摘要
在不同功率密度下用激光冲击方法对304奥氏体不锈钢表面进行强化,利用X射线衍射仪、扫描电镜和显微硬度计表征了不锈钢的表面组织和性能。激光冲击令奥氏体不锈钢表面形成了约80μm厚的硬化层,显微硬度从基体的160 HV提高到214 HV,同时形变过程会发生奥氏体向马氏体的转变。
The surface of 304 austenitic stainless steel was strengthened by laser shock peening at different power densities.The surface microstructure and properties of the stainless steel were characterized using X-ray diffractometer,scanning electron microscope,and microhardness tester.A hardened layer of about 80μm in thickness was formed on the surface of austenitic stainless steel,having a microhardness of 214 HV which is higher than that of the substrate(160 HV).The deformation process leads to a phase transformation from austenite to martensite.
作者
段水旺
曾鹏
崔文辉
梁亦佳
黄星朗
DUAN Shui-wang;ZENG Peng;CUI Wen-hui;LIANG Yi-jia;HUANG Xing-lang(Institute of Materials and Energy,Guangdong University of Technology,Guangzhou 510006,China)
出处
《电镀与涂饰》
CAS
CSCD
北大核心
2018年第17期773-776,共4页
Electroplating & Finishing
关键词
奥氏体不锈钢
激光冲击
表面强化
马氏体
相变
显微硬度
austenitic stainless steel
laser shock peening
surface strengthening
martensite
phase transformation
microhardness
