Ti6Al4V钛合金表面双层辉光等离子W-Mo共渗及其腐蚀磨损性能研究  

Preparation of W-Mo Copenetrated Layer on Ti6Al4V Titanium Alloy Surface by Double Glow Discharge Technique and Its Corrosive-Wear Properties

作　　者：张云露[1] 骆心怡[1] 何斐[1] 

机构地区：[1]南京航空航天大学,江苏南京210016

出　　处：《稀有金属材料与工程》2013年第1期204-210,共7页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(51071086)

摘　　要：为了改善TC4的腐蚀磨损性能,采用双层辉光等离子表面冶金技术对Ti6Al4V钛合金进行W-Mo共渗,并对其腐蚀磨损性能进行研究。结果表明:在Ti6Al4V钛合金表面W-Mo共渗可形成均匀的、由沉积层和扩散层构成的W-Mo改性层;该改性层与Ti6Al4V钛合金基体相比,在空气中,5%H2SO4(质量分数)溶液和5%NaCl(质量分数)溶液中的摩擦系数均有所降低,磨损形貌得到改善,在5%H2SO4和5%NaCl溶液中的磨损量更是显著减小。结果表明,在Ti6Al4V钛合金表面W-Mo共渗可显著提高其耐腐蚀磨损性能。To improve the corrosive-wear resistance of the Ti6A14V titanium alloy, W-Mo co-penetrated layer was prepared on Ti6AI4V titanium alloy surface by double glow discharge technique. The corrosive-wear properties of the co-penetrated layer were investigated. The results show that W-Mo co-penetrated layer combined well with the substrate, and the layer was composed of deposited layer, transition layer and diffused layer. Compared with Ti6AI4V substrate, the alloying layer exhibited a lower friction coefficient, improved wear morphology and an obviously decreased wearing volume in 5wt%NaCl and 5wt% H2SO4 solutions. All these indicate that W-Mo co-penetrated layer can enhance the corrosive-wear resistance of the Ti6A14V titanium alloy.

关 键 词：双层辉光离子表面技术 TI6AL4V钛合金 W-Mo共渗 腐蚀磨损性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]