黑龙江科技学院学报Issue(2)：123-126,4.
TC4合金氩弧熔覆TiN复合涂层的组织及耐磨性
Microstructure and wear resistance of TiN composite coating on TC4 alloy by argon arc cladding
摘要
Abstract
Aimed at improving the titanium alloy surface properties, this paper introduces the suc- cessful preparation of Ti-based composite coating reinforced by TiN particle on the surface of TC4 steel, based on argon are cladding technique with the pre-alloyed powder of TiN and Ti. The paper describes an analysis of the mierostructure and phase of the coating using scanning electron microscopy （ SEM）, X - ray diffraction（XRD） and the examination of microhardness and wear resistance at room temperature of the composite coating by means of microhardness tester and wear tester respectively. The results prove that TIG cladding coating behaves in a uniform and compact way as to produce a metallurgical bond be- tween the TC4 steel substrate and the coating consisting mainly of TiN stick-like dendrites TiN particles. The composite coating reinforced by TiN particle affords a significant improvement in surface hardness of TC4 alloy, resulting in the highest microhardness of 9.5 GPa in some cases. The composite coating ex- hibits a better wear resistance under dry sliding wear test conditions than otherwise would occur. The composite coatings shows wear resistance nine times higher than that of TC4 coatings.关键词
TC4合金/氩弧熔覆/TiN/显微组织Key words
TC4 alloy/argon arc cladding/TiN/microstructure分类
矿业与冶金引用本文复制引用
孟君晟,王振廷..TC4合金氩弧熔覆TiN复合涂层的组织及耐磨性[J].黑龙江科技学院学报,2012,(2):123-126,4.基金项目
黑龙江省科技厅科技攻关重点项目 （）
黑龙江省教育厅科学技术研究面上项目 （）
