Deformation-assisted diffusion for the enhanced kinetics of dynamic phase transformation

Lijia Zhao; Nokeun Park; Yanzhong Tian; Akinobu Shibata; Nobuhiro Tsuji

doi:10.1080/21663831.2018.1527787

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Deformation-assisted diffusion for the enhanced kinetics of dynamic phase transformation

Original report | 更新时间：2026-08-19

- Deformation-assisted diffusion for the enhanced kinetics of dynamic phase transformation
- Materials Research Letters Vol. 6, Issue 11, Pages: 641-647(2018)
- 作者机构：
  
  1. Advanced Steel Processing and Products Research Center Department of Metallurgical and Materials Engineering Colorado School of Mines Golden
  2. School of Materials Science and Engineering Yeungnam University
  3. Elements Strategy Initiative for Structural Materials (ESISM) Kyoto University Kyoto Japan
  4. Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences
  5. Department of Materials Science and Engineering Kyoto University Kyoto Japan
  6. Elements Strategy Initiative for Structural Materials (ESISM) Kyoto University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2018.1527787
  CLC：
- Online First：03 October 2018，
  
  Published：2018
- 稿件说明：
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Lijia Zhao, Nokeun Park, Yanzhong Tian, et al. Deformation-assisted diffusion for the enhanced kinetics of dynamic phase transformation[J]. Materials Research Letters, 2018, 6(11): 641-647.
DOI：

Lijia Zhao, Nokeun Park, Yanzhong Tian, et al. Deformation-assisted diffusion for the enhanced kinetics of dynamic phase transformation[J]. Materials Research Letters, 2018, 6(11): 641-647. DOI： 10.1080/21663831.2018.1527787.

摘要

Abstract

BSTRACTComparison on the kinetics of two different phase transformations

including phase transformation

after

deformation and phase transformation

during

deformation (i.e. dynamic transformation

DT)

reveals a new discovery that the transformation kinetics can be significantly enhanced in DT even under low driving forces. DT enables continuous generation of defects (e.g. dislocations) near the phase boundary

which can act as short-circuiting diffusion paths for atoms. The diffusivity of atoms is enhanced and the activation energy for the atom jump across the phase boundary is lowered under stress during DT

resulting in more pronounced grain growth as well as accelerated transformation kinetics.

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Related Institution

d Department of Materials Science and Engineering Southern University of Science and Technology

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