期刊
MATERIALS LETTERS
卷 285, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.matlet.2020.129004
关键词
TiNbZrMo; Refractory high-entropy alloy coating; Laser processing; Wear and tribology; Corrosion
资金
- Key Research and Development Program of Jiangxi Province [20171ACE50018]
- Key Research Project of Jiangxi Academy of Sciences [2017-YZD2-16]
The novel refractory high-entropy alloys coating (RHEC) synthesized on 316L by laser cladding, with composition close to TiNbZrMo, exhibits high hardness and excellent wear resistance. It also shows superior corrosion resistance compared to 316L stainless steel, with an average microhardness about twice that of the substrate.
A novel refractory high-entropy alloys coating (RHEC) with composition close to TiNbZrMo was synthesized on 316L by laser cladding. The hardness, wear resistance and corrosion resistance of the TiNbZrMo RHEC were tested, the results show that the RHEC as a single-phase solid solution with the body-centered cube (BCC) structure and displays a typical dendritic microstructure. The average microhardness of RHEC is about twice of the 316L substrate. And it also exhibits excellent wear resistance which is illustrated by the low friction coefficient and small mass-loss of the RHEC during friction-wear testing. Electrochemical studies indicated that the corrosion resistance of the RHEC in 3.5 wt% NaCl solution is significantly better than that of 316L stainless steel. (c) 2020 Published by Elsevier B.V.
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