南京航空航天大学学报（英文版）2009，Vol.26Issue(3)：178-183,6.
喷丸强化10Ni3MnCuAl钢的表面性能
SURFACE CHARACTERISTICS OF 10Ni3MnCuAl STEEL BY SHOT PEENING
摘要
Abstract
The surface of grinding 10Ni3MnCuAl steel is processed by the shot peening with different intensities. After shot peening, the metallographic structure of 10Ni3MnCuAl steel and the micro-structure on the surface layer are analyzed. The micro-hardness in the shot peening affected layer and the residual pressure stress are surveyed. The changes of surface quality, such as micro-hardness, metallographic structure and residual stress caused by shot peening are investigated. The result shows that shot peening can significantly improve surface quality and fatigue life of 10Ni3MnCuAl steel. The over peening effect is produced when the shot peening intensity is high, and it leads to the decrease of the fatigue life. When the optimal arc high value of shot peening is 0.40 mm in experiments, the best surface quality is obtained and the depth of the residual stress in the precipitation-hardening layer reaches 450 μm.关键词
喷丸/表面完整性/残余应力/过喷Key words
shot peening/ surface properties/ residual stress/ over peening分类
矿业与冶金引用本文复制引用
缪宏,左敦稳,王红军,汪洪峰..喷丸强化10Ni3MnCuAl钢的表面性能[J].南京航空航天大学学报（英文版）,2009,26(3):178-183,6.基金项目
国家自然科学基金(50675104)资助项目. Foundation item: Supported by the National Natural Science Foundation of China (50675104). （50675104）
