阻尼器用低屈服点钢BLY160的低周疲劳性能  

Low cycle fatigue properties of steel BLY160 with low yield point for damper

作　　者：付磊[1] 张应迁[1] 罗云蓉[1] 于强[2] 李明田 曾宪光 

机构地区：[1]四川理工学院机械工程学院,四川自贡643000 [2]四川理工学院理学院,四川自贡643000 [3]材料腐蚀与防腐四川省重点实验室,四川自贡643000

出　　处：《钢铁研究学报》2015年第3期65-69,共5页Journal of Iron and Steel Research

基　　金：材料腐蚀与防腐四川省重点实验室基金资助项目(2012CL10);四川省教育厅资助项目(13ZA0129);过程装备与控制工程四川省高校重点实验室基金资助项目(GKYJ201101;GK201205)

摘　　要：对BLY160低屈服点钢低周疲劳性能进行了研究。采用轴向应变控制方法,在MTS809电液伺服疲劳试验机上开展低周疲劳试验,分别研究了在循环载荷作用下试验材料的循环应力响应特征、循环应力与应变的关系以及应变幅和应变速率对材料低周疲劳性能的影响。试验结果表明,BLY160钢具有良好的低周疲劳性能,完全满足耗能阻尼器用钢的需要。Low cycle fatigue（LCF）properties of steel BLY160 with low yield point（LYP）was investigated.Low cycle fatigue tests were conducted on MTS809electro-hydraulic servo fatigue testing machine.The tests were run under uniaxial tension-compression loading with total strain control.The response characteristics of cyclic stress,the relationship between cyclic stress and strain and the effects of amplitude and rate of strain on low cycle fatigue properties of the test material were researched under cyclic loading.The results show that BLY160 steel plate has excellent low cycle properties to meet the requirement for the steels for energy dissipation damper.

关 键 词：低屈服点钢 低周疲劳 应变控制 应变幅 应变速率 

分 类 号：TG142.15[一般工业技术—材料科学与工程]