铸造技术2016，Vol.37Issue(7)：1322-1324,1332,4.DOI:10.16410/j.issn1000-8365.2016.07.004
Q345R钢低周超低周疲劳性能研究
Investigations of Low Cycle Fatigue (LCF) and Extremely Low Cycle Fatigue (ELCF) Properties of Q345R Steel
摘要
Abstract
Low cycle fatigue and extremely low cycle fatigue tests of Q345R steel were conducted according to the actual working conditions and anti-seismic safety design.The fatigue tests were conducted on MTS-809 fatigue test system under uniaxial tension-compression loading with steady strain control.Typical hysteresis loops and cyclic stress-strain curves were obtained.It is found that Q345R steel is cyclic hardening material compared with its tensile stress-strain curve.Regression analysis was performed to identify fatigue property parameters as well as the ε-Nf curves to provide bases for the anti-seismic design and fatigue-life prediction of pressure vessel.关键词
Q345R/低周疲劳/超低周疲劳/疲劳特性参数Key words
Q345R/low cycle fatigue/extremely low cycle fatigue/fatigue property parameters分类
矿业与冶金引用本文复制引用
陈延强,罗云蓉,林海波,曾涛..Q345R钢低周超低周疲劳性能研究[J].铸造技术,2016,37(7):1322-1324,1332,4.基金项目
四川省材料腐蚀与防护重点实验室开放基金 （）
(项目编号:2013CL07) （项目编号:2013CL07）
四川理工学院研究生创新基金(项目编号:y2014033)资助 （项目编号:y2014033）
