奥氏体不锈钢卡套表面低温离子硬化处理的研究  

Study on Low-temperature Plasma Hardening of Austenitic Stainless Steel Ferrule

作　　者：赵程[1] 郑洪福[1] 韩伯群[2] 

机构地区：[1]青岛科技大学机电工程学院表面技术研究所,山东青岛266061 [2]江苏丰东热技术股份有限公司,江苏大丰224100

出　　处：《液压气动与密封》2014年第10期25-27,共3页Hydraulics Pneumatics & Seals

摘　　要：采用低温离子渗碳硬化处理技术,在316奥氏体不锈钢卡套表面形成一层无碳化铬析出的碳的过饱和固溶体(S相),可以实现在不降低表面耐蚀性能的前提下,大幅度提高不锈钢卡套的表面硬度。对低温渗碳硬化处理后的不锈钢卡套再进行一次亮化处理,不仅可以恢复不锈钢原有的颜色,而且还可以进一步提高硬化不锈钢卡套表面的耐蚀性能。Plasma carburizing of 316 austenitic stainless steel ferrules was carried out at low temperature to improve the surface hardness. after carburizing, a layer of carbon supersaturated solid solution （i.e. the Sc phase） was formed on the steel surface without precipitation of chromium carbide. The surface hardness of the carburized steel is greatly improved without degradation of its corrosion resistance. The brightening treatment of the carburized ferrules could not only restore the original stainless steel color, but also improve the corrosion resistance of the hardened ferrules.

关 键 词：奥氏体不锈钢卡套 低温离子渗碳 过饱和固溶体 S相 亮化处理 

分 类 号：TH137[机械工程—机械制造及自动化]