The use of magnesium alloys is increasing in a range of applications, and their popularity is growing wherever lightweight materials are needed. This book provides a comprehensive account of the corrosion of magnesium alloys. It covers not only the corrosion performances and mechanisms of Mg alloys in conventional environments, such as sodium chloride solutions, but also looks at their corrosion behaviours in special media, like engine coolants and simulated body fluids.Part one covers fundamentals such as the corrosion electrochemistry, activity and passivity of magnesium and its alloys. Part…mehr
The use of magnesium alloys is increasing in a range of applications, and their popularity is growing wherever lightweight materials are needed. This book provides a comprehensive account of the corrosion of magnesium alloys. It covers not only the corrosion performances and mechanisms of Mg alloys in conventional environments, such as sodium chloride solutions, but also looks at their corrosion behaviours in special media, like engine coolants and simulated body fluids.Part one covers fundamentals such as the corrosion electrochemistry, activity and passivity of magnesium and its alloys. Part two then considers the metallurgical effect in relation to the corrosion of magnesium alloys, including the role of micro-structure and earth-rare elements, the corrosion behaviour of magnesium-based bulk metallic glasses, and the corrosion of innovative magnesium alloys. Part three goes on to describe environmental influences on the corrosion of magnesium alloys, such as atmospheric corrosion, stress corrosion cracking, creep and fatigue behaviour, and galvanic corrosion. Finally, part four is concerned with various means of protecting magnesium alloys against corrosion through the use of aluminium electrodeposition, conversion and electrophoretic coatings, and anodisation.With its distinguished editor and team of contributors, this book is an invaluable resource for metallurgists, engineers and designers working with magnesium and its alloys, as well as professionals in the aerospace and automotive industries.
Produktdetails
Produktdetails
Woodhead Publishing Series in Metals and Surface Engineering
Guang-Ling Song is currently a Research Scientist working for General Motors Global Research and Development, USA. He is also an Adjunct Professor at the University of Queensland, Australia, known internationally for his research in the field of corrosion and corrosion protection.
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Preface
Part I: Fundamentals
Chapter 1: Corrosion electrochemistry of magnesium (Mg) and its alloys
Abstract:
1.1 Introduction
1.2 Thermodynamics
1.3 Surface film
1.4 Anodic process
1.5 Cathodic process
1.6 Corrosion mechanism and characteristic processes
Chapter 2: Activity and passivity of magnesium (Mg) and its alloys
Abstract:
2.1 Active and passive behaviors of magnesium (Mg) and its alloys
2.2 Passive properties and stability
2.3 Improvements and promising avenues of the passive behavior
2.4 Specific factors characterizing corrosion behavior
2.5 Active and passive behaviors and corrosion forms
2.6 Performance of sacrificial magnesium (Mg) and its alloys
2.7 Mechanism of corrosion of sacrificial anodes
2.8 Examples of actual and possible uses
2.9 Evaluation of the sacrificial behavior
2.10 Future trends
2.11 Acknowledgements
Part II: Metallurgical effects
Chapter 3: Corrosion of magnesium (Mg) alloys and metallurgical influence
Abstract:
3.1 Introduction
3.2 Measurement details
3.3 Second phase effect
3.4 Impurity concentration
3.5 Surface condition
3.6 Medical implant applications
3.7 Concluding remarks
3.8 Acknowledgements
Chapter 4: Role of structure and rare earth (RE) elements on the corrosion of magnesium (Mg) alloys
Abstract:
4.1 Introduction
4.2 Role of structure on the corrosion process of magnesium (Mg) alloy
4.3 Role of rare earth (RE) elements on the corrosion process of magnesium (Mg) alloy
Chapter 5: Corrosion behaviour of magnesium (Mg)-based bulk metallic glasses