Demonstrating a duplex TRIP/TWIP titanium alloy via the introduction of metastable retained β-phase

Karri Sri Naga Sesha; Kenta Yamanaka; Manami Mori; Yusuke Onuki; Shigeo Sato; Damien Fabrègue; Akihiko Chiba

doi:10.1080/21663831.2022.2096419

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Demonstrating a duplex TRIP/TWIP titanium alloy via the introduction of metastable retained β-phase

Original Reports | 更新时间：2026-08-19

- Demonstrating a duplex TRIP/TWIP titanium alloy via the introduction of metastable retained β-phase
- Materials Research Letters Vol. 10, Issue 11, Pages: 754-761(2022)
- 作者机构：
  
  1. b Department of Materials Processing Graduate School of Engineering Tohoku University
  2. a Institute for Materials Research Tohoku University
  3. a Institute for Materials Research Tohoku University Sendai Japan
  4. c Department of General Engineering National Institute of Technology Sendai College
  5. d Frontier Research Center for Applied Atomic Sciences Ibaraki University
  6. e Graduate School of Science and Engineering Ibaraki University
  7. f Université de Lyon INSA-Lyon Villeurbanne France
  8. g ELyT Max Tohoku University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2022.2096419
  CLC：
- Online First：06 July 2022，
  
  Published：2022
- 稿件说明：
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Karri Sri Naga Sesha, Kenta Yamanaka, Manami Mori, et al. Demonstrating a duplex TRIP/TWIP titanium alloy via the introduction of metastable retained β-phase[J]. Materials Research Letters, 2022, 10(11): 754-761.
DOI：

Karri Sri Naga Sesha, Kenta Yamanaka, Manami Mori, et al. Demonstrating a duplex TRIP/TWIP titanium alloy via the introduction of metastable retained β-phase[J]. Materials Research Letters, 2022, 10(11): 754-761. DOI： 10.1080/21663831.2022.2096419.

摘要

Abstract

This study demonstrates transformation-induced plasticity (TRIP) in conjunction with twinning-induced plasticity (TWIP) in α + β titanium alloys by introducing metastable retained β-phase. By annealing at 850 °C followed by water quenching

metastable retained β-phase (∼25%) was obtained in Ti–6Al–4V alloy. Stress-induced phase transformation in the retained β-phase produced orthorhombic α′′-martensite associated with (021)

′′

twinning

which significantly increased the work-hardening rate and uniform elongation. The findings reveal that the minor retained β-phase is responsible for macroscopic deformation behavior and could aid in novel alloy design that can increase work hardenability with fewer alloying elements than currently available metastable β-titanium alloys.

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