Cr12MoV模具钢中性盐浴渗钛组织与性能  

Microstructure and Properties of Cr12MoV Steel after Neutral Salt-bath Titanizing Treatment

作　　者：潘成刚[1] 程伟伦 周家林[1] 常庆明[1] 王洪福[2] 

机构地区：[1]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室 [2]中北大学机械与动力工程学院

出　　处：《特种铸造及有色合金》2017年第1期1-5,共5页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(51375353);高等学校博士学科点专项科研基金资助项目(20131420120002)

摘　　要：采用TD技术在小型井式盐浴炉中对Cr12MoV钢分别进行了渗钛、铬钛共渗、铬钛复合渗中性盐浴处理。测试分析了覆层的显微组织、物相结构、厚度、硬度、耐磨性和耐腐蚀性。结果表明,Cr12MoV中性盐浴渗钛、铬钛共渗和铬钛复合渗覆层的显微硬度(HV0.05)都超过了3 000;铬钛共渗和铬钛复合渗覆层的显微硬度呈现梯度变化;渗钛、铬钛共渗和铬钛复合渗覆层的耐磨性和耐腐蚀性较基体有很大提高。The thermal diffusion processes of titanizing,chromtitanizing and compound chromizing-titanizing on Cr12 MoV steels were performed in a small pit type neutral salt bath furnace.Microstructure,phase constituent,thickness,hardness,wear resistance and corrosion resistance of the coatings prepared were tested and analyzed.The results show that surface microharness of three kinds of coatings are more than 3000HV0.05.Coating microhardness of chromtitanizing and compound chromizing-titanizing exhibits gradient change.Wear resistance and corrosion resistance of coatings after three kinds of TD treatment are improved greatly compared with those of the substrate.

关 键 词：CR12MOV钢 铬钛共渗 渗钛 铬钛复合渗 中性盐 

分 类 号：TG174.4[金属学及工艺—金属表面处理]