摘要
采用超声冲击技术将SiC颗粒嵌入AZ31B镁合金表层中,获得致密的细化层。对比了超声冲击前后AZ31B镁合金的表面组织结构、显微硬度、残余压应力和耐蚀性。结果表明,经超声冲击处理后镁合金的显微硬度提高了2倍多,残余压应力增大,耐蚀性得到显著改善。
A compact layer with refined grains were obtained on the surface of AZ31B magnesium alloy by embedding SiC particles into it with ultrasonic impact technology.The surface microstructure,microhardness,residual compressive stress,and corrosion resistance of AZ31B magnesium alloy before and after ultrasonic impact treatment were compared.The results showed that the microhardness of magnesium alloy was increased more than doubled after ultrasonic impact treatment,its residual compressive stress was also increased,and its corrosion resistance was significantly improved.
作者
柳健
牛宗伟
杨保伟
蒋瑞鑫
赵庆志
LIU Jian;NIU Zongwei;YANG Baowei;JIANG Ruixin;ZHAO Qingzhi(School of Mechanical Engineering,Shandong University of Technology,Zibo 255049,China)
出处
《电镀与涂饰》
CAS
北大核心
2022年第15期1089-1094,共6页
Electroplating & Finishing
关键词
镁合金
超声冲击
碳化硅
组织结构
显微硬度
残余压应力
耐蚀性
magnesium alloy
ultrasonic impact
silicon carbide
microstructure
microhardness
residual compressive stress
corrosion resistance
