Ti_2AlNb合金等离子渗碳及其抗冲蚀性能的研究  

Erosion Wear Behavior of Ti_2AlNb Alloy by Surface Plasmas Carburized

作　　者：朱丹阳[1] 郑韫[1] 翟琳琳[1] 祁博澜 马虹剑[1] 

机构地区：[1]中国船舶重工集团公司第七二五研究所,河南洛阳471023

出　　处：《材料开发与应用》2016年第4期82-87,共6页Development and Application of Materials

摘　　要：通过双辉等离子渗金属技术对Ti2Al Nb合金进行等离子渗碳,采用扫描电镜、X射线分析和线扫描等手段来分析渗碳层的微观形貌、元素分布和表面相组成,并且利用冲蚀磨损试验来对比两者的抗冲蚀磨损性能。结果表明,等离子渗碳可以在基体表面形成一个大约30μm的渗碳层;基体显微硬度为393 HV0.1,渗碳层的硬度则达到979 HV0.1;Ti2Al Nb合金抗冲蚀磨损能力在渗碳后有了明显提升。The carburized layer was engineered onto Ti2AlNb orthorhombic alloy by a double glow discharge plasma technique. The microstrueture, elements distribution and phase composition of the carburized layer were characterized by scanning electron microscope （SEM）, X-ray diffraction （XRD） and energy dispersive spectrometer （EDS）. The micro hardness of the carhurized layer and the substrate were measured, and erosion resistance tests were carried out to test their erosion wear resistances. The re- suits indicated that a carburized layer,about 30 μm-thiek, is formed by double glow plasma earburizing. The micro hardness of the layer is 979 HV0. 1 and the substrate is 393 HV0. 1. The erosion wear resistance of TiEA1Nb alloy earburized is significantly improved.

关 键 词：Ti2Al NB O相合金 双辉等离子渗碳 抗冲蚀磨损性能 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]