Multi-pass scratch test behavior of modified layer formed during plasma nitriding
Multi-pass scratch test behavior of modified layer formed during plasma nitriding
复制标题
DOI：
10.1016/j.triboint.2010.02.005
复制
发表时间：
2010-08
影响因子：
6.2
通讯作者：
F. Yıldız;A. Alsaran
中科院分区：
文献类型：
--
作者：
F. Yıldız;A. Alsaran
采用不同处理参数对316L不锈钢和Ti6Al4V合金进行了等离子渗氮处理，通过多道划痕试验研究了渗氮过程中表面形成的改性层的磨损行为。并用XRD和SEM对改性层的相结构和横截面进行了表征。316L不锈钢表面只形成单一的改性层，而渗氮后的Ti6Al4V合金表面同时形成了改性层和扩散层。结果表明，316L不锈钢和Ti6Al4V合金改性层的相组织和厚度分别是影响摩擦系数和磨损率的重要参数。此外，渗氮过程中形成的扩散层通过在表面支撑改性层，使Ti6Al4V合金的耐磨性提高。
316L stainless steel and Ti6Al4V alloy were plasma nitrided at different treatment parameters, and the wear behaviors of the modified layers formed on the surface during nitriding were investigated by multi-pass scratch test. Phase structure and cross-sections of modified layers were also examined with XRD and SEM. While a single modified layer formed on surface of the 316L stainless steel, both modified and diffusion layers were observed on the surface of the Ti6Al4V alloy after nitriding. As a result, it was observed that phase structure and thickness for modified layers of 316L stainless steel and Ti6Al4V alloy, respectively, were the significant parameters for friction coefficient and wear rate. In addition, diffusion layer formed during the nitriding process caused on increase of wear resistance of Ti6Al4V alloy by supporting the modified layer on the surface.