Residual stress provides significant strengthening and ductility in gradient structured materials

Mu-Xin Yang; Run-Guang Li; Ping Jiang; Fu-Ping Yuan; Yan-Dong Wang; Yun-Tian Zhu; Xiao-Lei Wu

doi:10.1080/21663831.2019.1635537

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Residual stress provides significant strengthening and ductility in gradient structured materials

Original Report | 更新时间：2026-08-19

- Residual stress provides significant strengthening and ductility in gradient structured materials
- Residual stress provides significant strengthening and ductility in gradient structured materials
- 材料研究快报（英文） 2019年7卷第11期页码：433-438
- 作者机构：
  
  1. State Key Laboratory of Nonlinear Mechanics Institute of Mechanics Chinese Academy of Sciences
  2. State Key Laboratory for Advanced Metals and Materials University Science and Technology Beijing
  3. State Key Laboratory of Nonlinear Mechanics Institute of Mechanics Chinese Academy of Sciences Beijing People’s Republic of China
  4. School of Engineering Science University of Chinese Academy of Sciences
  5. Department of Materials Science and Engineering North Carolina State University Raleigh NC USA
  6. School of Materials Science and Engineering Nanjing University of Science and Technology
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2019.1635537
  中图分类号：
- 网络首发：2019-07-05，
  
  纸质出版：2019
- 稿件说明：
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Mu-Xin Yang, Run-Guang Li, Ping Jiang, 等. Residual stress provides significant strengthening and ductility in gradient structured materials[J]. 材料研究快报（英文）, 2019,7(11):433-438.

Mu-Xin Yang, Run-Guang Li, Ping Jiang, et al. Residual stress provides significant strengthening and ductility in gradient structured materials[J]. Materials Research Letters, 2019, 7(11): 433-438.
Mu-Xin Yang, Run-Guang Li, Ping Jiang, 等. Residual stress provides significant strengthening and ductility in gradient structured materials[J]. 材料研究快报（英文）, 2019,7(11):433-438. DOI： 10.1080/21663831.2019.1635537.

Mu-Xin Yang, Run-Guang Li, Ping Jiang, et al. Residual stress provides significant strengthening and ductility in gradient structured materials[J]. Materials Research Letters, 2019, 7(11): 433-438. DOI： 10.1080/21663831.2019.1635537.

摘要

Abstract

BSTRACTResidual stress exists extensively in biological and engineering structures. Here we report that residual stress can be engineered to significantly enhance the strength and ductility of gradient materials.

In-situ

synchrotron experiments revealed that the strongest strain hardening occurred in the layer with the highest compressive residual stress in a gradient structure. This layer remained elastic longer than adjacent layers during tension

producing high hetero-deformation induced stress to increase strength and enhancing work hardening even after the disappearance of the compressive stress to increase ductility. This finding provides a new paradigm for designing gradient structures for superior mechanical properties.

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相关机构

f Elements Strategy Initiative for Structural Materials Kyoto University

a Department of Materials Science and Engineering Kyoto University Kyoto Japan

e Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education) School of Materials Science and Engineering Northeastern University

d Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education) Northeastern University

c Institute for Advanced Study Tongji University

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