Microtwinning avalanches induced the Protevin–Le Châtelier effect in PWA1483 at 750 °C

Jiao Li; Peng Zhang; Jiaming Bai; Peng Liu; Yong Yuan; Xiaolong Song; Yuefeng Gu

doi:10.1080/21663831.2024.2393903

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Microtwinning avalanches induced the Protevin–Le Châtelier effect in PWA1483 at 750 °C

Original Report | 更新时间：2026-08-19

- Microtwinning avalanches induced the Protevin–Le Châtelier effect in PWA1483 at 750 °C
- Materials Research Letters Vol. 12, Issue 11, Pages: 834-842(2024)
- 作者机构：
  
  1. a Instrumental Analysis Center Xi’an Jiaotong University
  2. b National Engineering Research Center of Integration and Maintenance of Clean and Low-carbon Thermal Power Generation System Xi’an Thermal Power Research Institute Co. Ltd.
  3. c Xi'an Sino-Euro Materials Technologies Co. Ltd
  4. d State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong University
  5. e School of Materials Science and Engineering Zhejiang University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2024.2393903
  CLC：
- Online First：22 August 2024，
  
  Published：2024
- 稿件说明：
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Jiao Li, Peng Zhang, Jiaming Bai, et al. Microtwinning avalanches induced the Protevin–Le Châtelier effect in PWA1483 at 750 °C[J]. Materials Research Letters, 2024, 12(11): 834-842.
DOI：

Jiao Li, Peng Zhang, Jiaming Bai, et al. Microtwinning avalanches induced the Protevin–Le Châtelier effect in PWA1483 at 750 °C[J]. Materials Research Letters, 2024, 12(11): 834-842. DOI： 10.1080/21663831.2024.2393903.

摘要

Abstract

BSTRACTThe flow behavior and deformation mechanisms of the [001]-oriented single-crystal nickel-based superalloy PWA1483 are investigated under quasi-static compressive and tensile loading conditions at 750°C. We found that the tensile yield strength is larger as compared to the compressive strength

and the serrated flow only appears on the compressive stress–strain curves. Microstructural observations uncover that stacking fault shearing and microtwinning are prone to initiate in PWA1483 during tensile deformation

and the appearance of the Protevin–Le Châtelier effect in compression derives from the abrupt frequent bursts of the two mechanisms on a mesoscale

rather than the simple occurrence of these procedures.

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Related Author

P. Zhang

J. Li

Y. Yuan

Y.F. Gu

Z.H. Gao

X.F. Gong

X. L. Song

Jiaming Bai

Related Institution

a National Engineering Research Center of Integration and Maintenance of Clean and Low-carbon Thermal Power Generation System Xi’an Thermal Power Research Institute Co. Ltd.

b Instrumental Analysis Center Xi’an Jiaotong University

c School of Materials Science and Engineering Zhejiang University

d State Key Laboratory for Long-life High Temperature Materials Dongfang Turbine Co. Ltd.

d Suzhou Laboratory

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