Corrosion and Mechanical Performance of Magnesium 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 2024 | Viewed by 4843

Special Issue Editors


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Guest Editor
Functional Magnesium Materials, Institute of Metallic Biomaterials, Helmholtz-Zentrum Hereon GmbH, Geesthacht, Germany
Interests: alloy and process development for magnesium; resorbable and biodegradable magnesium alloys; magnesium alloys for lightweight applications; material characteristics; mechanical properties; corrosion/degradation; microstructure development; casting with solidification; heat treatment and phase transformations; extrusion as well as wire drawing in relation to recrystallisation, microstructure, and texture development; sintering
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Guest Editor
School of Mechanical and Materials Engineering, University College Dublin, Dublin, Ireland
Interests: solid-state phase transformations; fatigue/creep deformation; biomedical alloys (titanium, magnesium, nitinol); additive manufacturing; lightweight alloy design/processing; nanostructural characterization
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Functional Magnesium Materials, Institute of Metallic Biomaterials, Helmholtz-Zentrum Hereon GmbH, Geesthacht, Germany & Leuphana University Lüneburg, Institute of Product Technology and Systems, Lüneburg, Germany
Interests: magnesium; solidification; in situ synchrotron radiation investigations; biomaterial; alloy development; properties

Special Issue Information

Dear Colleagues,

Magnesium and its alloys can be used in a wide range of applications, from lightweight structures to medical implants, but there are always concerns about resistance to corrosion. These concerns are legitimate when it comes to impure magnesium, the wrong alloys or the wrong service condition of the materials. It is therefore important to understand the interactions between the microstructure of magnesium alloys and how this affects the property profile in relation to the corrosion properties. This is particularly significant in the use of magnesium-based materials for medical applications where dissolution is considered desirable. There is also a significant difference here, usually speaking of the desired targeted degradation rates for the degradable implants rather than undesirable corrosion rates for structural applications. In the case of structural applications for lightweight construction, a greater number of components are coated in order to increase the service life for performance and sustainability reasons. Cleaning and coating are also important for applications in medical technology. Therefore, the aim of this Special Issue is to understand the complex relationships to enable the development of a more targeted and sustainable alloy processing, cleaning and coating. In addition to the classical empirical research and development methods, modelling and simulation approaches are also very welcome. These more theoretical approaches help develop a sustainable acceleration in material development and lead to a deeper understanding of the interactions. Therefore, the Guest Editors welcome all contributions that add knowledge to this thematic field.

We look forward to receiving your submissions.

Dr. Björn Wiese
Dr. Mert Celikin
Prof. Dr. Norbert Hort
Guest Editors

Manuscript Submission Information

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Keywords

  • mg alloys
  • magnesium alloys
  • mg-based materials
  • processing
  • microstructure
  • precipitation
  • mechanical properties
  • corrosion
  • coating
  • degradation
  • modelling
  • simulation

Published Papers (2 papers)

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Research

12 pages, 3960 KiB  
Article
Investigations of Electrochemical Characteristics of Mg-Al-Ca Alloys
by Ján Sovík, Branislav Hadzima, Nikolaus Peter Papenberg, Aurel Ramon Arnoldt and Stefan Gneiger
Crystals 2023, 13(12), 1684; https://doi.org/10.3390/cryst13121684 - 14 Dec 2023
Viewed by 3600
Abstract
Magnesium alloys possess a high strength-to-density ratio, thereby increasingly being utilized as lightweight structural materials in a range of industrial applications. Nevertheless, to compete with established materials like aluminum alloys, it is essential to understand the corrosion behavior of Mg and its alloys, [...] Read more.
Magnesium alloys possess a high strength-to-density ratio, thereby increasingly being utilized as lightweight structural materials in a range of industrial applications. Nevertheless, to compete with established materials like aluminum alloys, it is essential to understand the corrosion behavior of Mg and its alloys, as their high reactivity hampers industrial application. The addition of Ca to wrought Mg-Al alloys has gained attention for its ability to improve mechanical properties while also enhancing processing behavior. However, the wide range of alloy compositions within the class of Mg-Al-Ca alloys results in a variety of different corrosion properties. Consequently, this study contributes by investigating the corrosion behavior of two Mg-Al-Ca alloys, highlighting the influence of chemical composition and microstructure. Full article
(This article belongs to the Special Issue Corrosion and Mechanical Performance of Magnesium Alloys)
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16 pages, 6413 KiB  
Article
Temperature Effect on the Deformation Behavior in Nanocrystalline Magnesium under Compression: An Atomistic Study
by Cheng Zhang, Chun Xu, Yu Li, Binjun Wang and Yanhui Guo
Crystals 2023, 13(10), 1479; https://doi.org/10.3390/cryst13101479 - 11 Oct 2023
Viewed by 877
Abstract
The classic molecular dynamics (MD) simulation approach has been used to investigate the microstructure change in polycrystalline magnesium (Mg) during compressive deformation at various temperatures. At low temperatures, there exists a competition between the sliding of Shockley partial dislocation (SPD) and perfect <a> [...] Read more.
The classic molecular dynamics (MD) simulation approach has been used to investigate the microstructure change in polycrystalline magnesium (Mg) during compressive deformation at various temperatures. At low temperatures, there exists a competition between the sliding of Shockley partial dislocation (SPD) and perfect <a> dislocation. Abundant dislocation behaviors such as dislocation bundle and double cross slipping are observed. With a temperature increase, the dislocation sliding is hindered by the newly formed grain boundaries (GBs). The grain reorientation should be the compensatory mechanism for plastic deformation at high temperatures. Furthermore, dynamic recrystallization (DRX) is found at the highest temperature investigated. For all the temperature cases studied, twinning is unsensitive against applied compressive stress. The results of this work may help to understand the temperature effect on the mechanism in polycrystalline Mg under compressive deformation. Full article
(This article belongs to the Special Issue Corrosion and Mechanical Performance of Magnesium Alloys)
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