MICROSTRUCTURE CHANGE OF LASER SURFACE REMELTING WC-Co COATING

ISSN: 1003-6326
CN: 43-1239/TG
CODEN: TNMCEW

Vol. 5 No. 4 December 1995

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Guo Jingjie¹; Li Bangseng¹; Zhao Jiuzhou¹; Jia Jun¹; Li Qingchun¹; Wu Weimin²; Isao Miki²; Hideki Ishi²

(1.Schcol of Materials Science and Engineering; Harbin Institute of Technology; Harbin 150001；
2.Harbin Coal Mine Machinery Institute Nikkei Techno-Research Company; Ltd; Japa)

Abstract: Microstructure change of laser surface remelting WC-Co coating has been studied in detail by optical microscope and SEM.The results demonstrate that with increasing laser power and scan time,microstructure change order is as follows:WC particles+Co+gasholes→WC particles+Co→WC particles+Co+dendrites→eutectic structure.

Key words: WC-Co laser surface remelting microstructures

Superintended by The China Association for Science and Technology (CAST)
Sponsored by The Nonferrous Metals Society of China (NFSOC)
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