Work

Substantial enhancement of strength and corrosion resistance in magnesium alloy via a multi-component gradient heterostructure

Year: 2025

Type: article

Abstract: The strategic design of heterogeneous structures in magnesium (Mg) alloys has demonstrated remarkable effectiveness in strength–ductility synergy, yet concurrent enhancement in corrosion resistance remains insufficiently addressed. Herein, we propose a novel gradient structure, which achieves a 509 MPa tensile strength with a tenfold reduction in corrosion rate. Excessive lattice defects may accelerate corrosion degradation in Mg alloy. Nevertheless, multi-component gradient heterostructure enables acquisition of a strengthening from heterogeneous defects while forming a corrosion-resistant surface layer through optimized precipitate morphology and distribution. Our results demonstrate a practical route to achieve attractive mechanical properties and highly corrosion resistance in Mg alloy.

Source: Materials Research Letters

DOI: 10.1080/21663831.2025.2563360

Authors: Yongsen Yu, Zhiping Guan, Junfu Chen, Jiawang Song, Pinkui Ma

Institutions: Jilin University, China Jiliang University

Language: English

Topic: Magnesium Alloys: Properties and Applications

Subfield: Biomaterials

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,459

Funders: Natural Science Foundation of Jilin Province, National Natural Science Foundation of China