Ti基渗Mo涂层新工艺的性能研究.pdf

Characterization of Ti substrate with new coating process of Mo permeating Wei Sun1 Yan Feng2 Dan Xie3 （1 School of Materials Science and Engineering Central South University ChangSha. P.R. China 410083 2 School of Materials Science and Engineering Central South University ChangSha. P.R. China 410083 3 School of Materials Science and Engineering Central South University ChangSha. P.R. China 410083 ） E-mail1：sunweimse@ E-mail2 ：fengyanmse@ E-mail3 ：Patriot_csu@163.com Abstract Ti substrate is coated with a new process of Mo permeating in the way of slurrying and powder packing at different temperature. The structures of coat and topographies of surface and cross section have been investigated. The distributions for Mo and Ti elements have been observed. The properties of high temperature oxidation resistance have been measured. The results show that the kind of composite material has a good potential for high temperature application. Keywords: Mo permeating; powder packing; diffusion layer 1.Introduction Metal permeating is a method of diffusing one or several kinds of metal elements into surface of accessories resulting in a metallic layer called permeating layer or diffusion layer. The character of metal permeating is that permeating layer is depended on the thermal diffusion process, which forms the compound phase by the reaction between permeating element and substrate metal. The performance of bonding is superior to the samples attained through mechanical combination, s