固溶处理对00Cr22Ni5Mo3N双相不锈钢组织和性能的影响  

Effect of Solution Treatment on Microstructure and Property of 00Cr22Ni5Mo3N Duplex Stainless Steel

作　　者：申鹏 颜海涛[1,2] 杨振 刘腾飞 

机构地区：[1]振石集团东方特钢股份有限公司,浙江嘉兴314005 [2]浙江大学,浙江杭州310058

出　　处：《热加工工艺》2012年第22期207-209,共3页Hot Working Technology

基　　金：浙江省科技计划项目(2010C01003)

摘　　要：研究了00Cr22Ni5Mo3N双相不锈钢板在不同固溶处理工艺下的组织、力学性能、铁素体含量和耐点蚀性能的变化规律。研究表明:在1020～1250℃,随固溶处理温度的升高,抗拉强度、硬度呈先减小后增加的规律,铁素体含量随温度的升高而增加,奥氏体显微组织结构由纤维状转变成岛状;在1020～1120℃,随温度的升高耐点蚀速率变化不大;在1150～1250℃耐点蚀速率随温度的升高急剧增加。The effects of solution treatment on the microstructure, mechanical properties,ferrite content and pitting corrosion resistant property of 00Cr22Ni5MO3N duplex stainless steel were studied. The results show that the strength and hardness is first decreasing and then increasing at 1020-1250 ℃, the content of ferrite is increasing, the fibrous tissue microstructure of anstenitic changes into the island gradually; while the pitting corrosion rate rapidly increases with temperatures rising at 1150-1250 ℃, it changes little at 1020-1120℃.

关 键 词：双相不锈钢 固溶处理 力学性能 铁素体含量 耐点蚀性能 

分 类 号：TG156.91[金属学及工艺—热处理]