Advances in Corrosion Control of Magnesium and its Alloys: Metal Matrix Composites and Protective Coatings

This book explores the fundamentals and recent advancements in two major corrosion protection strategies for magnesium and its alloys, metal-matrix composites and protective coatings, to improve their corrosion resistance, wear resistance, mechanical properties, and biocompatibility. It includes case studies and serves as a valuable resource for researchers, engineers, and industry professionals.

Format: Hardback
Length: 454 pages
Publication date: 22 August 2023
Publisher: Taylor & Francis Ltd

Magnesium (Mg) and its alloys have gained widespread acceptance in the automobile industries and biomedical applications, with significant recent advancements in their development. However, a significant limitation remains their poor aqueous and galvanic corrosion resistance. This book comprehensively covers both the fundamentals and recent advancements in two major corrosion protection strategies for magnesium and its alloys: metal-matrix composites and protective coatings.

Key features:

Comprehensive coverage of metal-matrix composites and protective coatings for magnesium alloys to enhance their corrosion resistance, wear resistance, mechanical properties, and biocompatibility.

Provides the most recent research advancements in the corrosion mitigation strategies of magnesium and its alloys.

Includes case studies specific to practical applications, making this book a valuable resource for graduate students, researchers, engineers, and industry professionals in the fields of materials, corrosion science, biofouling, and protective coatings.

The use of magnesium and its alloys in automotive and biomedical applications has witnessed substantial growth in recent years, driven by their lightweight, high strength, and excellent thermal conductivity. However, their poor aqueous and galvanic corrosion resistance remains a significant challenge. This book aims to address this issue by providing a comprehensive overview of the fundamentals and recent advancements in two key corrosion protection strategies: metal-matrix composites and protective coatings.

Metal-Matrix Composites:

Metal-matrix composites (MMCs) are a class of materials that combine two or more metallic components, such as aluminum, magnesium, or titanium, with a polymer matrix. MMCs offer several advantages over traditional alloys, including improved corrosion resistance, wear resistance, and mechanical properties. The polymer matrix can be tailored to enhance the properties of the composite material, such as its toughness, strength, and thermal conductivity.

One of the most promising applications of MMCs in the automotive industry is in the production of lightweight components. MMCs can significantly reduce the weight of vehicle parts, which in turn improves fuel efficiency, reduces emissions, and enhances vehicle performance. For example, MMCs are used in the production of engine blocks, transmission cases, and brake rotors.

Protective Coatings:

Protective coatings are another effective strategy for improving the corrosion resistance of magnesium and its alloys. These coatings are applied to the surface of the metal to form a protective barrier that prevents the penetration of corrosive agents, such as water, salt, and chemicals. Protective coatings can be classified into two main types: organic coatings and inorganic coatings.

Organic coatings, such as epoxy coatings and polyurethane coatings, are widely used in the automotive industry due to their excellent corrosion resistance, durability, and flexibility. These coatings can be applied to the surface of magnesium and its alloys using various methods, including spray painting, brush painting, and electroplating.

Inorganic coatings, such as zinc-rich coatings and chromium-based coatings, are also used in the automotive industry but offer better corrosion resistance than organic coatings. These coatings are typically applied using electroplating or thermal spraying methods.

Conclusion:

Magnesium and its alloys have significant potential in the automotive and biomedical industries, but their poor corrosion resistance remains a significant challenge. Metal-matrix composites and protective coatings are two effective strategies for improving the corrosion resistance of magnesium and its alloys. MMCs offer improved corrosion resistance, wear resistance, and mechanical properties, while protective coatings provide a protective barrier that prevents the penetration of corrosive agents.

With ongoing research and development, it is expected that the use of magnesium and its alloys will continue to grow in the automotive and biomedical industries, providing innovative solutions for lightweight and durable components.

Weight: 1025g
Dimension: 254 x 178 (mm)
ISBN-13: 9781032334684