盐浴软氮化工艺在燃气轮机零件上的应用  

Application of Salt Bath Nitriding on Gas Turbine Parts

作　　者：张进 宋帆 丁丽锋 

机构地区：[1]上海电气电站设备有限公司汽轮机厂,上海200240

出　　处：《热力透平》2014年第4期306-309,共4页Thermal Turbine

摘　　要：介绍了盐浴软氮化热处理工艺试验过程,比较了马氏体不锈钢、奥氏体不锈钢和合金钢材料的氮化特性.通过氮化层性能对比分析获得了最佳的氮化工艺：565℃左右盐浴,保温2～3 h.通过氮化前后尺寸测量和盐雾腐蚀试验,表明盐浴软化工艺具有变形小的效果,可提高合金钢零件的耐腐蚀性.The process of salt bath nitriding was investigated. The nitride layer characteristics of martensite steel, austenitic steel and alloyed steel were studied through hardness test. Via metallographic analysis, the optimized bath nitriding process was obtained： nitriding around 565℃ with holding time 2h to 3h. The results of dimension and salt spray corrosion test showed that the process had little deformation effect and could improve the anti-corrosion properties of alloyed steel,

关 键 词：盐浴软氮化 变形 表面处理 

分 类 号：TK266[动力工程及工程热物理—动力机械及工程]