Metastability-assisted fatigue behavior in a friction stir processed dual-phase high entropy alloy

K. Liu; S. S. Nene; M. Frank; S. Sinha; R. S. Mishra

doi:10.1080/21663831.2018.1523240

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Metastability-assisted fatigue behavior in a friction stir processed dual-phase high entropy alloy

Original Report | 更新时间：2026-08-19

- Metastability-assisted fatigue behavior in a friction stir processed dual-phase high entropy alloy
- Materials Research Letters Vol. 6, Issue 11, Pages: 613-619(2018)
- 作者机构：
  
  Center for Friction Stir Processing Department of Materials Science and Engineering University of North Texas Denton
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2018.1523240
  CLC：
- Online First：23 September 2018，
  
  Published：2018
- 稿件说明：
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K. Liu, S. S. Nene, M. Frank, et al. Metastability-assisted fatigue behavior in a friction stir processed dual-phase high entropy alloy[J]. Materials Research Letters, 2018, 6(11): 613-619.
DOI：

K. Liu, S. S. Nene, M. Frank, et al. Metastability-assisted fatigue behavior in a friction stir processed dual-phase high entropy alloy[J]. Materials Research Letters, 2018, 6(11): 613-619. DOI： 10.1080/21663831.2018.1523240.

摘要

Abstract

BSTRACTMetastability-based high entropy alloy design opens a new strategic path for designing high-strength materials. However

high strength is always coupled with poor damage tolerance under cyclic loading conditions (fatigue). To overcome this drawback

here we present grain-refined Fe

exhibiting significantly high fatigue strength as compared with leading transformation induced plasticity steels upon friction stir processing. The enhanced fatigue behavior is attributed to the metastability-promoted

→

transformation that caused local variation in work-hardening activity near the crack tip

and subsequent crack branching. Thus

decreased

phase stability assisted not only in attaining strength but also in making the alloy fatigue-resistant.

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Related Institution

c PSL Research University Chimie ParisTech CNRS Institut de Recherche de Chimie Paris

b Institute of High Pressure Physics Polish Academy of Sciences

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

a Multidisciplinary Research Center – Cardinal Stefan Wyszynski University in Warsaw

b Department of Mechanical Engineering University of North Texas Denton

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