Architecting optimized heterostructure for exceptional strength-ductility synergy in Mg-Gd-Y-Zn-Mn alloy

Chenyang Ding

doi:10.1016/j.jma.2026.102237

Architecting optimized heterostructure for exceptional strength-ductility synergy in Mg-Gd-Y-Zn-Mn alloy

2026-08-08

0

OA

AI

C

Chenyang Ding

N

Ning Su

Q

Qianye Wu

Q

Qingchen Deng

Y

Yuhao Jin

X

Xiao Han

X

Xiyu Li

H

Hongyu Long

Y

Yujuan Wu *

L

Liming Peng

DOI：10.1016/j.jma.2026.102237

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Abstract

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• Extruded bimodal Mg-Gd-Y-Zn-Mn alloy achieves 372 MPa ultimate tensile strength and 17.3% elongation. • Narrow coarse grains enable uniform strain partitioning and continuous GNDs gradient near fine grain and coarse grain hetero-interfaces. • Continuous GNDs gradients sustain HDI hardening, delay microcracks, and enhance ductility.

Keywords:

Mg-Gd-Y-Zn alloy

Heterostructure

Strength-ductility synergy

HDI hardening

Architecting optimized heterostructure for exceptional strength-ductility synergy in Mg-Gd-Y-Zn-Mn alloy

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