机械科学与技术2011，Vol.30Issue(9)：1418-1423,6.
喷丸强化与表面完整性对300M钢疲劳性能的影响
Influence of Shot Peening and Surface Integrity on the Fatigue Properties of 300M Steel
摘要
Abstract
The influence of shot peening intensity,its coverage and surface integrity on the fatigue properties of 300M steel is studied,in order to improve the fatigue resistance of the high strength steel.The influence of shot peening on the surface characteristics,including residual stress,roughness,damage and hardness,is studied by using X-ray diffraction analysis,surface profile measurement,scanning electron microscopy（SEM）,microhardness instrument,etc.The mechanism of fatigue resistance improvement by shot peening is also discussed.The results reveal that the effect of the fatigue properties improved by shot peening is not a simple monotonic variation with shot peening intensity and coverage.The surface integrity and fatigue resistance are higher in a certain range of shot peening parameters.When the shot peening parameters are chosen,it is blinded that merely pursuing high intensity or shot peening coverage,while ignoring the surface integrity of metal materials.关键词
300M钢/喷丸强化/表面完整性/疲劳性能Key words
300M steel/shot peening/surface integrity/fatigue property分类
机械制造引用本文复制引用
李瑞鸿,刘道新,张炜,李轩,乔明杰,夏明莉..喷丸强化与表面完整性对300M钢疲劳性能的影响[J].机械科学与技术,2011,30(9):1418-1423,6.基金项目
国家863高技术研究发展计划 （）
国家自然科学基金项目（50671085）资助 （）
