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Balancing Strength and Ductility in Al Matrix Composites Reinforced by Few-Layered MoS(2) through In-Situ Formation of Interfacial Al(12)Mo

In this work, few-layered MoS(2) (FLM) nanosheet-reinforced Al matrix composites are developed through powder metallurgy and hot extrusion. The microstructure, mechanical properties, and strengthening mechanisms have been systematically investigated. It is found that Al(12)Mo and Al(2)S(3) can be fo...

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Autores principales: Fan, Lewen, Yang, Lizhuang, Zhao, Dongdong, Ma, Liying, He, Chunnian, He, Fang, Shi, Chunsheng, Sha, Junwei, Zhao, Naiqin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8269559/
https://www.ncbi.nlm.nih.gov/pubmed/34202145
http://dx.doi.org/10.3390/ma14133561
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author Fan, Lewen
Yang, Lizhuang
Zhao, Dongdong
Ma, Liying
He, Chunnian
He, Fang
Shi, Chunsheng
Sha, Junwei
Zhao, Naiqin
author_facet Fan, Lewen
Yang, Lizhuang
Zhao, Dongdong
Ma, Liying
He, Chunnian
He, Fang
Shi, Chunsheng
Sha, Junwei
Zhao, Naiqin
author_sort Fan, Lewen
collection PubMed
description In this work, few-layered MoS(2) (FLM) nanosheet-reinforced Al matrix composites are developed through powder metallurgy and hot extrusion. The microstructure, mechanical properties, and strengthening mechanisms have been systematically investigated. It is found that Al(12)Mo and Al(2)S(3) can be formed in-situ during the sintering process, resulting in the improvement of interfacial bonding between FLM and Al matrix. With 1.5 wt.% of FLM addition, an improved tensile strength of 234 MPa with a high elongation of 17% can be obtained. Moreover, the strengthening mechanisms are also demonstrated to be grain refinement, dislocation strengthening, and load transfer, and the calculation indicates that load transfer is the main contribution factor. This work will inspire more new designs of metal matrix composites with balanced strength and ductility.
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spelling pubmed-82695592021-07-10 Balancing Strength and Ductility in Al Matrix Composites Reinforced by Few-Layered MoS(2) through In-Situ Formation of Interfacial Al(12)Mo Fan, Lewen Yang, Lizhuang Zhao, Dongdong Ma, Liying He, Chunnian He, Fang Shi, Chunsheng Sha, Junwei Zhao, Naiqin Materials (Basel) Article In this work, few-layered MoS(2) (FLM) nanosheet-reinforced Al matrix composites are developed through powder metallurgy and hot extrusion. The microstructure, mechanical properties, and strengthening mechanisms have been systematically investigated. It is found that Al(12)Mo and Al(2)S(3) can be formed in-situ during the sintering process, resulting in the improvement of interfacial bonding between FLM and Al matrix. With 1.5 wt.% of FLM addition, an improved tensile strength of 234 MPa with a high elongation of 17% can be obtained. Moreover, the strengthening mechanisms are also demonstrated to be grain refinement, dislocation strengthening, and load transfer, and the calculation indicates that load transfer is the main contribution factor. This work will inspire more new designs of metal matrix composites with balanced strength and ductility. MDPI 2021-06-25 /pmc/articles/PMC8269559/ /pubmed/34202145 http://dx.doi.org/10.3390/ma14133561 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
Fan, Lewen
Yang, Lizhuang
Zhao, Dongdong
Ma, Liying
He, Chunnian
He, Fang
Shi, Chunsheng
Sha, Junwei
Zhao, Naiqin
Balancing Strength and Ductility in Al Matrix Composites Reinforced by Few-Layered MoS(2) through In-Situ Formation of Interfacial Al(12)Mo
title Balancing Strength and Ductility in Al Matrix Composites Reinforced by Few-Layered MoS(2) through In-Situ Formation of Interfacial Al(12)Mo
title_full Balancing Strength and Ductility in Al Matrix Composites Reinforced by Few-Layered MoS(2) through In-Situ Formation of Interfacial Al(12)Mo
title_fullStr Balancing Strength and Ductility in Al Matrix Composites Reinforced by Few-Layered MoS(2) through In-Situ Formation of Interfacial Al(12)Mo
title_full_unstemmed Balancing Strength and Ductility in Al Matrix Composites Reinforced by Few-Layered MoS(2) through In-Situ Formation of Interfacial Al(12)Mo
title_short Balancing Strength and Ductility in Al Matrix Composites Reinforced by Few-Layered MoS(2) through In-Situ Formation of Interfacial Al(12)Mo
title_sort balancing strength and ductility in al matrix composites reinforced by few-layered mos(2) through in-situ formation of interfacial al(12)mo
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8269559/
https://www.ncbi.nlm.nih.gov/pubmed/34202145
http://dx.doi.org/10.3390/ma14133561
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