固溶处理对0Cr17Ni4Cu4Nb钢耐腐蚀性能及组织的影响  

Effect of Solution Treatment on Corrosion Resistance Property and Microstructure of 0Cr17Ni4Cu4Nb Steel

作　　者：杨世伟[1] 郭亚欢[1] 张天宇 赵鹏成[2] 

机构地区：[1]哈尔滨工程大学材料科学与化学工程学院,黑龙江哈尔滨150001 [2]空军航空大学飞行训练基地,吉林长春130022

出　　处：《材料开发与应用》2010年第6期1-5,共5页Development and Application of Materials

基　　金：航天部三院科技攻关项目(KDD-17)

摘　　要：运用极化曲线、循环极化曲线等电化学方法研究了0Cr17Ni4Cu4Nb钢经不同工艺固溶处理后的耐海水腐蚀性能,并对显微组织进行了观察和分析。试验结果表明:在1040℃下该不锈钢经60min固溶处理可获最佳的耐海水腐蚀性能和较高的硬度值。其显微组织主要为淬火马氏体+少量的残余奥氏体+δ-铁素体,且晶粒大小均匀。The corrosion resistance property in artificial seawater of 0Cr17Ni4Cu4Nb steel after different heat treatment processes was investigated by electrochemical tests and the microstrueture was analyzed. The results indicated that the corrosion resistance property and hardness of the steel are improved after solution treatment for 60min at 1040℃ before the intermediate treatment and aging treatment. The main phases of the steel after the heat treatment are quenched martensite, some retained austenite and 8- ferritic and the grain size is uniform.

关 键 词：固溶处理 Cr17Ni4Cu4Nb钢 耐海水腐蚀性能 

分 类 号：TG172.5[金属学及工艺—金属表面处理]