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Volume 10
Issue 2
10.3390/coatings10020187
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Article

Synchronous Shot Peening Applied on HVOF for Improvement on Wear Resistance of Fe-based Amorphous Coating

by
Zhidan Zhou
1,2,
Junchao Shang
2,
Yongxiong Chen
2,
Xiubing Liang
2,*,
Baolong Shen
1,3,* and
Zhibin Zhang
2
1
Institute of Massive Amorphous Metal Science, School of Chemistry and Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, China
2
Academy of Military Science PLA China, National Innovation Institute of Defense Technology, Beijing 100071, China
3
Jiangsu Key Laboratory for Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
*
Authors to whom correspondence should be addressed.
Coatings 2020, 10(2), 187; https://doi.org/10.3390/coatings10020187
Submission received: 6 February 2020 / Revised: 17 February 2020 / Accepted: 18 February 2020 / Published: 20 February 2020
(This article belongs to the Section Corrosion, Wear and Erosion)
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Abstract

Shot peening was used synchronously to improve Fe-based amorphous coating performance by delivering ZrO2 ceramic particles into a low-temperature region of a flame during the high velocity oxygen flame (HVOF) spray process. The coating became denser, and its hardness became higher via the new process. Moreover, the compressive residual stress was induced by shot peening. The results from the dry friction test indicated that the coating’s wear resistance was enhanced obviously. The wear mechanism of coatings with and without shot peening is an abrasive wear combined with an oxidation wear at wear test conditions of a low load and a low frequency. The coating with the best wear resistance did not have the strongest microhardness but had the highest compressive residual stress. The compressive residual stress had a significant positive influence on the wear resistance at a low frequency, while its effect is weakened at a high frequency.
Keywords: HVOF; shot peening; wear; residual stress; amorphous HVOF; shot peening; wear; residual stress; amorphous

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MDPI and ACS Style

Zhou, Z.; Shang, J.; Chen, Y.; Liang, X.; Shen, B.; Zhang, Z. Synchronous Shot Peening Applied on HVOF for Improvement on Wear Resistance of Fe-based Amorphous Coating. Coatings 2020, 10, 187. https://doi.org/10.3390/coatings10020187

AMA Style

Zhou Z, Shang J, Chen Y, Liang X, Shen B, Zhang Z. Synchronous Shot Peening Applied on HVOF for Improvement on Wear Resistance of Fe-based Amorphous Coating. Coatings. 2020; 10(2):187. https://doi.org/10.3390/coatings10020187

Chicago/Turabian Style

Zhou, Zhidan, Junchao Shang, Yongxiong Chen, Xiubing Liang, Baolong Shen, and Zhibin Zhang. 2020. "Synchronous Shot Peening Applied on HVOF for Improvement on Wear Resistance of Fe-based Amorphous Coating" Coatings 10, no. 2: 187. https://doi.org/10.3390/coatings10020187

APA Style

Zhou, Z., Shang, J., Chen, Y., Liang, X., Shen, B., & Zhang, Z. (2020). Synchronous Shot Peening Applied on HVOF for Improvement on Wear Resistance of Fe-based Amorphous Coating. Coatings, 10(2), 187. https://doi.org/10.3390/coatings10020187

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