Microstructure and Properties of TiC Coating by Vibrating Electrospark Deposition


Article Preview

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.



Key Engineering Materials (Volumes 373-374)

Main Theme:

Edited by:

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






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




[1] Yin Meiqing, Wang Min, Jiang Jingyu, et al. Research of electrode life in spot welding of galvanized steel. Electric Welding Machine, Vol. 33 (2003), pp.14-17.

[2] Dong Shijie, Shi Yaowu, Lei Yongping, et al. Studies on (TiB2+Al2O3) reinforced copper-based composite. Mat. Eng. No. 7 (2002), pp.6-11.

[3] Zhang X.H., C. Yan. In-site combustion synthesis of ultrafine TiB2 particles reforced Cu matrix composite. J. of Mat. Sci. Vol. 39 (2004), P. 4683-4685.

[4] Bai Fengmin, Lian Jinrui, Shan ping, et al. Study on electrode life test for spot welding hot dip galvanized steel by method of surface titanizing. Electric Welding Machine, Vol. 33 (2003), pp.9-11.

DOI: 10.1016/s0261-3069(03)00029-3

[5] Lian Jinrui, Wu Zhisheng, Shan ping, et al. Effect of brushing Co of electrodes on performance of spot welding process of zinc coated steel sheets. Ordnance Mat. Sci. And Eng. Vol. 25 (2002), pp.31-33.

[6] Dong Shijie, Zhou Norman. Effect of TiC coating on electrode tip surface on electrode degradation during resistance spot welding zinc coated steel. The Chinese J. of Nonferrous Metals. Vol. 15 (2005), pp.184-191.

[7] Luo Cheng, Dong Shijie, Xiong Xiang, et al. Influence of electrospark deposition processes on thickness of TiC deposition coating. Welding. Vol. 36 (2007), pp.46-49.

[8] Cheng Changkun, Li Huaijun, Xie Zhixiong, et al. Study of the parameters coating cermet TiC on the electrodes of RSW by vibrating electric sparking. J. of Hubei Auto. Industries Institute. Vol. 18 (2004), pp.30-34.

In order to see related information, you need to Login.