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Article

Study on Wear Resistance and Corrosion Resistance of HVOF Surface Coating Refabricate for Hydraulic Support Column

State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan Research Institute of Materials Protection, Wuhan 430030, China
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Author to whom correspondence should be addressed.
Coatings 2021, 11(12), 1457; https://doi.org/10.3390/coatings11121457
Submission received: 6 November 2021 / Revised: 23 November 2021 / Accepted: 24 November 2021 / Published: 27 November 2021
(This article belongs to the Special Issue Environmental Corrosion of Metals and Its Prevention)

Abstract

The hydraulic support column bears loading and makes reciprocating motion ceaselessly for extended periods, so its service life is far shorter than that of the overall hydraulic support. This paper offers a comparative study on the surface coating of hydraulic support columns with hard chrome plating and high-velocity oxygen fuel (HVOF) thermal spraying refabricating to analyze the impact of different refabricating processes on the microstructure, hardness, corrosion resistance, and wear resistance of the coating (plating). The result shows that the structure of the HVOF coating is uniformly compact, and the HVOF WC10Co4Cr coating has better wear resistance, more than four times that of hard chrome plating. In the neutral salt spray test, the HVOF Ni60 coating shows rustiness at 720 h of the test, which suggests its corrosion resistance is nearly five times that of hard chrome plating. Hence, under the harsh corrosive wear environment, the refabricating HVOF Ni60 is a more suitable replacement for the hydraulic support column coating than the hard chrome plating. Thus, the HVOF Ni60 coating could be an effective replacement for hard chrome plating.
Keywords: hydraulic support column; electroplating hard chromium; HVOF; corrosion resistance; wear resistance hydraulic support column; electroplating hard chromium; HVOF; corrosion resistance; wear resistance

Share and Cite

MDPI and ACS Style

Wu, M.; Pan, L.; Duan, H.; Wan, C.; Yang, T.; Gao, M.; Yu, S. Study on Wear Resistance and Corrosion Resistance of HVOF Surface Coating Refabricate for Hydraulic Support Column. Coatings 2021, 11, 1457. https://doi.org/10.3390/coatings11121457

AMA Style

Wu M, Pan L, Duan H, Wan C, Yang T, Gao M, Yu S. Study on Wear Resistance and Corrosion Resistance of HVOF Surface Coating Refabricate for Hydraulic Support Column. Coatings. 2021; 11(12):1457. https://doi.org/10.3390/coatings11121457

Chicago/Turabian Style

Wu, Mian, Lin Pan, Haitao Duan, Changxin Wan, Tian Yang, Mingchuan Gao, and Siliang Yu. 2021. "Study on Wear Resistance and Corrosion Resistance of HVOF Surface Coating Refabricate for Hydraulic Support Column" Coatings 11, no. 12: 1457. https://doi.org/10.3390/coatings11121457

APA Style

Wu, M., Pan, L., Duan, H., Wan, C., Yang, T., Gao, M., & Yu, S. (2021). Study on Wear Resistance and Corrosion Resistance of HVOF Surface Coating Refabricate for Hydraulic Support Column. Coatings, 11(12), 1457. https://doi.org/10.3390/coatings11121457

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