Ultrahigh Specific Strength in a Magnesium Alloy Strengthened by Spinodal Decomposition

Overview

Journal Sci Adv

Specialties Biology
Science

Date 2021 Jun 3

PMID 34078600

Citations 14

Authors

Tongzheng Xin

Yuhong Zhao

Reza Mahjoub

Jiaxi Jiang

Apurv Yadav

Keita Nomoto

Ranming Niu

Song Tang

Fan Ji

Zakaria Quadir

David Miskovic

John Daniels

Wanqiang Xu

Xiaozhou Liao

Long-Qing Chen

Koji Hagihara

Xiaoyan Li

Simon Ringer

Michael Ferry

Affiliations

Soon will be listed here.

Abstract

Strengthening of magnesium (Mg) is known to occur through dislocation accumulation, grain refinement, deformation twinning, and texture control or dislocation pinning by solute atoms or nano-sized precipitates. These modes generate yield strengths comparable to other engineering alloys such as certain grades of aluminum but below that of high-strength aluminum and titanium alloys and steels. Here, we report a spinodal strengthened ultralightweight Mg alloy with specific yield strengths surpassing almost every other engineering alloy. We provide compelling morphological, chemical, structural, and thermodynamic evidence for the spinodal decomposition and show that the lattice mismatch at the diffuse transition region between the spinodal zones and matrix is the dominating factor for enhancing yield strength in this class of alloy.

Citing Articles

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