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Author : Anonim
Publisher : Unknown
Page : 42 pages
File Size : 46,7 Mb
Release : 1952
Category : Magnesium
ISBN : MINN:31951D03790955B
Author : E. L. White,Frederick W. Fink
Publisher : Unknown
Page : 42 pages
File Size : 40,9 Mb
Release : 1965
Category : Magnesium alloys
ISBN : UOM:39015095155654
This memorandum deals with the corrosion protection of magnesium and magnesium alloys. The corrosion resistance of these alloys in many natural environments, while not as good as that of copper, nickel, stainless steel, and aluminum, is in the same range as that of the iron and plain carbon steels. Some type of additional corrosion protection is often necessary and, as with steel, the protective measures usually involve some type of coating system and/or surface treatments. Also, magnesium can suffer accelerated attack when coupled, in the presence of a conductive electrolyte, to most metals below it in the galvanic series. This galvanic effect complicates the problem of corrosion protection. A number of coating systems have been proposed and used satisfactorily. Depending upon the application, these coating systems include the use of conversion coatings, organic coatings, metallic coatings, and others. In addition, special designs can be employed to improve the over-all corrosion resistance of the systems. This memorandum describes many of the coating systems and design methods which are used to reduce corrosive attack on both galvanically coupled and uncoupled magnesium assembliesd (Author).
Author : G.-L. Song
Publisher : Elsevier Inc. Chapters
Page : 582 pages
File Size : 51,9 Mb
Release : 2013-02-22
Category : Technology & Engineering
ISBN : 9780128089408
Magnesium (Mg) alloys have low corrosion resistance and exhibit unusual corrosion behavior in aqueous environments. Because of this unique corrosion performance, some special corrosion prevention techniques have to be employed for Mg alloys in their applications. This chapter briefly summarizes the corrosion characteristics of Mg alloys, and also presents a strategy and methodologies to mitigate the corrosion damage of Mg alloys in applications.
Author : Viswanathan S. Saji,T. S. N. Sankara Narayanan,Xiaobo Chen
Publisher : Springer Nature
Page : 577 pages
File Size : 52,5 Mb
Release : 2022-02-01
Category : Technology & Engineering
ISBN : 9783030899769
This book covers fundamentals and recent advancements on conversion coatings for magnesium and its alloys. The contents are presented in two sections, respectively dealing with chemical and electrochemical conversion coatings. The chemical conversion coating section is further subdivided into inorganic conversion coatings, organic conversion coatings and advanced approaches/coatings. The section on electrochemical conversion coatings spans from fundamentals to state-of-the-art progress on electrochemical anodization and plasma electrolytic oxidation of magnesium and its alloys.
Author : G.-L. Song
Publisher : Elsevier Inc. Chapters
Page : 582 pages
File Size : 51,9 Mb
Release : 2013-02-22
Category : Technology & Engineering
ISBN : 9780128089552
A thin E-coating can be rapidly deposited on the surface of a Mg alloy in a cathodic E-coating bath without applying any current or potential. The selectively self-deposited coating results from the high surface alkalinity of Mg. The ‘electroless’ E-coating pre-film can offer adequate corrosion protection for Mg alloys. The stability of the film can be further improved significantly after curing. The coating can be either a temporary or permanent layer. It may also be used to pre-treat a Mg alloy surface for a normal E-coating or powder coating. Such a simple dipping step can even seal porous phosphating or anodizing coatings on Mg alloys.
Author : Guang-Ling Song
Publisher : Elsevier
Page : 584 pages
File Size : 43,7 Mb
Release : 2013-02-22
Category : Technology & Engineering
ISBN : 9780857098962
Magnesium (Mg) alloys are receiving increasing attention due to their abundance, light weight, castability, formability, mechanical properties and corrosion performance. By selecting the appropriate combination of materials, coatings and surface modifications, their corrosion resistance can be greatly enhanced. Corrosion prevention of magnesium alloys is a comprehensive guide to the effective prevention of corrosion in these important light metals. Part one discusses alloying, inhibition and prevention strategies for magnesium alloys as well as corrosion and prevention principles. Part two reviews surface treatment and conversion. Beginning with an overview of surface cleaning and pre-conditioning, the book goes on to discuss the use of surface processing and alloying, laser treatments, chemical conversion and electrochemical anodization to improve the corrosion resistance of magnesium alloys. Coatings are then the focus of part three, including varied plating techniques, cold spray coatings, gel and electroless electrophoresis coatings. Finally, the book concludes in part four with a selection of case studies investigating the application of preventative techniques for both automotive and medical applications. With its distinguished editor and international team of expert contributors, Corrosion prevention of magnesium alloys is a key reference tool for all those working with magnesium and its alloys, including scientists, engineers, metallurgists, aerospace and automotive professionals, and academics interested in this field. Chapters provide an overview of surface cleaning and pre-conditioning Examines processes to improve the corrosion resistance of magnesium alloys, including laser treatments and chemical conversion and electrochemical anodization Discusses cold spray, sol-gel and electrophoretic coatings
Author : G.S. Cole
Publisher : Elsevier Inc. Chapters
Page : 582 pages
File Size : 51,7 Mb
Release : 2013-02-22
Category : Technology & Engineering
ISBN : 9780128089576
This chapter discusses magnesium corrosion with particular reference to how magnesium automotive components, exposed to the automotive corrosion environment, can be protected and provide durable function. The chapter introduces the four types of corrosion that occur with automotive magnesium alloy components. The major focus is on the galvanic events associated with manufacturing and fastening between magnesium components and the steel/aluminum structures used in automotive construction. Examples of new applications, taken from the literature, are discussed with details of the protective modalities that were developed to ensure long-term vehicle durability.
