Structure of B-modified MoSi2 coating on C103 alloy prepared through glow plasma deposition and HAPC combined method

Xiao Dong Tian, Xi Ping Guo, Zhi Ping Sun, Jiang Long Qu, Li Jie Wang

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Glow plasma deposition (GPD) and halide activate pack cementation (HAPC) methods were combined to prepare B-modified MoSi2 coatings on C103 alloy. The pure Mo layer was firstly deposited on the substrate through GPD process, and then Si and B were co-deposited into the Mo layer through HAPC process to form the B-modified MoSi2 coating. Experimental results revealed that the Mo layer exhibited metallurgical bonding with the substrate. Two typical coatings were produced through the above combined method. One consisted of the MoSi2 outer layer, the MoSi2+MoB two-phase middle layer and the Mo5Si3 inner layer, the other consisted of an outer deposits layer composed of MoSi2 matrix and MoB dispersions, and an inner diffusion layer composed of NbSi2, NbB2 and Nb5Si3 phases. The latter coating was oxidized at 1250 °C, and it has been found that the protective scale can form on the coating surface, which indicates the good oxidation resistance of such B-modified MoSi2 coating prepared through the combined method.

源语言英语
主期刊名High Performance Structural Material
编辑Yafang Han, Qiang Zhang, Bin Jiang, Bin Jiang
出版商Trans Tech Publications Ltd
249-254
页数6
ISBN(电子版)9783038353959
DOI
出版状态已出版 - 2015
活动Chinese Materials Congress, CMC 2014 - Chengdu, 中国
期限: 4 7月 20147 7月 2014

出版系列

姓名Materials Science Forum
816
ISSN(印刷版)0255-5476
ISSN(电子版)1662-9752

会议

会议Chinese Materials Congress, CMC 2014
国家/地区中国
Chengdu
时期4/07/147/07/14

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