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Crystals
Special Issues
Structural and Mechanical Properties of Novel Mg Alloys
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Structural and Mechanical Properties of Novel Mg Alloys

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Crystalline Metals and Alloys".

Deadline for manuscript submissions: 10 July 2025 | Viewed by 1317

Special Issue Editors

Dr. Lei Xiao

E-Mail Website
Guest Editor
School of Material Science and Engineering, Fuzhou University, Fuzhou, China
Interests: microstructural characterizations and texture design; deformation and recrystallization mechanisms; microstructural and property control; additive manufacturing
Dr. Xinkai Ma

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
Interests: static/dynamic mechanical behavior; martensitic transformation; gradient/heterogeneous structure; multiscale mechanical properties

Special Issue Information

Dear Colleagues,

Magnesium and its alloys, due to their high specific strength, are very promising for future structural applications pertaining to the aerospace, transportation, and energy sectors. However, the mechanical properties of industrial Mg alloys are relatively low, so it is necessary to develop novel Mg alloys with high performance.

Therefore, this Special Issue, titled “Structural and Mechanical Properties of Novel Mg Alloys”, will collect papers that focus on the current status of new developments in Mg alloys. Specifically, we welcome papers related to the following aspects: preparation techniques employed in the development of novel Mg alloys, microstructural and property control in Mg alloys, deformation and recrystallization in Mg alloys, simulations of microstructure, and mechanical performance.

We expect this Special Issue to provide readers with some perspectives on the latest progress in the developments and applications of novel Mg alloys, as well as to extend their use in various applications.

Dr. Lei Xiao
Dr. Xinkai Ma
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Crystals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2100 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • As-cast and wrought Mg alloys
  • additive manufacturing of Mg alloys
  • microstructure–property characterizations
  • simulation and modeling
  • structure design
  • alloy development
  • strengthening and toughening mechanisms

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

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Research

17 pages, 15714 KiB  
Article
Effect of Loading Direction on Tensile-Compressive Mechanical Behaviors of Mg-5Zn-2Gd-0.2Zr Alloy with Heterogeneous Grains
by Jieming Chen, Lei Xiao, Xuefang Wang, Zhuo Li, Chen Wang, Bingshu Wang, Junfeng Chen, Pan Liu and Xinyao Zhang
Crystals 2024, 14(10), 908; https://doi.org/10.3390/cryst14100908 - 19 Oct 2024
Viewed by 1058
Abstract
The tension-compression yield asymmetry caused by the strengthening of Mg-Zn-Gd-Zr alloy due to extrusion deformation is an important issue that must be addressed in its application. In this study, the effects of loading direction on the tensile and compressive mechanical behaviors of Mg-5Zn-2Gd-0.2Zr [...] Read more.
The tension-compression yield asymmetry caused by the strengthening of Mg-Zn-Gd-Zr alloy due to extrusion deformation is an important issue that must be addressed in its application. In this study, the effects of loading direction on the tensile and compressive mechanical behaviors of Mg-5Zn-2Gd-0.2Zr alloy were systematically investigated. As the loading angle (the angle between the loading direction and the extrusion direction) increases from 0° to 30°, 45°, 60° and 90°, the tensile yield strength decreases more significantly than the compressive yield strength. Consequently, the tension-compression yield asymmetry is gradually improved. Additionally, the ultimate compressive strength decreases more markedly than the ultimate tensile strength with the increment of the loading angle. In tensile tests conducted at 0°, 30° and 45°, two distinct stages of decreasing strain hardening rates are typically observed. For the 60° and 90° tensile tests, one unusual ascending stage of strain hardening rate is observed. For all compressive tests, three stages of strain hardening are consistently noted; however, the increment in strain hardening rate caused by {10–12} extension twinning decreases with the increasing loading angle. A model combining loading angle and Schmid factor distribution was established. The calculated results indicate that the dominant deformation modes during the yielding process also vary significantly with the loading conditions. This clarification highlights the differences in yield strength variations between tension and compression. Finally, an analysis of the plane trace and crack propagation direction near the fracture surface reveals the fracture mechanisms associated with tensile and compressive tests at different loading directions. This study promotes understanding of the mechanical behaviors of Mg-5Zn-2Gd-0.2Zr alloy under different loading directions, and helps to thoroughly elucidate the anisotropic effects of texture on the mechanical properties of magnesium alloys. Full article
(This article belongs to the Special Issue Structural and Mechanical Properties of Novel Mg Alloys)
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