Corrosion and Mechanical Properties of Mg Alloys for Biomedical Applications
A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Biobased and Biodegradable Metals".
Deadline for manuscript submissions: closed (30 November 2023) | Viewed by 3287
Special Issue Editors
2. Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
Interests: biodegradable materials; magnesium alloy; nanocomposite; corrosion behavior; surface modification; alloying; biomaterials
Interests: fatigue and fracture behavior of materials; mechanical characterization; structural integrity of conventional and innovative materials
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Compared to traditional metallic implant materials such as stainless steel, titanium alloys and cobalt chromium alloys, biodegradable metallic implants have the advantage of not requiring a second surgical procedure for implant removal. Recently, magnesium (Mg) and its alloys show great potential in cardiovascular applications where a temporary stent is required. Mg, the lightest structural metal, has attracted the attention of researchers due to its excellent machinability, recyclability, electromagnetic shielding, damping response, specific mechanical characteristics and nutritional properties. Mg has a lot of promising applications in automobiles, electronics, sports, aerospace and biomedicine components. Mg has fundamental characteristics that are similar to those of human bone, such as density and elastic modulus. Magnesium is also involved in human metabolism and acts as a cofactor for many enzymes. Moreover, the corrosion products of Mg are not toxic to humans and may even facilitate the growth and healing of human tissues. Mg alloys have a high degradation rate and H2 evolution in simulated body fluid (SBF), resulting in implant failure before the whole healing process. In addition, such an uncontrollable and rapid corrosion rate causes a major decrease in the mechanical properties of the bioimplants, resulting in premature failure. It is worth noting that monolithic Mg is not employed directly in service settings because of these limitations, and alloying elements/secondary reinforcements are required to overcome these shortcomings and improve the properties of Mg. The most popular procedure to improve corrosion resistance in Mg is alloying, composite preparation and surface modification. This Special Issue, therefore, aims to present the latest research related to the creation and development of novel Mg-based alloy/composite and/or scaffolds with controllable corrosion/degradation rates for expanding their clinical and industrial applications. It also covers alloying, composite preparation, and surface modification of Mg-based materials such as polymer coating, electrochemical deposition, chemical conversion, and micro-arc oxidation for improving magnesium properties, characteristics and corrosion behavior and mechanical properties.
Dr. Hamid Reza Bakhsheshi-Rad
Prof. Dr. Filippo Berto
Guest Editors
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Keywords
- magnesium alloy
- corrosion behavior
- mechanical property
- microstructure
- surface modification
- alloying
- biomaterials
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