Cr12MoV钢盐浴渗钛工艺研究  

Study of Salt-Bath Titanizing Process for Cr12MoV Steel

作　　者：潘成刚[1] 杨虎群[1] 周家林[1] 常庆明[1] 

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,湖北武汉430081

出　　处：《铸造技术》2017年第6期1318-1321,共4页Foundry Technology

基　　金：国家自然科学基金(51375353);省部共建耐火材料与冶金国家重点实验室青年基金(2014QN03)资助项目

摘　　要：采用TD盐浴技术在小型井式盐浴炉中对Cr12MoV钢分别进行了硼砂盐浴渗钛、铬钛共渗、铬钛复合渗处理。用XRD对渗层的物相进行鉴定,用OM和SEM分析渗层组织,用显微硬度计测试渗层的显微硬度。结果表明:经盐浴处理后,Cr12MoV钢表面可以得到厚的渗层,硬度显著提高,硬度梯度不大。铬钛共渗和铬钛复合渗能得到少量不连续的Ti C覆层,而渗钛工艺只能得到渗硼覆层。The thermal diffusion processes of titanizing, chromtitanizing and complex chromizing-titanizing on Crl2MoV steel substrates were performed in a small pit type borax salt bath furnace. Phases in the coatings were identified using XRD. Microstructures of the coatings were analyzed using OM and SEM. Microhardnesses of the coatings were tested by microhardness meter test. The results show that the coatings on the surface of Crl2MoV steel under different salt bath treatments have the characteristics of high hardness and small hardness gradient. Chromtitanizing and complex chromizing-titanizing can get a small amount of discontinuous TiC coatings, but titanizing process can only get boronizing coating.

关 键 词：CR12MOV钢 硼砂 渗钛 铬钛共渗 铬钛复合渗 

分 类 号：TG174.445[金属学及工艺—金属表面处理]