奥氏体不锈钢渗碳层的组织及耐蚀强化性能研究  

Study on Structure and Corrosion Resistance Analysis of Carburizing Organization of Austenitic Stainless Steel

作　　者：李朋[1] 潘邻[1] 张良界[1] 杨闽红[1] 朱云峰[1] 马飞[1] 王成虎 

机构地区：[1]武汉材料保护研究所,武汉430030 [2]江苏海纳机电集团有限公司,扬中212216

出　　处：《表面技术》2013年第4期69-71,86,共4页Surface Technology

基　　金：国家自然科学基金(50975210)

摘　　要：针对常规渗碳工艺会削弱奥氏体不锈钢耐蚀性的问题,通过对现有气体渗碳技术进行改进,采用前处理活化、降低渗碳温度的方法,实现了奥氏体不锈钢渗碳兼顾表面强度与耐蚀性能的目标。采用该工艺对AISI304和AISI316奥氏体不锈钢进行渗碳处理,并分析渗层组织和性能,结果表明,在470℃条件下,AISI316不锈钢经气体渗碳处理后,渗碳层具有优异的耐蚀强化性能。In view of the conventional carburization weakening austenitic stainless steel corrosion resistance problem,based on the existing gas carburizing technology was improved,using pretreatment activation,carburizing temperature reduction methods,realized the austenitic stainless steel carburized surface strength and corrosion resistant properties of the target.Using this process on AISI304,AISI316 austenitic stainless steel carburizing processing,and get the austenitic stainless steel for low temperature carburizing organization performance carries on the analysis and research,research shows that under the condition of 470 ℃,AISI316 stainless steel carburization treated by low temperature gas carburizing layer has excellent corrosion resistance improved performance.

关 键 词：奥氏体不锈钢 低温气体渗碳 耐蚀强化 渗碳组织 

分 类 号：TG174.445[金属学及工艺—金属表面处理]