Oxidation of Nickel- and Cobalt-base Superalloys

Oxidation of Nickel- and Cobalt-base Superalloys PDF Author: Carl H. Lund
Publisher:
ISBN:
Category : Cobalt alloys
Languages : en
Pages : 38

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Book Description
This report presents information dealing with the oxidation of nickel- and cobalt-base superalloys. All of the superalloys will oxidize at high temperatures when oxygen is present in the enveloping atmosphere. The rate of oxidation depends upon alloy composition, temperature, oxygen concentration, oxides formed, diffusion rates of the metals in both base metal and oxide, diffusion rate of oxygen in the oxide, solubility of oxygen in the matrix, and a host of other variables. The effects of oxidation can be beneficial or they can be harmful. The first section of this report deals with the fundamentals of the oxidation of Ni-Cr and Co-Cr alloys. Subsequent sections discuss general surface oxidation, intergranular oxidation, other subsurface oxidation, and the effect of stress on the rate of oxidation. Numerous specific alloys are mentioned in the report; as an aid to the reader, the appendix contains an alloy index of the alloys mentioned in the report along with the compositions of the alloys, and the pages on which mention of the alloys is made.

Oxidation of Nickel- and Cobalt-base Superalloys

Oxidation of Nickel- and Cobalt-base Superalloys PDF Author: Carl H. Lund
Publisher:
ISBN:
Category : Cobalt alloys
Languages : en
Pages : 38

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Book Description
This report presents information dealing with the oxidation of nickel- and cobalt-base superalloys. All of the superalloys will oxidize at high temperatures when oxygen is present in the enveloping atmosphere. The rate of oxidation depends upon alloy composition, temperature, oxygen concentration, oxides formed, diffusion rates of the metals in both base metal and oxide, diffusion rate of oxygen in the oxide, solubility of oxygen in the matrix, and a host of other variables. The effects of oxidation can be beneficial or they can be harmful. The first section of this report deals with the fundamentals of the oxidation of Ni-Cr and Co-Cr alloys. Subsequent sections discuss general surface oxidation, intergranular oxidation, other subsurface oxidation, and the effect of stress on the rate of oxidation. Numerous specific alloys are mentioned in the report; as an aid to the reader, the appendix contains an alloy index of the alloys mentioned in the report along with the compositions of the alloys, and the pages on which mention of the alloys is made.

The Physical Metallurgy of Cobalt-base Superalloys

The Physical Metallurgy of Cobalt-base Superalloys PDF Author: H J Wagner
Publisher:
ISBN:
Category : Cobalt
Languages : en
Pages : 100

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Book Description
A detailed picture is presented of the physical and chemical phenomena that affect the behavior of cobalt-base superalloys. Solid-solution strengthening is obtained from the high-melting metallic elements molybdenum, tungsten, tantalum, and columbium. These elements also participate in precipitation reactions involving their carbides. Precipitation of intermetallic compounds such as Ni3Ti is an important process in cobalt alloys containing appreciable amounts of nickel and titanium. The relationships among microstructure, heat treatment, and mechanical properties of the important commercial alloys are considered, and whenever possible, explained on the basis of the physical and chem cal processes that occur. (Author).

Superalloys

Superalloys PDF Author: Blaine Geddes
Publisher: ASM International
ISBN: 1615031421
Category : Technology & Engineering
Languages : en
Pages : 185

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Book Description
"This practical guide provides an introduction for understanding the compositional complexity of superalloys superalloy and the wide range of alloys developed for specific applications. The basics of alloying, strengthening mechanisms, and structure of superalloys are explained in optimizing particular mechanical properties, oxidation/corrosion resistance, and manufacturing characteristics such as castability, forgeability, and weldability."--Publisher's description.

High Temperature Oxidation and Hot Corrosion of Nickel and Cobalt Based Superalloys

High Temperature Oxidation and Hot Corrosion of Nickel and Cobalt Based Superalloys PDF Author: National Aeronautical Establishment (Canada)
Publisher:
ISBN:
Category : Cobalt alloys
Languages : en
Pages : 30

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Book Description


Superalloys 2012

Superalloys 2012 PDF Author: Eric S. Huron
Publisher: John Wiley & Sons
ISBN: 1118516400
Category : Technology & Engineering
Languages : en
Pages : 952

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Book Description
A superalloy, or high-performance alloy, is an alloy that exhibits excellent mechanical strength at high temperatures. Superalloy development has been driven primarily by the aerospace and power industries. This compilation of papers from the Twelfth International Symposium on Superalloys, held from September 9-13, 2012, offers the most recent technical information on this class of materials.

High-temperature Oxidation of Metals

High-temperature Oxidation of Metals PDF Author: Per Kofstad
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 366

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Book Description


ASM Metals Reference Book, 3rd Edition

ASM Metals Reference Book, 3rd Edition PDF Author: Michael Bauccio
Publisher: ASM International
ISBN: 9780871704788
Category : Technology & Engineering
Languages : en
Pages : 628

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Book Description
This reference book makes it easy for anyone involved in materials selection, or in the design and manufacture of metallic structural components to quickly screen materials for a particular application. Information on practically all ferrous and nonferrous metals including powder metals is presented in tabular form for easy review and comparison between different materials. Included are chemical compositions, physical and mechanical properties, manufacturing processes, applications, pertinent specifications and standards, and test methods. Contents Overview: Glossary of metallurgical terms Selection of structural materials (specifications and standards, life cycle and failure modes, materials properties and design, and properties and applications) Physical data on the elements and alloys Testing and inspection Chemical composition and processing characteristics

High Temperature Oxidation and Hot Corrosion of Nickel and Cobalt Based Superalloys

High Temperature Oxidation and Hot Corrosion of Nickel and Cobalt Based Superalloys PDF Author: Etablissement aƩronautique national (Canada)
Publisher:
ISBN:
Category :
Languages : en
Pages : 30

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Book Description


Nickel, Cobalt, and Their Alloys

Nickel, Cobalt, and Their Alloys PDF Author: Joseph R. Davis
Publisher: ASM International
ISBN: 0871706857
Category : Technology & Engineering
Languages : en
Pages : 450

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Book Description
This book is a comprehensive guide to the compositions, properties, processing, performance, and applications of nickel, cobalt, and their alloys. It includes all of the essential information contained in the ASM Handbook series, as well as new or updated coverage in many areas in the nickel, cobalt, and related industries.

Superalloys

Superalloys PDF Author: Matthew J. Donachie
Publisher: ASM International
ISBN: 1615030646
Category : Heat resistant alloys
Languages : en
Pages : 439

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Book Description
This book covers virtually all technical aspects related to the selection, processing, use, and analysis of superalloys. The text of this new second edition has been completely revised and expanded with many new figures and tables added. In developing this new edition, the focus has been on providing comprehensive and practical coverage of superalloys technology. Some highlights include the most complete and up-to-date presentation available on alloy melting. Coverage of alloy selection provides many tips and guidelines that the reader can use in identifying an appropriate alloy for a specific application. The relation of properties and microstructure is covered in more detail than in previous books.