Author : Marta Mohedano,Beatriz Mingo
Publisher : MDPI
Page : 172 pages
File Size : 46,6 Mb
Release : 2021-06-02
Category : Science
ISBN : 9783036505527
Plasma electrolytic oxidation (PEO), also known as micro-arc oxidation (MAO), functionalizes surfaces, improving the mechanical, thermal, and corrosion performance of metallic substrates, along with other tailored properties (e.g., biocompatibility, catalysis, antibacterial response, self-lubrication, etc.). The extensive field of applications of this technique ranges from structural components, in particular, in the transport sector, to more advanced fields, such as bioengineering. The present Special Issue covers the latest advances in PEO‐coated light alloys for structural (Al, Mg) and biomedical applications (Ti, Mg), with 10 research papers and 1 review from leading research groups around the world.
Author : Viswanathan S. Saji
Publisher : CRC Press
Page : 471 pages
File Size : 47,5 Mb
Release : 2023-08-22
Category : Technology & Engineering
ISBN : 9781000926354
Magnesium (Mg) and its alloys have received widespread acceptance in automobile industries and biomedical applications with substantial recent advancements made in their development, however a significant limitation remains their poor aqueous and galvanic corrosion resistance. This book covers both the fundamentals and recent advancements in two major corrosion protection strategies of magnesium and its alloys, namely, metal-matrix composites and protective coatings. Key features: Covers all aspects of metal-matrix composites and protective coatings for magnesium alloys to improve 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 Complete with case studies specific to practical applications, this book serves as a ready reference for graduate students, researchers, engineers and industry professionals in the fields of materials, corrosion science, biofouling and protective coatings.
Author : Sannakaisa Virtanen,Nick Birbilis
Publisher : The Electrochemical Society
Page : 19 pages
File Size : 54,7 Mb
Release : 2015-12-28
Category : Science
ISBN : 9781607686958
Author : G L Song
Publisher : Elsevier
Page : 665 pages
File Size : 40,7 Mb
Release : 2011-03-25
Category : Technology & Engineering
ISBN : 9780857091413
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. Provides a comprehensive account of the corrosion of magnesium alloys covering fundamentals such as the corrosion electrochemistry, activity and passivity Reviews the metallurgical effect in relation to the corrosion of magnesium alloys, including the role of micro-structure and earth-rare elements Assesses environmental influences such as atmospheric corrosion, stress corrosion cracking, creep and fatigue behaviour, and galvanic corrosion
Author : Anonim
Publisher : ASM International
Page : 426 pages
File Size : 51,6 Mb
Release : 2015-12-01
Category : Petroleum chemicals industry
ISBN : 9781627080941
Originally published in 1994, this second edition of Corrosion in the Petrochemical Industry collects peer-reviewed articles written by experts in the field of corrosion that were specifically chosen for this book because of their relevance to the petrochemical industry. This edition expands coverage of the different forms of corrosion, including the effects of metallurgical variables on the corrosion of several alloys. It discusses protection methods, including discussion of corrosion inhibitors and corrosion resistance of aluminum, magnesium, stainless steels, and nickels. It also includes a section devoted specifically to petroleum and petrochemical industry related issues.
Author : S.A. Salman,M. Okido
Publisher : Elsevier Inc. Chapters
Page : 582 pages
File Size : 43,9 Mb
Release : 2013-02-22
Category : Technology & Engineering
ISBN : 9780128089477
Anodizing is one of the most widely used surface treatments for magnesium and its alloys. In this electrolytic oxidation process, the surface of a metal is converted to an anodic oxide/hydroxide film with desirable protective, decorative or functional properties. This chapter describes the fundamentals of anodizing treatment, with an emphasis on the difference between magnesium anodizing and aluminum anodizing. The chapter then discusses the most widely used commercial anodic treatments and describes how the treatment conditions affect the corrosion resistance and the physical and mechanical properties of the anodic coating that forms on magnesium alloys. A critical review of recent patents and advances in the anodizing of magnesium is given. After reviewing the literature, the chapter explains how surface treatment can lead to more widespread use of magnesium alloys in a range of industrial applications.
Author : B.L. Jiang,Y.F. Ge
Publisher : Elsevier Inc. Chapters
Page : 582 pages
File Size : 41,6 Mb
Release : 2013-02-22
Category : Technology & Engineering
ISBN : 9780128089460
Micro-arc oxidation (MAO) is a novel and attractive surface engineering process for magnesium (Mg) alloys. In an electrolytic bath with high electric energy, the surface of a magnesium alloy can be converted into a dense and hard ceramic oxide coating. The MAO process can be used in diverse applications as a corrosion control technique. Due to its simplified pre-treatment, superior corrosion resistance performance and environmentally safe coating process, MAO technology has emerged as an important alternative to anodizing techniques in certain areas. This chapter presents a review of MAO techniques for Mg alloys from the scientific, technological and application points of view.
Author : United States. Dept. of Commerce. Office of Technical Services
Publisher : Unknown
Page : 600 pages
File Size : 40,8 Mb
Release : 2024-07-03
Category : Electronic
ISBN : UIUC:30112051068291