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Effect of Rare Earth on Microstructure and Wear Resistance of In-Situ-Synthesized Mo(2)FeB(2) Ceramics-Reinforced Fe-Based Cladding

Mo(2)FeB(2) ceramics-reinforced Fe-based cladding with various rare earth (RE) concentrations were prepared by the carbon arc surfacing process. The effects of RE content on the microstructure, phase composition, hardness and wear resistance of the cladding were systematically discussed. Meanwhile,...

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Detalles Bibliográficos
Autores principales: Jin, Jun, Sun, Junsheng, Wang, Weimin, Song, Jijun, Xu, Hu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7475869/
https://www.ncbi.nlm.nih.gov/pubmed/32824453
http://dx.doi.org/10.3390/ma13163633
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author Jin, Jun
Sun, Junsheng
Wang, Weimin
Song, Jijun
Xu, Hu
author_facet Jin, Jun
Sun, Junsheng
Wang, Weimin
Song, Jijun
Xu, Hu
author_sort Jin, Jun
collection PubMed
description Mo(2)FeB(2) ceramics-reinforced Fe-based cladding with various rare earth (RE) concentrations were prepared by the carbon arc surfacing process. The effects of RE content on the microstructure, phase composition, hardness and wear resistance of the cladding were systematically discussed. Meanwhile, the area fraction and grain size of Mo(2)FeB(2) phase were exactly measured. Moreover, the refining mechanism of rare earth Y was analyzed. Results revealed that the claddings consisted of Mo(2)FeB(2), FeCr, MoB and CrB. Adding the rare-earth Y decreased the grain sizes of Mo(2)FeB(2) phase. Furthermore, grain-refining effects of Mo(2)FeB(2) phase were significant when the RE content was 2% and hard phases evenly distributed in the cladding. In addition, the maximum microhardness value of claddings was about 1078 HV. The claddings with 2% RE contents had better wear resistance, which was equivalent to a sintered sample.
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spelling pubmed-74758692020-09-17 Effect of Rare Earth on Microstructure and Wear Resistance of In-Situ-Synthesized Mo(2)FeB(2) Ceramics-Reinforced Fe-Based Cladding Jin, Jun Sun, Junsheng Wang, Weimin Song, Jijun Xu, Hu Materials (Basel) Article Mo(2)FeB(2) ceramics-reinforced Fe-based cladding with various rare earth (RE) concentrations were prepared by the carbon arc surfacing process. The effects of RE content on the microstructure, phase composition, hardness and wear resistance of the cladding were systematically discussed. Meanwhile, the area fraction and grain size of Mo(2)FeB(2) phase were exactly measured. Moreover, the refining mechanism of rare earth Y was analyzed. Results revealed that the claddings consisted of Mo(2)FeB(2), FeCr, MoB and CrB. Adding the rare-earth Y decreased the grain sizes of Mo(2)FeB(2) phase. Furthermore, grain-refining effects of Mo(2)FeB(2) phase were significant when the RE content was 2% and hard phases evenly distributed in the cladding. In addition, the maximum microhardness value of claddings was about 1078 HV. The claddings with 2% RE contents had better wear resistance, which was equivalent to a sintered sample. MDPI 2020-08-17 /pmc/articles/PMC7475869/ /pubmed/32824453 http://dx.doi.org/10.3390/ma13163633 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Jin, Jun
Sun, Junsheng
Wang, Weimin
Song, Jijun
Xu, Hu
Effect of Rare Earth on Microstructure and Wear Resistance of In-Situ-Synthesized Mo(2)FeB(2) Ceramics-Reinforced Fe-Based Cladding
title Effect of Rare Earth on Microstructure and Wear Resistance of In-Situ-Synthesized Mo(2)FeB(2) Ceramics-Reinforced Fe-Based Cladding
title_full Effect of Rare Earth on Microstructure and Wear Resistance of In-Situ-Synthesized Mo(2)FeB(2) Ceramics-Reinforced Fe-Based Cladding
title_fullStr Effect of Rare Earth on Microstructure and Wear Resistance of In-Situ-Synthesized Mo(2)FeB(2) Ceramics-Reinforced Fe-Based Cladding
title_full_unstemmed Effect of Rare Earth on Microstructure and Wear Resistance of In-Situ-Synthesized Mo(2)FeB(2) Ceramics-Reinforced Fe-Based Cladding
title_short Effect of Rare Earth on Microstructure and Wear Resistance of In-Situ-Synthesized Mo(2)FeB(2) Ceramics-Reinforced Fe-Based Cladding
title_sort effect of rare earth on microstructure and wear resistance of in-situ-synthesized mo(2)feb(2) ceramics-reinforced fe-based cladding
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7475869/
https://www.ncbi.nlm.nih.gov/pubmed/32824453
http://dx.doi.org/10.3390/ma13163633
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