Simultaneously enhancing strength and ductility of selective laser melted AlSi10Mg via introducing in-cell Al4C3 nanorods

Jie Wan; Kangan Li; Huarui Geng; Biao Chen; Jianghua Shen; Yazhou Guo; Katsuyoshi Kondoh; Abdollah Bahador; Jinshan Li

doi:10.1080/21663831.2023.2173028

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Simultaneously enhancing strength and ductility of selective laser melted AlSi10Mg via introducing in-cell Al4C3 nanorods

Original Reports | 更新时间：2026-08-19

- Simultaneously enhancing strength and ductility of selective laser melted AlSi10Mg via introducing in-cell Al4C3 nanorods
- Materials Research Letters Vol. 11, Issue 6, Pages: 422-429(2023)
- 作者机构：
  
  1. a State Key Laboratory of Solidification Processing Northwestern Polytechnical University Xi’an Shaanxi People’s Republic of China
  2. b Chongqing Innovation Center Northwestern Polytechnical University
  3. a State Key Laboratory of Solidification Processing Northwestern Polytechnical University Xi’an
  4. c School of Aeronautics Northwestern Polytechnical University
  5. d Joining and Welding Research Institute Osaka University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2023.2173028
  CLC：
- Online First：03 February 2023，
  
  Published：2023
- 稿件说明：
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Jie Wan, Kangan Li, Huarui Geng, et al. Simultaneously enhancing strength and ductility of selective laser melted AlSi10Mg via introducing in-cell Al4C3 nanorods[J]. Materials Research Letters, 2023, 11(6): 422-429.
DOI：

Jie Wan, Kangan Li, Huarui Geng, et al. Simultaneously enhancing strength and ductility of selective laser melted AlSi10Mg via introducing in-cell Al4C3 nanorods[J]. Materials Research Letters, 2023, 11(6): 422-429. DOI： 10.1080/21663831.2023.2173028.

摘要

Abstract

BSTRACTSelective laser melted (SLMed) AlSi10Mg alloys usually fail before necking during tensile tests

which results in inadequate ductility. To overcome this problem

here we introduced Al

nanorods into the primary Al cells of SLMed AlSi10Mg via in-situ chemical reaction. Tensile tests revealed that those in-cell Al

nanorods not only increased the strain-hardening ability of SLMed AlSi10Mg but also delayed the fracture beyond necking. Consequently

15% of tensile strength increase and 78% of ductility increase were achieved simultaneously. Post-tensile TEM analysis revealed that those in-cell Al

nanorods pinned and accumulated dislocations within cells and thus alleviated stress concentration along cell boundaries.

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Related Institution

a School of Physical Science and Technology Northwestern Polytechnical University

b State Key Laboratory of Solidification Processing Northwestern Polytechnical University

State Key Laboratory of Materials Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology

a Multidisciplinary Research Center – Cardinal Stefan Wyszynski University in Warsaw

a Multidisciplinary Research Center – Cardinal Stefan Wyszynski University in Warsaw Warsaw Poland

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