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Research on Properties of Borocarbide in High Boron Multi-Component Alloy with Different Mo Concentrations

In this work, the microstructure, alloying element distribution, and borocarbide mechanical properties of high-boron multi-component alloy with Fe-2.0 wt.%B-0.4 wt.%C-6.0 wt.%Cr-x wt.%Mo-1.0%Al-1.0 wt.%Si-1.0 wt.%V-0.5 wt.%Mn (x = 0.0, 2.0, 4.0, 6.0, 8.0) are investigated. The theoretical calculatio...

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Autores principales: Ren, Xiangyi, Han, Lihong, Fu, Hanguang, Wang, Jianjun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8269884/
https://www.ncbi.nlm.nih.gov/pubmed/34279284
http://dx.doi.org/10.3390/ma14133709
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author Ren, Xiangyi
Han, Lihong
Fu, Hanguang
Wang, Jianjun
author_facet Ren, Xiangyi
Han, Lihong
Fu, Hanguang
Wang, Jianjun
author_sort Ren, Xiangyi
collection PubMed
description In this work, the microstructure, alloying element distribution, and borocarbide mechanical properties of high-boron multi-component alloy with Fe-2.0 wt.%B-0.4 wt.%C-6.0 wt.%Cr-x wt.%Mo-1.0%Al-1.0 wt.%Si-1.0 wt.%V-0.5 wt.%Mn (x = 0.0, 2.0, 4.0, 6.0, 8.0) are investigated. The theoretical calculation results and experiments indicate that the microstructure of high-boron multi-component alloy consists of ferrite, pearlite as a matrix and borocarbide as a hard phase. As a creative consideration, through the use of first-principles calculations, the comprehensive properties of borocarbide with different molybdenum concentrations have been predicted. The calculations of energy, state density, electron density and elastic constant of Fe(2)B crystal cell reveal that substitution of the molybdenum atom in the Fe(2)B crystal cell can remarkably improve its thermodynamic stability, bond strength, and covalent trend. For verifying the accuracy of this theoretical calculation, nano-indentation testing is carried out, the results of which indicate that the actual properties of borocarbide present favorable consistency with the theoretical calculations.
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spelling pubmed-82698842021-07-10 Research on Properties of Borocarbide in High Boron Multi-Component Alloy with Different Mo Concentrations Ren, Xiangyi Han, Lihong Fu, Hanguang Wang, Jianjun Materials (Basel) Article In this work, the microstructure, alloying element distribution, and borocarbide mechanical properties of high-boron multi-component alloy with Fe-2.0 wt.%B-0.4 wt.%C-6.0 wt.%Cr-x wt.%Mo-1.0%Al-1.0 wt.%Si-1.0 wt.%V-0.5 wt.%Mn (x = 0.0, 2.0, 4.0, 6.0, 8.0) are investigated. The theoretical calculation results and experiments indicate that the microstructure of high-boron multi-component alloy consists of ferrite, pearlite as a matrix and borocarbide as a hard phase. As a creative consideration, through the use of first-principles calculations, the comprehensive properties of borocarbide with different molybdenum concentrations have been predicted. The calculations of energy, state density, electron density and elastic constant of Fe(2)B crystal cell reveal that substitution of the molybdenum atom in the Fe(2)B crystal cell can remarkably improve its thermodynamic stability, bond strength, and covalent trend. For verifying the accuracy of this theoretical calculation, nano-indentation testing is carried out, the results of which indicate that the actual properties of borocarbide present favorable consistency with the theoretical calculations. MDPI 2021-07-02 /pmc/articles/PMC8269884/ /pubmed/34279284 http://dx.doi.org/10.3390/ma14133709 Text en © 2021 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
Ren, Xiangyi
Han, Lihong
Fu, Hanguang
Wang, Jianjun
Research on Properties of Borocarbide in High Boron Multi-Component Alloy with Different Mo Concentrations
title Research on Properties of Borocarbide in High Boron Multi-Component Alloy with Different Mo Concentrations
title_full Research on Properties of Borocarbide in High Boron Multi-Component Alloy with Different Mo Concentrations
title_fullStr Research on Properties of Borocarbide in High Boron Multi-Component Alloy with Different Mo Concentrations
title_full_unstemmed Research on Properties of Borocarbide in High Boron Multi-Component Alloy with Different Mo Concentrations
title_short Research on Properties of Borocarbide in High Boron Multi-Component Alloy with Different Mo Concentrations
title_sort research on properties of borocarbide in high boron multi-component alloy with different mo concentrations
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8269884/
https://www.ncbi.nlm.nih.gov/pubmed/34279284
http://dx.doi.org/10.3390/ma14133709
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