Effect of Stress State on Plastic Behavior, Deformation Mechanism, and Texture Evolution of an Mg–Gd–Y Alloy.
Saved in:
| Title: | Effect of Stress State on Plastic Behavior, Deformation Mechanism, and Texture Evolution of an Mg–Gd–Y Alloy. |
|---|---|
| Authors: | Wu, Pengfei1,2 (AUTHOR) wpf1226268550@163.com, Lou, Yanshan2 (AUTHOR) |
| Source: | Metallurgical & Materials Transactions. Part A. Jul2025, Vol. 56 Issue 7, p2329-2341. 13p. |
| Subjects: | Yield stress, Crystal models, Methods engineering, Alloys, Deformations (Mechanics) |
| Abstract: | This research uncovers the plastic characteristics and underlying mechanisms in an Mg–Gd–Y alloy under a wide range of stress triaxiality conditions using crystal plasticity modeling. The study covers uniaxial tension, uniaxial compression, plane strain tension, plane strain compression, and shear. Several mechanical experiments were conducted under various uniaxial loading conditions. The material parameters of the visco-plastic self-consistent equation with the predominant twin re-orientation (VPSC-PTR) model were optimally calibrated using a developed experiment-inverse engineering method based on the measured texture. An obvious tension-compression asymmetry is observed in terms of yield stress and hardening behavior for the Mg–Gd–Y alloy. The deformation behavior predicted by the VPSC-PTR model matches the experimental result with high accuracy. As the equivalent strain increases, the slip system becomes the dominant deformation mode. The basal pole of grain rotates perpendicular to the loading direction under tension, while it reorients under compression and shear conditions. This research contributes to understanding the structure–property relationship of the Mg–Gd–Y alloy and provides valuable insight for alloy design. [ABSTRACT FROM AUTHOR] |
| Copyright of Metallurgical & Materials Transactions. Part A is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| Abstract: | This research uncovers the plastic characteristics and underlying mechanisms in an Mg–Gd–Y alloy under a wide range of stress triaxiality conditions using crystal plasticity modeling. The study covers uniaxial tension, uniaxial compression, plane strain tension, plane strain compression, and shear. Several mechanical experiments were conducted under various uniaxial loading conditions. The material parameters of the visco-plastic self-consistent equation with the predominant twin re-orientation (VPSC-PTR) model were optimally calibrated using a developed experiment-inverse engineering method based on the measured texture. An obvious tension-compression asymmetry is observed in terms of yield stress and hardening behavior for the Mg–Gd–Y alloy. The deformation behavior predicted by the VPSC-PTR model matches the experimental result with high accuracy. As the equivalent strain increases, the slip system becomes the dominant deformation mode. The basal pole of grain rotates perpendicular to the loading direction under tension, while it reorients under compression and shear conditions. This research contributes to understanding the structure–property relationship of the Mg–Gd–Y alloy and provides valuable insight for alloy design. [ABSTRACT FROM AUTHOR] |
|---|---|
| ISSN: | 10735623 |
| DOI: | 10.1007/s11661-025-07783-8 |
