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Proceedings Paper

Behavior characteristics of particle phases in laser cladding WC-TiC-TaC/Co-based ceramic-metal composite coating
Author(s): Zhongke Wang; Qiguang Zheng; Desheng Xu; Zengyi Tao; Dafu Li; Tao Wang; Jianhui Gu
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Paper Abstract

Investigation into the behavior characteristics of particle phases in laser cladding WC-TiC-TaC/Co based ceramic-metal composite coating suggested that TiC particles had exhibited a continuous increase in amount from the bottom to the top of clad layer, and partial TiC particles gathered and became large. Partial WC and TaC particles exhibited smashing phenomenon (heat damage), and the degree of heat damage of both WC and TaC particles was much more serious than that of TiC particles. Experimental results also showed that there existed obviously a surrounding structure (Ti, W, Ta) C at edge of carbonitride phase TiC in clad coating. In addition, ledeburite with shape of fish-bone was generated in the toppest region of clad coating, coarser eutectic microstructures was generated in boding zone of clad coating in the liquid state solidifying process, and both of these microstructures contained W, Ti, Ta etc. elements.

Paper Details

Date Published: 8 September 1999
PDF: 5 pages
Proc. SPIE 3862, 1999 International Conference on Industrial Lasers, (8 September 1999); doi: 10.1117/12.361086
Show Author Affiliations
Zhongke Wang, Huazhong Univ. of Science and Technology (China)
Qiguang Zheng, Huazhong Univ. of Science and Technology (China)
Desheng Xu, Huazhong Univ. of Science and Technology (China)
Zengyi Tao, Huazhong Univ. of Science and Technology (China)
Dafu Li, Chinese Geological Univ. (China)
Tao Wang, Huazhong Univ. of Science and Technology (China)
Jianhui Gu, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 3862:
1999 International Conference on Industrial Lasers
Fuxi Gan; Horst Weber; Zaiguang Li; Qingming Chen, Editor(s)

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