摘要
通过金相试验、硬度检测、疲劳试验和刚度试验,研究了50CrV钢汽车稳定杆余热淬火后的性能。试验结果表明,采用1150℃热弯成形,随后冷却至840~860℃时放入油中冷却,再加热至460~480℃回火1.5h,其力学性能很好,组织主要为回火托氏体,硬度值在43~45HRC,疲劳寿命不低于100万次,平行度误差控制在0.73~1.25mm,最终试样加载产生一定位移后未发生屈服现象。试验表明余热淬火后的各项指标均满足稳定杆的使用要求。
Through metallography,hardness test,fatigue test and rigidity test,the properties of 50CrV automotive stabilizer bar after residual heat quenching were studied.The results show that after hot bending forming at 1150℃ then oil cooling at 840-860~C and reheating at 460- 480℃ for 1.5h,the microstrueture is mainly tempered martensite,the mechanical properties of the samples are very good :the hardness value is 43-45HRC,the fatigue life is not less than 1million times,and the parallelism error is controlled between 0.73mm and 1.25mm. Finally,the samples do not occur yield phenomenon after loading with a certain displacement.The test indicates that all indicators of the samples after residual heat quenching meet the requirements of stabilizer bar.
作者
翟崇琳
苗进
郭燕
孙肖霞
Zhai Chonglin;Miao Jin;Guo Yan;Sun Xiaoxia(Suqian College,School of Mechanical and Electrical Engineering,Suqian Jiangsu 223800,China;Jiangsu Suqian Fangyuan Maehinery Co.,Ltd.,Suqian Jiangsu 223800,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2018年第12期178-181,共4页
Heat Treatment of Metals
基金
江苏高校品牌专业建设工程资助项目(PPZY2015C252)
宿迁市科技计划项目(Z201527)
宿迁市产业发展引导资金项目(M201612)
关键词
稳定杆
余热淬火
疲劳试验
刚度试验
stabilizer bar
residual heat quenching
fatigue test
stiffness test
