Synergistic regulation of mechanical and damping properties in Mg-Gd-Y-Zn-Mn alloys via extrusion at different temperatures

Journal of Materials Research and Technology 2026 Open access

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Authors: Hao Wang, Jialei Wang, Yu Yang, Gang Zhou, Chenwei Hu, Haiting Pan, Qian Li, Xiaodong Peng, Bo Jiang
DOI: 10.1016/j.jmrt.2026.03.191
Cited by: 1
References: 31

Abstract

This study overcomes the pervasive strength-damping trade-off in magnesium alloys via extrusion temperature control and aging of an Mg-8.9Gd-3.9Y-1.3Zn-0.8Mn alloy. ET450 produced a bimodal structure (3.2 μm DRX grains) with 390 MPa UTS, outperforming the fully DRXed ET480 (5.1 μm, 376 MPa). After peak aging of ET450 (ETA450), β'/γ' nanoprecipitates strengthen the alloy to 510 MPa (+30.8% UTS) through dislocation shearing. Crucially, ETA450 retained a high damping capacity (Q -1 =0.018), rivaling the un-aged ET480 (0.021). This strategy of low-temperature extrusion and aging provides a new design pathway for high-performance Mg-RE alloys.

Fields of Study & Subjects

Magnesium Alloys: Properties and Applications Aluminum Alloys Composites Properties Shape Memory Alloy Transformations

Publication details

Journal / source
Journal of Materials Research and Technology
Publisher
Elsevier BV
Volume
42
Pages
3404–3410
Publication date
1 April 2026
Language
EN