安顺学院学报2025，Vol.27Issue(2)：132-135,4.
60Si2CrVA弹簧钢断裂原因分析
Analysis of Fracture Causes of 60Si2CrVA Spring Steel
摘要
Abstract
Taking the fractured parts of 60Si2CrVA spring steel as the research object,chemical com-position,metallographic structure,fracture surface scanning,and energy spectrum detection were conduc-ted on the fracture area.The results show that the fracture was caused by improper hot working,which de-carburizes the spring steel surface surface,reduces the fatigue performance of the spring,and thus causes fatigue cracks in the local area of the spring,and eventually leads to early fatigue fracture of the spring.In addition,some C in the spring steel exists in the form of graphite,which was abnormal,causing the conti-nuity of the spring steel to be destroyed and the effective carbon content to be less,resulting in insufficient strength grade of the material and abnormal fracture during the design life cycle.关键词
疲劳/断裂/弹簧钢/石墨Key words
fatigue/fracture/spring steel/Gaphite分类
矿业与冶金引用本文复制引用
张殿喜,袁春,唐勇,陈彪..60Si2CrVA弹簧钢断裂原因分析[J].安顺学院学报,2025,27(2):132-135,4.基金项目
贵州省教育厅高等学校科研平台项目"失效分析与可靠性研究集成攻关大平台项目"(黔教合KY字[2021]315). （黔教合KY字[2021]315）
