摘要
以Cr25Ni5Mo2Cu3RE双相不锈钢为对象,采用金相显微镜、万能拉伸试验机、冲击试验机和恒电位仪分析测试手段,研究了Mn含量对Cr25Ni5Mo2Cu3RE双相不锈钢的显微组织、力学性能及腐蚀性能的影响规律。结果表明,奥氏体含量随Mn含量的增加先增多后减少,力学性能和耐电化学腐蚀性能随着Mn含量的增加先增大后降低;当Mn含量在0.6%～0.8%时,Cr25Ni5Mo2Cu3RE双相不锈钢的综合性能最好。
The influence law of Mn content on the microstructure, mechanical properties and corrosion resistance of Cr25Ni5Mo2Cu3RE duplex stainless steel were studied by metallographic microscope, universal tensile testing machine, impact test enginery and potentiostat means testing methods. The test results show that anstenite content with the increase of the Mn content first increases and then decreases. The mechanical properties and electrochemical corrosion resistance with the increase of the Mn content first increases, and then reduces, when Mn content is 0.6%-0.8%, the comprehensive performance of the steel is best.
出处
《热加工工艺》
CSCD
北大核心
2012年第24期63-65,共3页
Hot Working Technology
关键词
双相不锈钢
显微组织
力学性能
腐蚀性能
duplex stainless steel
microstructure
mechanical properties
corrosion resistance
