Microstructure and Properties of TiC Coating by Vibrating Electrospark Deposition

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Protective TiC coating was produced on Cr-Zr-Cu electrode by vibrating electrospark deposition. Microstructure of the functional coating with pre-treatment (clean) and post-treatment (diffusion) were tested respectively. The deposition parameters on the structure of the substrate is discussed. The results indicate that as-deposited substrate consists of four layers. There are many micro-porous and micro-cracks in transition layer where mutual diffusion of Ti and Cu occurs, which provides atomic bonding between the coating and the substrate. Pre-treatment modifies the coating structure with small influence on its hardness whereas post-treatment modifies it and reduces its hardness and thickness. The service time of the specimens with TiC coating 2.4 times exceeds that of the uncoated ones.

Info:

Periodical:

Key Engineering Materials (Volumes 373-374)

Main Theme:

Edited by:

M.K. Lei, X.P. Zhu, K.W. Xu and B.S. Xu

Pages:

180-183

DOI:

10.4028/www.scientific.net/KEM.373-374.180

Citation:

C. Luo et al., "Microstructure and Properties of TiC Coating by Vibrating Electrospark Deposition", Key Engineering Materials, Vols. 373-374, pp. 180-183, 2008

Online since:

March 2008

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Price:

$35.00

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