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Tribological Behavior of Stellite 720 Coating under Block-on-Ring Wear Test

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DOI: 10.4236/msa.2012.311110    4,806 Downloads   6,699 Views   Citations

ABSTRACT

Stellite 720 is a high-carbon Co-Cr-Mo alloy, designed for severe wear/corrosion environments. This article presents a study of the Stellite 720 coating on stainless steel 304 under block-on-ring wear test. The coating is deposited through a slurry/powder metallurgy sintering process. Micro-hardness indentation test is conducted on the cross section of the coating specimen to investigate the hardness of individual phases of the coating material and the dilution effect of the substrate material on the coating layer. The tribological behavior of the coating under low and high load wear is investigated. The worn surfaces of the coating specimens are analyzed using a Philips XL30S FEG scanning electron micro- scope (SEM) with an EDAX energy dispersive X-ray (EDX) spectroscopy system. The experimental results are discussed to explore the wear mechanisms of the Stellite 720 coating under block-on-ring wear.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

R. Liu, Q. Yang and F. Gao, "Tribological Behavior of Stellite 720 Coating under Block-on-Ring Wear Test," Materials Sciences and Applications, Vol. 3 No. 11, 2012, pp. 756-762. doi: 10.4236/msa.2012.311110.

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