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Erosion Resistance of Valve Core Surface Combined with WC-10Co-4Cr Coating Process under Different Pretreatments

The erosion of the valve core causes valve failure problems. Thus, a novel method to extend the erosion resistance of the valve was innovatively proposed, namely, nanosecond laser ablation micro-pits on the substrate surface and high velocity oxygen fuel (HVOF) spraying WC coating to extend the eros...

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Autores principales: Zhong, Lin, Li, Zhichao, Wang, Guorong, He, Haiyang, Wei, Gang, Zheng, Sijia, Feng, Guihong, Xie, Nana, Zhang, Rongyao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9696848/
https://www.ncbi.nlm.nih.gov/pubmed/36431626
http://dx.doi.org/10.3390/ma15228140
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author Zhong, Lin
Li, Zhichao
Wang, Guorong
He, Haiyang
Wei, Gang
Zheng, Sijia
Feng, Guihong
Xie, Nana
Zhang, Rongyao
author_facet Zhong, Lin
Li, Zhichao
Wang, Guorong
He, Haiyang
Wei, Gang
Zheng, Sijia
Feng, Guihong
Xie, Nana
Zhang, Rongyao
author_sort Zhong, Lin
collection PubMed
description The erosion of the valve core causes valve failure problems. Thus, a novel method to extend the erosion resistance of the valve was innovatively proposed, namely, nanosecond laser ablation micro-pits on the substrate surface and high velocity oxygen fuel (HVOF) spraying WC coating to extend the erosion resistance of the valve. The characterization and evaluation of the erosion resistance of the WC-sprayed coating after the pretreatment of the 3Cr13 substrate surface polishing/grit blasting/nanosecond laser ablation circular micro-dimple were conducted using the unit coupon erosion test of liquid–solid two-phase flow, followed by the test evaluation and analysis of the erosion resistance test of the WC coating after different pretreatments of the full-size valve core. Results showed that the micro-dimple pretreatment on the surface of the 3Cr13 substrate increased the contact area rate and bonding strength of the substrate and the WC coating. By taking erosion volume loss as the evaluation index, the erosion resistance of the micro-dimple pretreatment on the surface of the 3Cr13 substrate was increased by about 31.98% compared with that of the polishing pretreatment. Therefore, the new method of surface nanosecond laser texture pretreatment and HVOF-spraying WC coating can effectively improve the erosion resistance of the valve.
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spelling pubmed-96968482022-11-26 Erosion Resistance of Valve Core Surface Combined with WC-10Co-4Cr Coating Process under Different Pretreatments Zhong, Lin Li, Zhichao Wang, Guorong He, Haiyang Wei, Gang Zheng, Sijia Feng, Guihong Xie, Nana Zhang, Rongyao Materials (Basel) Article The erosion of the valve core causes valve failure problems. Thus, a novel method to extend the erosion resistance of the valve was innovatively proposed, namely, nanosecond laser ablation micro-pits on the substrate surface and high velocity oxygen fuel (HVOF) spraying WC coating to extend the erosion resistance of the valve. The characterization and evaluation of the erosion resistance of the WC-sprayed coating after the pretreatment of the 3Cr13 substrate surface polishing/grit blasting/nanosecond laser ablation circular micro-dimple were conducted using the unit coupon erosion test of liquid–solid two-phase flow, followed by the test evaluation and analysis of the erosion resistance test of the WC coating after different pretreatments of the full-size valve core. Results showed that the micro-dimple pretreatment on the surface of the 3Cr13 substrate increased the contact area rate and bonding strength of the substrate and the WC coating. By taking erosion volume loss as the evaluation index, the erosion resistance of the micro-dimple pretreatment on the surface of the 3Cr13 substrate was increased by about 31.98% compared with that of the polishing pretreatment. Therefore, the new method of surface nanosecond laser texture pretreatment and HVOF-spraying WC coating can effectively improve the erosion resistance of the valve. MDPI 2022-11-17 /pmc/articles/PMC9696848/ /pubmed/36431626 http://dx.doi.org/10.3390/ma15228140 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhong, Lin
Li, Zhichao
Wang, Guorong
He, Haiyang
Wei, Gang
Zheng, Sijia
Feng, Guihong
Xie, Nana
Zhang, Rongyao
Erosion Resistance of Valve Core Surface Combined with WC-10Co-4Cr Coating Process under Different Pretreatments
title Erosion Resistance of Valve Core Surface Combined with WC-10Co-4Cr Coating Process under Different Pretreatments
title_full Erosion Resistance of Valve Core Surface Combined with WC-10Co-4Cr Coating Process under Different Pretreatments
title_fullStr Erosion Resistance of Valve Core Surface Combined with WC-10Co-4Cr Coating Process under Different Pretreatments
title_full_unstemmed Erosion Resistance of Valve Core Surface Combined with WC-10Co-4Cr Coating Process under Different Pretreatments
title_short Erosion Resistance of Valve Core Surface Combined with WC-10Co-4Cr Coating Process under Different Pretreatments
title_sort erosion resistance of valve core surface combined with wc-10co-4cr coating process under different pretreatments
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9696848/
https://www.ncbi.nlm.nih.gov/pubmed/36431626
http://dx.doi.org/10.3390/ma15228140
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