Toughening Fe-based Amorphous Coatings by Reinforcement of Amorphous Carbon

Abstract Toughening of Fe-based amorphous coatings meanwhile maintaining a good corrosion resistance remains challenging. This work reports a novel approach to improve the toughness of a FeCrMoCBY amorphous coating through in-situ formation of amorphous carbon reinforcement without reducing the corr...

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Autores principales:	Wei Wang, Cheng Zhang, Zhi-Wei Zhang, Yi-Cheng Li, Muhammad Yasir, Hai-Tao Wang, Lin Liu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/588469360a874a5685d4e89458692351
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spelling	oai:doaj.org-article:588469360a874a5685d4e894586923512021-12-02T15:06:25ZToughening Fe-based Amorphous Coatings by Reinforcement of Amorphous Carbon10.1038/s41598-017-04504-z2045-2322https://doaj.org/article/588469360a874a5685d4e894586923512017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04504-zhttps://doaj.org/toc/2045-2322Abstract Toughening of Fe-based amorphous coatings meanwhile maintaining a good corrosion resistance remains challenging. This work reports a novel approach to improve the toughness of a FeCrMoCBY amorphous coating through in-situ formation of amorphous carbon reinforcement without reducing the corrosion resistance. The Fe-based composite coating was prepared by high velocity oxy-fuel (HVOF) thermal spraying using a pre-mixed Fe-based amorphous/nylon-11 polymer feedstock powders. The nylon-11 powders were in-situ carbonized to amorphous carbon phase during thermal spraying process, which homogeneously distributed in the amorphous matrix leading to significant enhancement of toughness of the coating. The mechanical properties, including hardness, impact resistance, bending and fatigue strength, were extensively studied by using a series of mechanical testing techniques. The results revealed that the composite coating reinforced by amorphous carbon phase exhibited enhanced impact resistance and nearly twice-higher fatigue strength than that of the monolithic amorphous coating. The enhancement of impact toughness and fatigue properties is owed to the dumping effect of the soft amorphous carbon phase, which alleviated stress concentration and decreased crack propagation driving force.Wei WangCheng ZhangZhi-Wei ZhangYi-Cheng LiMuhammad YasirHai-Tao WangLin LiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wei Wang Cheng Zhang Zhi-Wei Zhang Yi-Cheng Li Muhammad Yasir Hai-Tao Wang Lin Liu Toughening Fe-based Amorphous Coatings by Reinforcement of Amorphous Carbon
description	Abstract Toughening of Fe-based amorphous coatings meanwhile maintaining a good corrosion resistance remains challenging. This work reports a novel approach to improve the toughness of a FeCrMoCBY amorphous coating through in-situ formation of amorphous carbon reinforcement without reducing the corrosion resistance. The Fe-based composite coating was prepared by high velocity oxy-fuel (HVOF) thermal spraying using a pre-mixed Fe-based amorphous/nylon-11 polymer feedstock powders. The nylon-11 powders were in-situ carbonized to amorphous carbon phase during thermal spraying process, which homogeneously distributed in the amorphous matrix leading to significant enhancement of toughness of the coating. The mechanical properties, including hardness, impact resistance, bending and fatigue strength, were extensively studied by using a series of mechanical testing techniques. The results revealed that the composite coating reinforced by amorphous carbon phase exhibited enhanced impact resistance and nearly twice-higher fatigue strength than that of the monolithic amorphous coating. The enhancement of impact toughness and fatigue properties is owed to the dumping effect of the soft amorphous carbon phase, which alleviated stress concentration and decreased crack propagation driving force.
format	article
author	Wei Wang Cheng Zhang Zhi-Wei Zhang Yi-Cheng Li Muhammad Yasir Hai-Tao Wang Lin Liu
author_facet	Wei Wang Cheng Zhang Zhi-Wei Zhang Yi-Cheng Li Muhammad Yasir Hai-Tao Wang Lin Liu
author_sort	Wei Wang
title	Toughening Fe-based Amorphous Coatings by Reinforcement of Amorphous Carbon
title_short	Toughening Fe-based Amorphous Coatings by Reinforcement of Amorphous Carbon
title_full	Toughening Fe-based Amorphous Coatings by Reinforcement of Amorphous Carbon
title_fullStr	Toughening Fe-based Amorphous Coatings by Reinforcement of Amorphous Carbon
title_full_unstemmed	Toughening Fe-based Amorphous Coatings by Reinforcement of Amorphous Carbon
title_sort	toughening fe-based amorphous coatings by reinforcement of amorphous carbon
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/588469360a874a5685d4e89458692351
work_keys_str_mv	AT weiwang tougheningfebasedamorphouscoatingsbyreinforcementofamorphouscarbon AT chengzhang tougheningfebasedamorphouscoatingsbyreinforcementofamorphouscarbon AT zhiweizhang tougheningfebasedamorphouscoatingsbyreinforcementofamorphouscarbon AT yichengli tougheningfebasedamorphouscoatingsbyreinforcementofamorphouscarbon AT muhammadyasir tougheningfebasedamorphouscoatingsbyreinforcementofamorphouscarbon AT haitaowang tougheningfebasedamorphouscoatingsbyreinforcementofamorphouscarbon AT linliu tougheningfebasedamorphouscoatingsbyreinforcementofamorphouscarbon
_version_	1718388449257455616

Toughening Fe-based Amorphous Coatings by Reinforcement of Amorphous Carbon

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