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Dispersion and Preparation of Nano-AlN/AA6061 Composites by Pressure Infiltration Method

Nanomaterials play an important role in metal matrix composites (MMC). In this study, 3.0 wt.%, 6.0 wt.%, and 9.0 wt.% nano-AlN-particles-reinforced AA6061 (nano-AlN/AA6061) composites were successfully prepared by pressure infiltration technique and then hot extruded (HE) at 500 °C. The microstruct...

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Autores principales: Sun, Kai, Zhu, Ping, Zhang, Pinliang, Zhang, Qiang, Shao, Puzhen, Wang, Zhijun, Yang, Wenshu, Zhao, Dashuai, Balog, Martin, Krizik, Peter, Wu, Gaohui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9268184/
https://www.ncbi.nlm.nih.gov/pubmed/35808094
http://dx.doi.org/10.3390/nano12132258
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author Sun, Kai
Zhu, Ping
Zhang, Pinliang
Zhang, Qiang
Shao, Puzhen
Wang, Zhijun
Yang, Wenshu
Zhao, Dashuai
Balog, Martin
Krizik, Peter
Wu, Gaohui
author_facet Sun, Kai
Zhu, Ping
Zhang, Pinliang
Zhang, Qiang
Shao, Puzhen
Wang, Zhijun
Yang, Wenshu
Zhao, Dashuai
Balog, Martin
Krizik, Peter
Wu, Gaohui
author_sort Sun, Kai
collection PubMed
description Nanomaterials play an important role in metal matrix composites (MMC). In this study, 3.0 wt.%, 6.0 wt.%, and 9.0 wt.% nano-AlN-particles-reinforced AA6061 (nano-AlN/AA6061) composites were successfully prepared by pressure infiltration technique and then hot extruded (HE) at 500 °C. The microstructural characterization of the composites after HE show that the grain structure of the Al matrix is significantly refined, varying from 2 to 20 μm down to 1 to 3 μm. Nano-AlN particles in the composites are agglomerated around the matrix, and the distribution of nano-AlN is improved after HE. The interface between AA6061 and nano-AlN is clean and smooth, without interface reaction products. The 3.0 wt.% nano-AlN/AA6061 composite shows an uppermost yield and supreme tensile strength of 333 MPa and 445 MPa, respectively. The results show that the deformation procedure of the composite is beneficial to the further dispersion of nano-AlN particles and improves the strength of nano-AlN/AA6061 composite. At the same time, the strengthening mechanism active in the composites was discussed.
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spelling pubmed-92681842022-07-09 Dispersion and Preparation of Nano-AlN/AA6061 Composites by Pressure Infiltration Method Sun, Kai Zhu, Ping Zhang, Pinliang Zhang, Qiang Shao, Puzhen Wang, Zhijun Yang, Wenshu Zhao, Dashuai Balog, Martin Krizik, Peter Wu, Gaohui Nanomaterials (Basel) Article Nanomaterials play an important role in metal matrix composites (MMC). In this study, 3.0 wt.%, 6.0 wt.%, and 9.0 wt.% nano-AlN-particles-reinforced AA6061 (nano-AlN/AA6061) composites were successfully prepared by pressure infiltration technique and then hot extruded (HE) at 500 °C. The microstructural characterization of the composites after HE show that the grain structure of the Al matrix is significantly refined, varying from 2 to 20 μm down to 1 to 3 μm. Nano-AlN particles in the composites are agglomerated around the matrix, and the distribution of nano-AlN is improved after HE. The interface between AA6061 and nano-AlN is clean and smooth, without interface reaction products. The 3.0 wt.% nano-AlN/AA6061 composite shows an uppermost yield and supreme tensile strength of 333 MPa and 445 MPa, respectively. The results show that the deformation procedure of the composite is beneficial to the further dispersion of nano-AlN particles and improves the strength of nano-AlN/AA6061 composite. At the same time, the strengthening mechanism active in the composites was discussed. MDPI 2022-06-30 /pmc/articles/PMC9268184/ /pubmed/35808094 http://dx.doi.org/10.3390/nano12132258 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
Sun, Kai
Zhu, Ping
Zhang, Pinliang
Zhang, Qiang
Shao, Puzhen
Wang, Zhijun
Yang, Wenshu
Zhao, Dashuai
Balog, Martin
Krizik, Peter
Wu, Gaohui
Dispersion and Preparation of Nano-AlN/AA6061 Composites by Pressure Infiltration Method
title Dispersion and Preparation of Nano-AlN/AA6061 Composites by Pressure Infiltration Method
title_full Dispersion and Preparation of Nano-AlN/AA6061 Composites by Pressure Infiltration Method
title_fullStr Dispersion and Preparation of Nano-AlN/AA6061 Composites by Pressure Infiltration Method
title_full_unstemmed Dispersion and Preparation of Nano-AlN/AA6061 Composites by Pressure Infiltration Method
title_short Dispersion and Preparation of Nano-AlN/AA6061 Composites by Pressure Infiltration Method
title_sort dispersion and preparation of nano-aln/aa6061 composites by pressure infiltration method
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9268184/
https://www.ncbi.nlm.nih.gov/pubmed/35808094
http://dx.doi.org/10.3390/nano12132258
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