不同成形厚度对奥氏体不锈钢封头组织和性能的影响  

Effect of different forming thickness on microstructure and properties of austenitic stainless steel head

作　　者：简添福 李晖榕 郭志贤 JIAN Tianfu;LI Huirong;GUO Zhixian(Zhangzhou Branch of Fujian Boiler and Pressure Vessel Inspection Institute,Zhangzhou 363000,China)

机构地区：[1]福建省锅炉压力容器检验研究院漳州分院,漳州363000

出　　处：《理化检验（物理分册）》2023年第10期34-37,共4页Physical Testing and Chemical Analysis(Part A:Physical Testing)

基　　金：漳州市自然科学基金项目(ZZ2021J30);福建省锅炉压力容器检验研究院科技项目(FJGJ2022001)。

摘　　要：采用超声测厚、铁素体数测量、金相检验、硬度测试等方法研究了不同成形厚度对奥氏体不锈钢封头组织和性能的影响。结果表明:8.0 mm厚封头成形后,由中心至直边段各区域的壁厚减薄量或增厚量、马氏体相变量、硬度变化量均相对较小,组织性能整体最好。The effects of different forming thicknesses on the microstructure and properties of austenitic stainless steel heads were studied by means of ultrasonic thickness measurement,ferrite number measurement,metallographic examination and hardness test.The results show that after the forming of the 8.0 mm thick head,the wall thickness reduction or thickening,martensite phase variable and hardness variation in each region from the center to the straight edge were relatively small,and the overall structure and performance were the best.

关 键 词：冷冲压成形 标准椭圆形封头 马氏体相变 显微组织 硬度 

分 类 号：TG115.28[金属学及工艺—物理冶金]