Thermochemical Surface Engineering of Steels

Author: Eric J. Mittemeijer
Publisher: Elsevier
ISBN: 0857096524
Format: PDF, ePub, Mobi
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Thermochemical surface engineering significantly improves the properties of steels. Edited by two of the world’s leading authorities, this important book summarises the range of techniques and their applications. It covers nitriding, nitrocarburizing and carburizing. There are also chapters on low temperature techniques as well as boriding, sheradizing, aluminizing, chromizing, thermo-reactive deposition and diffusion. Reviews the fundamentals of surface treatments and current performance of improved materials Covers nitriding, nitrocarburizing and carburizing of iron and iron carbon alloys Examines how different thermochemical surface engineering methods can help against corrosion

Thermochemical Surface Engineering of Steels

Author:
Publisher:
ISBN: 9781642241907
Format: PDF, Docs
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Surface engineering is a multidisciplinary action intended to identify the properties of the surfaces of engineering mechanism in order to improve their function and serviceability. Corrosion, wear and fatigue are among the most important mechanisms that lead to materials degradation, which, eventually, leads to failure of components. Thus there is a great potential for saving resources, provided that the fundamentals of material behavior, and thus its performance including degradation, are understood, in order to define on that basis strategies to improve the intrinsic properties of materials. Carbon steel is commonly used in the industry but vulnerable to wear and corrosion in the field. Replacing it with stainless or alloy steel increases the cost significantly, and a better alternative is to improve its surface properties and lifetime using plasma immersion ion implantation.Thermochemical Surface Engineering of Steels deals with the treatment of the surface and near-surface regions of steel to allow the surface to perform functions that are distinct from those functions demanded from the bulk of the material. It deals with geometrical, optical and chemical properties of stainless steel surfaces polished by various methods. It highlights on nitriding thermochemical surface treatment used in steels and alloys to improve wear and friction properties by surface microstructure modification, while maintaining adequate substrate properties. Surface characterization and corrosion resistance of 36Cr-Ni-Mo4 Steel Coated by WC-Co cermet electrode is explained. Effect of heat treatment parameters on the mechanical and microstructure properties of low-alloy steel and effects of gas metal arc welding techniques on the mechanical properties of duplex stainless steel are discussed as well. It is hoped that this book will be of valuable for engineers and practitioners as well as for researchers and will inspire young people to donate to future growth in the field.

Introduction to Surface Engineering

Author: P. A. Dearnley
Publisher: Cambridge University Press
ISBN: 1316785084
Format: PDF, Kindle
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This highly illustrated reference work covers the three principal types of surface technologies that best protect engineering devices and products: diffusion technologies, deposition technologies, and other less commonly acknowledged surface engineering (SE) techniques. Various applications are noted throughout the text and additionally whole chapters are devoted to specific SE applications across the automotive, gas turbine engine (GTE), metal machining, and biomedical implant sectors. Along with the benefits of SE, this volume also critically examines SE's limitations. Materials degradation pathways - those which can and those which cannot be mitigated by SE - are rigorously explained. Written from a scientific, materials engineering perspective, this concise text is supported by high-quality images and photo-micrographs which show how surfaces can be engineered to overcome the limits of conventionally produced materials, even in complex or hostile operating environments. This book is a useful resource for undergraduate and postgraduate students as well as professional engineers.

Surface Hardening of Steels

Author: Joseph R. Davis
Publisher: ASM International
ISBN: 1615032509
Format: PDF, Docs
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Annotation A practical selection guide to help engineers and technicians choose the mot efficient surface hardening techniques that offer consistent and repeatable results. Emphasis is placed on characteristics such as processing temperature, case/coating thickness, bond strength, and hardness level obtained. The advantages and limitations of the various thermochemical, thermal and coating/surface modification technologies are compared

Current Trends in Boriding

Author: Michal Kulka
Publisher: Springer
ISBN: 3030067823
Format: PDF, Docs
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This book presents the most important thermochemical and physical techniques of boriding. The formation and characterization of different boride layers or boride coatings are compared in this book. The author analyzes the technological aspects of boriding processes, presenting the advantages and disadvantages of each method. The effect of the boriding techniques on the microstructure of borided materials are also indicated. The mechanism of formation of active boron atoms or ions and the phenomena during re-melting of alloying material together with the substrate are described. Special attention is devoted to powder-pack boriding, electrochemical boriding in borax, gas boriding, plasma gas or paste boriding and laser or plasma surface alloying with boron, acknowledged as the most important current methods in boriding. The thermodynamics of gas boriding is also analyzed.

