Study of Low-Temperature WC-Co Coating by L-Solid Phase Reaction Sintering

Abstract:

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Adopted the method of vacuum sintering liquid-solid phase reaction to prepare metal-ceramic coating, focused on the microstructure, phase composition and performance of the coating, which was prepared by two kinds of binding phase materials. The results showed that: the coating, obtained by reaction sintering of cobalt-boron alloy and self-molten Fe-based alloy composite binding phase, had compact structure. WC hard phase of the coating didn’t have phenomena of burning loss, decarbonization, agglomeration and growth. WC phase was completely circle-molten by γ-Co primary solid solution and γ-(Co, Fe, Ni) supersaturated solid solution. Newly generated granular and lath-shape hard phase evenly dispersed in binding phase, which increased the wear resistance of the coating substantially. The relative abrasion of ceramic-metal coating prepared by composite binding phase was nearly 50% lower than the one prepared by Fe-based binding phase.

Info:

Periodical:

Advanced Materials Research (Volumes 154-155)

Edited by:

Zhengyi Jiang, Xianghua Liu and Jinglong Bu

Pages:

184-190

DOI:

10.4028/www.scientific.net/AMR.154-155.184

Citation:

J. Zhao et al., "Study of Low-Temperature WC-Co Coating by L-Solid Phase Reaction Sintering", Advanced Materials Research, Vols. 154-155, pp. 184-190, 2011

Online since:

October 2010

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Price:

$35.00

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