Enhanced strength and ductility of metal composites with intragranularly dispersed reinforcements by additive manufacturing

Bingkun Zou; Lei Wang; Yanming Zhang; Yang Liu; Qiubao Ouyang; Shenbao Jin; Di Zhang; Wentao Yan; Zan Li

doi:10.1080/21663831.2022.2153630

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Enhanced strength and ductility of metal composites with intragranularly dispersed reinforcements by additive manufacturing

Original Reports | 更新时间：2026-08-19

- Enhanced strength and ductility of metal composites with intragranularly dispersed reinforcements by additive manufacturing
- Enhanced strength and ductility of metal composites with intragranularly dispersed reinforcements by additive manufacturing
- 材料研究快报（英文） 2023年11卷第5期页码：360-366
- 作者机构：
  
  1. a State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University
  2. b Collaborative Innovation Center of Biomedical Functional Materials and Key Laboratory of Biofunctional Materials of Jiangsu Province School of Chemistry and Materials Science Nanjing Normal University
  3. c Department of Mechanical Engineering National University of Singapore
  4. d School of Material Science and Engineering Gleiter Institute of Nanoscience Nanjing University of Science and Technology
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2022.2153630
  中图分类号：
- 网络首发：2022-12-07，
  
  纸质出版：2023
- 稿件说明：
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Bingkun Zou, Lei Wang, Yanming Zhang, 等. Enhanced strength and ductility of metal composites with intragranularly dispersed reinforcements by additive manufacturing[J]. 材料研究快报（英文）, 2023,11(5):360-366.

Bingkun Zou, Lei Wang, Yanming Zhang, et al. Enhanced strength and ductility of metal composites with intragranularly dispersed reinforcements by additive manufacturing[J]. Materials Research Letters, 2023, 11(5): 360-366.
Bingkun Zou, Lei Wang, Yanming Zhang, 等. Enhanced strength and ductility of metal composites with intragranularly dispersed reinforcements by additive manufacturing[J]. 材料研究快报（英文）, 2023,11(5):360-366. DOI： 10.1080/21663831.2022.2153630.

Bingkun Zou, Lei Wang, Yanming Zhang, et al. Enhanced strength and ductility of metal composites with intragranularly dispersed reinforcements by additive manufacturing[J]. Materials Research Letters, 2023, 11(5): 360-366. DOI： 10.1080/21663831.2022.2153630.

摘要

Abstract

Reinforcements in metal composites are usually dispersed at grain boundaries. We here show that the rapid solidification during laser additive manufacturing enables the spontaneous engulfment of reinforcing particles inside aluminum grains

which helps to decouple the stress concentration induced by grain boundaries and reinforcements. The additively manufactured TiB

-Al composite possesses 30% increase in tensile strength and nearly tripled ductility as compared with composite obtained by the traditional method. Our experimental investigations indicate that the intragranular dispersion of particles not only inhibits crack nucleation but also promotes strain hardening

leading to the remarkably enhanced mechanical properties.

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相关机构

a School of Materials Science and Engineering Dongguan University of Technology Dongguan People’s Republic of China

b School of Materials Science and Engineering Hubei University of Automotive Technology

a School of Materials Science and Engineering Dongguan University of Technology

c Key Laboratory of Automobile Materials (Ministry of Education) School of Materials Science and Engineering Jilin University

a Erich Schmid Institute of Materials Science Austrian Academy of Sciences

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