An Investigation of Microstructural Evolution, Tensile Properties and Work-Hardening Behavior of Nanosized TiB<sub>2</sub>/Al-Cu-Mn Composites

The microstructure evolution, tensile properties and work-hardening behavior of AA2219 alloy reinforced by in situ nanosized TiB<sub>2</sub> particles were studied in this paper. The observation indicated an impeded recrystallization of the matrix alloy by nanosized TiB<sub>2</s...

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Main Authors: Cun Juan Xia, Lei Wang, Qing Zhang, Hao Fei Zhu, Jun Liu, Feng Guo Zhang, Zhe Chen, Hao Wei Wang
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/13/19/4250
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spelling doaj-66c9c0c17ecb49a7b7a3a4b111c448392020-11-25T03:00:07ZengMDPI AGMaterials1996-19442020-09-01134250425010.3390/ma13194250An Investigation of Microstructural Evolution, Tensile Properties and Work-Hardening Behavior of Nanosized TiB<sub>2</sub>/Al-Cu-Mn CompositesCun Juan Xia0Lei Wang1Qing Zhang2Hao Fei Zhu3Jun Liu4Feng Guo Zhang5Zhe Chen6Hao Wei Wang7State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, ChinaThe microstructure evolution, tensile properties and work-hardening behavior of AA2219 alloy reinforced by in situ nanosized TiB<sub>2</sub> particles were studied in this paper. The observation indicated an impeded recrystallization of the matrix alloy by nanosized TiB<sub>2</sub> particles, and the hybrids of nanosized TiB<sub>2</sub> particles and Al<sub>2</sub>Cu phases located at the grain boundary hindered the grain growth. Meanwhile, a large amount fiber textures of <111>//RD (Rolling direction), <110>//RD, <100>//RD <111>//ND (Normal direction), <110>//ND and <100>//ND were detected in nanosized TiB<sub>2</sub>/AA2219 composite. Tensile test results exhibited a combination of good strength and ductility of the present composite whose yield strength and tensile strength were 11.4% and 5.8% higher than those of the alloy, while its fracture strain increased slightly. Meanwhile, the correlation between this modified microstructure of nanosized TiB<sub>2</sub> particles and comprehensive mechanical properties was established. This study provides a new insight into the fabrication and strengthening behaviors of Al matrix composites reinforced by in situ nanoparticles.https://www.mdpi.com/1996-1944/13/19/4250Al matrix compositesnanosized TiB<sub>2</sub>microstructure evolutiontensile propertieswork-hardening
collection DOAJ
language English
format Article
sources DOAJ
author Cun Juan Xia
Lei Wang
Qing Zhang
Hao Fei Zhu
Jun Liu
Feng Guo Zhang
Zhe Chen
Hao Wei Wang
spellingShingle Cun Juan Xia
Lei Wang
Qing Zhang
Hao Fei Zhu
Jun Liu
Feng Guo Zhang
Zhe Chen
Hao Wei Wang
An Investigation of Microstructural Evolution, Tensile Properties and Work-Hardening Behavior of Nanosized TiB<sub>2</sub>/Al-Cu-Mn Composites
Materials
Al matrix composites
nanosized TiB<sub>2</sub>
microstructure evolution
tensile properties
work-hardening
author_facet Cun Juan Xia
Lei Wang
Qing Zhang
Hao Fei Zhu
Jun Liu
Feng Guo Zhang
Zhe Chen
Hao Wei Wang
author_sort Cun Juan Xia
title An Investigation of Microstructural Evolution, Tensile Properties and Work-Hardening Behavior of Nanosized TiB<sub>2</sub>/Al-Cu-Mn Composites
title_short An Investigation of Microstructural Evolution, Tensile Properties and Work-Hardening Behavior of Nanosized TiB<sub>2</sub>/Al-Cu-Mn Composites
title_full An Investigation of Microstructural Evolution, Tensile Properties and Work-Hardening Behavior of Nanosized TiB<sub>2</sub>/Al-Cu-Mn Composites
title_fullStr An Investigation of Microstructural Evolution, Tensile Properties and Work-Hardening Behavior of Nanosized TiB<sub>2</sub>/Al-Cu-Mn Composites
title_full_unstemmed An Investigation of Microstructural Evolution, Tensile Properties and Work-Hardening Behavior of Nanosized TiB<sub>2</sub>/Al-Cu-Mn Composites
title_sort investigation of microstructural evolution, tensile properties and work-hardening behavior of nanosized tib<sub>2</sub>/al-cu-mn composites
publisher MDPI AG
series Materials
issn 1996-1944
publishDate 2020-09-01
description The microstructure evolution, tensile properties and work-hardening behavior of AA2219 alloy reinforced by in situ nanosized TiB<sub>2</sub> particles were studied in this paper. The observation indicated an impeded recrystallization of the matrix alloy by nanosized TiB<sub>2</sub> particles, and the hybrids of nanosized TiB<sub>2</sub> particles and Al<sub>2</sub>Cu phases located at the grain boundary hindered the grain growth. Meanwhile, a large amount fiber textures of <111>//RD (Rolling direction), <110>//RD, <100>//RD <111>//ND (Normal direction), <110>//ND and <100>//ND were detected in nanosized TiB<sub>2</sub>/AA2219 composite. Tensile test results exhibited a combination of good strength and ductility of the present composite whose yield strength and tensile strength were 11.4% and 5.8% higher than those of the alloy, while its fracture strain increased slightly. Meanwhile, the correlation between this modified microstructure of nanosized TiB<sub>2</sub> particles and comprehensive mechanical properties was established. This study provides a new insight into the fabrication and strengthening behaviors of Al matrix composites reinforced by in situ nanoparticles.
topic Al matrix composites
nanosized TiB<sub>2</sub>
microstructure evolution
tensile properties
work-hardening
url https://www.mdpi.com/1996-1944/13/19/4250
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