracks generated and expanded in the intergranular fracture zone,which eventually caused the fracture of the pressure springs.The fracture of the metal pressure spring could be effectively controlled by changing the ratio of electroplating solution and the electroplating bath.关键词
压簧/断裂/氢脆/沿晶断裂Key words
pressure spring/fracture/hydrogen embrittlement/intergranular fracture分类
矿业与冶金引用本文复制引用
张海营,赵向南..金属压簧断裂原因分析[J].理化检验-物理分册,2018,54(5):348-350,3.基金项目
国家质量监督检验检疫总局科技计划资助项目(2016QK145) （2016QK145）