Flame Hardening

Author: Hans Wilhelm Grönegress
Publisher: Springer Science & Business Media
ISBN: 3642867219
Format: PDF, ePub, Docs
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This book intended for shop use tries to familiarize the reader with the peculiari ties of a hardening method which due to its many advantages is now in use,many shops. A general knowledge of the principles of hardening and heat treating is presumed. Introduction 1. The name of the process. Flame hardening is a method derived from the old quench hardening and is used for the surface hardening of heat treatable steels. Flame hardening is so named in analogy to flame cutting as the use of a flame is a distinctive feature of this process as opposed to the use of a furnace. 2. Characteristics of flame hardening. In flame hardening the area to be 6 hardened is heated with a burner of large heat capacity (approx. 0.5 · 10 kcaljhr/ meter of flame lengths or 50,000 BTUfhr/inch of flame length) supplied with a mixture of fuel gas and oxygen. The hardening temperature is thus reached in so short a time at the surface that a heat jam is created, that is, more heat is supplied to the surface than can be dissipated to the interior of the workpiece. As the querr ehing takes place immediately after the heating the penetration of the heat to greater depth is prevented and only the outer layer subject to wear is hardened. The core of the workpiece remains unaffected by this heat treatment in cantrast to the other hardening methods where the entire piece is through heated in a furnace.

Fundamentals of Materials Science

Author: Eric J. Mittemeijer
Publisher: Springer Science & Business Media
ISBN: 9783642105005
Format: PDF, Mobi
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This book offers a strong introduction to fundamental concepts on the basis of materials science. It conveys the central issue of materials science, distinguishing it from merely solid state physics and solid state chemistry, namely to develop models that provide the relation between the microstructure and the properties. The book is meant to be used in the beginning of a materials science and engineering study as well as throughout an entire undergraduate and even graduate study as a solid background against which specialized texts can be studied. Topics dealt with are "crystallography", "lattice defects", "microstructural analysis", "phase equilibria and transformations" and "mechanical strength". After the basic chapters the coverage of topics occurs to an extent surpassing what can be offered in a freshman's course. About the author Prof. Mittemeijer is one of the top scientists in materials science, whose perceptiveness and insight have led to important achievements. This book witnesses of his knowledge and panoramic overview and profound understanding of the field. He is a director of the Max Planck Institute for Metals Research in Stuttgart.

Moderne Beschichtungsverfahren

Author: Friedrich-Wilhelm Bach
Publisher: John Wiley & Sons
ISBN: 3527608893
Format: PDF, ePub, Mobi
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Im vorliegenden Buch werden industriell eingesetzte Beschichtungsverfahren aus den Bereichen des Auftragschweißens und -lötens, des Plasma-, Lichtbogen- und Flammspritzens, der Sol-Gel-Technik sowie der Dünnschicht-technologien, Chemical-Vapor-Deposition und Physical-Vapor-Deposition, vorgestellt. Besondere Bedeutung wird dabei der Verbindung von Prozess- und Werkstofftechnologie im Hinblick auf das Herstellen anforderungsgerechter Schichten beigemessen. Weiterhin werden neu entwickelte, an der Schwelle zur industriellen Einführung stehende Beschichtungsverfahren aufgezeigt. Das Buch versetzt Ingenieure und Techniker in die Lage, das Potenzial von Oberflächenschutzschichten und den zugehörigen Beschichtungsverfahren für ihren Arbeitsbereich abschätzen zu können, so dass die Beschich- tungstechnologie integraler Bestandteil in der Entwicklung, Konstruktion und Fertigung wird.

Konstruktionswerkstoffe des Maschinen und Anlagenbaues

Author: Werner Schatt
Publisher: John Wiley & Sons
ISBN: 3527625283
Format: PDF, ePub, Mobi
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Mit der völlig neu bearbeiteten 5. Auflage der "Konstruktionswerkstoffe" steht Konstrukteuren, Technologen und Werkstoffingenieuren des Maschinen- und Anlagenbaus sowie Studierenden entsprechender Fachrichtungen ein Standardwerk zur Verfügung, das dem technischen Fortschritt und stark verbreiterten Angebot kommerzieller Werkstoffe ebenso gerecht wird wie den mit der Europäisierung einhergehenden Vereinheitlichungen in der Materialwirtschaft. Unter den Gesichtspunkten des Werkstoffeinsatzes in der Praxis und der dabei zu lösenden Probleme von Werkstoffauswahl und -substitution werden Werkstoffe aller Materialklassen eingehend erörtert. Der Inhalt ist nach Verwendungsgebieten und Gebrauchsanforderungen gegliedert. Nach zwei einleitenden Kapiteln über die Grundzüge der Werkstoffauswahl und -kennzeichnung folgt die Behandlung Allgemeiner Konstruktionswerkstoffe, von Werkstoffen für Werkzeuge, für tiefe und hohe Temperaturen, für den Einsatz unter Korrosions-, Verschleiß- und Reibbeanspruchung, von Gleit-, Lager- und Federwerkstoffen sowie von Werkstoffen für lösbare und unlösbare Verbindungen. Auf die Herstellung und Verarbeitung der Werkstoffe wird insoweit eingegangen, als sie einen bleibenden Einfluß auf die Werkstoffeigenschaften ausüben oder in Verbindung mit dem Werkstoffeinsatz charakteristisch sind.