Improved tensile properties of Al2O3/Al composite with in-situ generated Al2O3

Wenchao Shi; Beishun Cui; Min Tang; Dongmei Gong; Feng Xu

doi:10.1515/mt-2023-0311

Article

Improved tensile properties of Al₂O₃/Al composite with in-situ generated Al₂O₃

Wenchao Shi
Wenchao Shi, born in 1988, studied materials processing engineering at Harbin Institute of Technology from 2013 to 2016, where he obtained his doctorate. He then works as an associate professor at Institute of Industry and Equipment Technology at Hefei University of Technology since 2017.
, Beishun Cui
Beishun Cui, born in 1997, studies material science at Hefei University of Technology since 2021, where he deals with the preparation technology of composite.
, Min Tang
Min Tang, born in 2000, studies material science at Hefei University of Technology since 2022, where he deals with tensile properties of composite.
, Dongmei Gong
Dongmei Gong, born in 1978, studied mechanical engineering at Hefei University of Technology from 2006 to 2009. Afterward, she works as an associate professor at School of Mechanical and Vehicle Engineering at West Anhui University. She works for many years as the head of mechanical design and manufacture department.
and Feng Xu
Feng Xu, born in 1978, studied materials processing engineering at Hefei University of Technology from 2005 to 2011, where he obtained his doctorate. Afterward, he works as a professor at School of Mechanical and Vehicle Engineering at West Anhui University since 2012, where he also works as assistant dean.

Published/Copyright: January 24, 2024

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From the journal Materials Testing Volume 66 Issue 3

Abstract

In order to obtain a Al₂O₃/Al composite with high strength, the Al₂O₃ generated in situ is served as reinforcement. The ball milling is used to flake pure Al powders. The Al₂O₃/Al composite with flaked Al powders is obtained by vacuum hot pressing sintering. The effect of the flaked Al powders on the distribution of Al₂O₃ generated in situ is studied. The hardness and tensile properties of Al₂O₃/Al composite are studied. The results show that the dehydration temperatures of boric acid in powder mixtures with the flaked Al powders and with the spherical Al powders are 119 °C and 128 °C, respectively. During sintering stage, the Al₂O₃ is generated in situ. Compared with the Al₂O₃/Al composites with the spherical Al powders, more Al₂O₃ are generated in Al₂O₃/Al composites with the flaked Al powders. The hardness and ultimate tensile strength of Al₂O₃/Al composite are higher than those of pure Al alloy.

Keywords: aluminum matrix composite; in situ ; tensile property; reinforcement; ball milling

Corresponding author: Wenchao Shi, Hefei University of Technology, Hefei, 230009, China, E-mail: shiwenchaohfut@hfut.edu.cn

Funding source: Anhui Natural Science Foundation

Award Identifier / Grant number: 2308085ME164

Funding source: National Natural Science Foundation of China

Award Identifier / Grant number: 51805134

Funding source: Anhui Provincial Development and Reform Commission

Award Identifier / Grant number: JZ2022AFKJ0032

Funding source: Open Fund of Anhui Undergrowth Crop Intelligent Equipment Engineering Research Center

Award Identifier / Grant number: AUCIEERC-2022-08

About the authors

Wenchao Shi

Wenchao Shi, born in 1988, studied materials processing engineering at Harbin Institute of Technology from 2013 to 2016, where he obtained his doctorate. He then works as an associate professor at Institute of Industry and Equipment Technology at Hefei University of Technology since 2017.

Beishun Cui

Beishun Cui, born in 1997, studies material science at Hefei University of Technology since 2021, where he deals with the preparation technology of composite.

Min Tang

Min Tang, born in 2000, studies material science at Hefei University of Technology since 2022, where he deals with tensile properties of composite.

Dongmei Gong

Dongmei Gong, born in 1978, studied mechanical engineering at Hefei University of Technology from 2006 to 2009. Afterward, she works as an associate professor at School of Mechanical and Vehicle Engineering at West Anhui University. She works for many years as the head of mechanical design and manufacture department.

Feng Xu

Feng Xu, born in 1978, studied materials processing engineering at Hefei University of Technology from 2005 to 2011, where he obtained his doctorate. Afterward, he works as a professor at School of Mechanical and Vehicle Engineering at West Anhui University since 2012, where he also works as assistant dean.

Research ethics: Not applicable.
Author contributions: The author has accepted responsibility for the entire content of this manuscript and approved submission.
Competing interests: The authors declare that there is no conflict of interest.
Research funding: This work was supported by Anhui Natural Science Foundation (2308085ME164), National Natural Science Foundation of China (51805134), Anhui Provincial Development and Reform Commission (JZ2022AFKJ0032), and the Open Fund of Anhui Undergrowth Crop Intelligent Equipment Engineering Research Center (AUCIEERC-2022-08).
Data availability: Data will be made available on request.

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Published Online: 2024-01-24

Published in Print: 2024-03-25

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https://doi.org/10.1515/mt-2023-0311

Keywords for this article

aluminum matrix composite; in situ; tensile property; reinforcement; ball milling