摘要
利用双层辉光等离子渗金属技术在Ti6A l4V上渗铝以提高材料的摩擦磨损性能,对渗铝层的相结构和显微硬度进行了测试。采用球盘滑动磨损试验机对渗层进行摩擦磨损性能测试。结果表明:渗铝后渗层由A l3Ti和A l组成,材料的硬度值较基体Ti6A l4V有了很大的提高;材料摩擦因数和磨损体积减小,耐磨性得到提高。通过磨痕形貌分析可知,渗层磨损机制为粘着磨损。可见采用辉光等离子渗铝技术改善了材料的摩擦磨损性能。
An aluminized layer was formed on the surface of Ti6Al4V substrate by using the double glow discharge plasma surface modification process, the phase structure and micro-hardness of the layer were analyzed, also the friction and tribological behavior of the layer were investigated by a ball on disk sliding wear machine. The results indicate that the aluminized layer is composed by Al3Ti and Al and the micro-hardness of samples increases significantly; besides the wear test results show that the coefficient of friction and the wear volume decrease after aluminizing. From the wear scar we know that the wear mechanism is adhesion wear. Thus it is feasible to improve the friction and wear properties by glow discharge plasma surface modification.
出处
《表面技术》
EI
CAS
CSCD
2007年第1期5-7,共3页
Surface Technology
基金
山西省自然基金资助项目20041065
