离子镀Ti(N,C)耐磨镀层成分与性能研究

 用空心阴极离子镀技术,在常用的不锈钢(1Cr18Ni9Ti)基材上,镀制Ti(N,C)耐磨镀层。对镀层的成分进行了分析,讨论了镀层成分的耐磨性,显微硬度和附着力的影响。通过对Ti(N,C)镀层与TiN和TiC镀层性能的对比,肯定了Ti(N,C)复合化合物镀层具有更优越的耐磨性和附着力。

A STUDY ON THE PROPERTIES AND COMPOSITIONS OF ION-PLATED Ti(N,C)WEAR-RESISTANT COATINGS

The hot hollow cathode ion-plated Ti(N, C) films on 1Crl8Ni9Ti stainless steel have been studied in order to increase the wear-resistance of aerospace and other mechanical parts.The effects of chemical compositions of films on wear-resistance, adhesion strength and microhardness were tested. Chemical compositions of the films were investigated by surface analysis instrument. Meanwhile, wear-resistance, adhesion strength and microhardness of the films were measured with wear testing machine, scratch tester and microhardness tester.The experimental results show,1. Whatever the contents of nitrogen and carbon varied, the sum of them was(50± 3) at.%.2. The mocrohardness values of Ti (N, C) films were much higher than TiN films, and lower than TiC films. They were from HK0.525000 to 40000 MPa.3. The friction coefficient values of Ti (N, C) films were very low, the average of them was about 0.037.It was confirmed that Ti(N, C)films were superior to TiN or TiC films on wear-resistance and adhesion strength, and a new way was developed for improving the wear-resistance of stainless steel parts.