摘要
In recent years,a new class of metallic materials featuring heterogeneous structures has emerged.These materials consist of distinct soft and hard domains with significant differences in mechanical properties,allowing them to maintain high strength while offering superior ductility.Magnesium(Mg)alloys,renowned for their low density,high specific strength,exceptional vibration damping,and electromagnetic shielding properties,exhibit tremendous potential as lightweight and functional materials.Despite their advantageous properties,high-strength Mg alloys often suffer from limited ductility.However,the emergence of heterogeneous materials provides a fresh perspective for the development of Mg alloys with both high strength and ductility.This article provided a fundamental overview of heterostructured materials and systematically reviewed the recent research progress in the design of Mg alloys with strength-ductility balance based on heterostructure principles.The review encompassed various aspects,including preparation methods,formation mechanisms of diverse heterostructures,and mechanical properties,both within domestic and international contexts.On this basis,the article discussed the challenges encountered in the design and fabrication of heterostructured Mg alloys,as well as the urgent issues that require attention and resolution in the future.
基金
supported by Yunnan Fundamental Research Projects(No.202201BE070001-014)
Doctoral Scientific Research Foundation of Hubei University of Automotive Technology(No.BK202336)
National Natural Science Foundation of China(No.52071035)
Program for Science and Technology Innovation Team in Colleges of Hubei Province(No.T2021012)
Outstanding Young Scientific&Technological Innovation Team Plan of Colleges and Universities in Hubei Province(No.T201518 and No.T201811)
Major Science and Technology Project of Hubei Province(No.2022AAA001)
Key R&D Project of Hubei Province(No.2021BAB019)。
