The Superalloys

Author: Roger C. Reed
Publisher: Cambridge University Press
ISBN: 9781139458634
Release Date: 2008-07-31
Genre: Technology & Engineering

Superalloys are unique high-temperature materials used in gas turbine engines, which display excellent resistance to mechanical and chemical degradation. This book presents the underlying metallurgical principles which have guided their development and practical aspects of component design and fabrication from an engineering standpoint. The topics of alloy design, process development, component engineering, lifetime estimation and materials behaviour are described, with emphasis on critical components such as turbine blading and discs. The first introductory text on this class of materials, it will provide a strong grounding for those studying physical metallurgy at the advanced level, as well as practising engineers. Included at the end of each chapter are exercises designed to test the reader's understanding of the underlying principles presented. Solutions for instructors and additional resources are available at www.cambridge.org/9780521859042.

Superalloys

Author: Blaine Geddes
Publisher: ASM International
ISBN: 9781615031429
Release Date: 2010
Genre: Alloys

"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.

Superalloys Supercomposites and Superceramics

Author: John K Tien
Publisher: Elsevier
ISBN: 9780323140386
Release Date: 2012-12-02
Genre: Technology & Engineering

Superalloys, Supercomposites and Superceramics reviews the state of superalloy technology and some of the more salient aspects of alternative high temperature systems such as superceramics and supercomposites. Superalloy topics range from resource availability to advanced processing such as VIM, VAR, and VADAR, along with investment casting and single crystal growth, new superplastic forming techniques and powder metallurgy, structure property relationships, strengthening mechanisms, oxidation, hydrogen embrittlement, and phase predictions. This book is comprised of 22 chapters that explore key issues of high temperature materials in a synergistic manner. The first chapter reflects on the growth of the superalloy industry and its technology over the past 40 years. The discussion then turns to some of the trends in superalloy development, focusing on what is understood to be meant by the term strategic materials and the current status of resources and reserves in the United States. Particular attention is given to the supply sources and availability of strategic materials. The results achieved from the research program undertaken by NASA Lewis Research Center named Conservation Of Strategic Aerospace Materials (COSAM) are also presented. The chapters that follow explore alternative high temperature systems such as intermetallics, fiber reinforced superalloys, and the processing and high temperature properties of ceramics and carbon-carbon composites. This book will be a valuable resource for professionals and graduate students interested in learning about superalloys, supercomposites, and superceramics.

Fundamentals of Creep in Metals and Alloys

Author: Michael E. Kassner
Publisher: Butterworth-Heinemann
ISBN: 9780080994321
Release Date: 2015-01-06
Genre: Technology & Engineering

Although the present edition of Fundamentals of Creep in Metals and Alloys remains broadly up to date for metals, there are a range of improvements and updates that are either desirable, or required, in order to ensure that the book continues to meet the needs of researchers and scholars in the general area of creep plasticity. Besides updating the areas currently covered in the second edition with recent advances, the third edition will broaden its scope beyond metals and alloys to include ceramics, covalent solids, minerals and polymers, thus addressing the fundamentals of creep in all basic classes of materials. Numerous line drawings with consistent format and units allow easy comparison of the behavior of a very wide range of materials Transmission electron micrographs provide direct insight into the basic microstructure of metals deforming at high temperatures Extensive literature review of about 1000 references provides an excellent overview of the field

Advances in Brazing

Author: Dušan P Sekulić
Publisher: Elsevier
ISBN: 9780857096500
Release Date: 2013-03-04
Genre: Technology & Engineering

Brazing processes offer enhanced control, adaptability and cost-efficiency in the joining of materials. Unsurprisingly, this has lead to great interest and investment in the area. Drawing on important research in the field, Advances in brazing provides a clear guide to the principles, materials, methods and key applications of brazing. Part one introduces the fundamentals of brazing, including molten metal wetting processes, strength and margins of safety of brazed joints, and modeling of associated physical phenomena. Part two goes on to consider specific materials, such as super alloys, filler metals for high temperature brazing, diamonds and cubic boron nitride, and varied ceramics and intermetallics. The brazing of carbon-carbon (C/C) composites to metals is also explored before applications of brazing and brazed materials are discussed in part three. Brazing of cutting materials, use of coating techniques, and metal-nonmetal brazing for electrical, packaging and structural applications are reviewed, along with fluxless brazing, the use of glasses and glass ceramics for high temperature applications and nickel-based filler metals for components in contact with drinking water. With its distinguished editor and international team of expert contributors, Advances in brazing is a technical guide for any professionals requiring an understanding of brazing processes, and offers a deeper understanding of the subject to researchers and engineers within the field of joining. Reviews the advances of brazing processes in joining materials Discusses the fundamentals of brazing and considers specific materials, including super alloys, filler metals, ceramics and intermetallics Brazing of cutting materials and structural applications are also discussed

Superalloys II

Author: Chester Thomas Sims
Publisher: Wiley-Interscience
ISBN: UOM:39015049112710
Release Date: 1987
Genre: Technology & Engineering

This is the first truly comprehensive review of the latest developments in the pursuit of superalloys since the publication, 15 years ago, of Superalloys, which quickly became the standard work in the field. The editors of this volume define superalloys as those alloys based on Group VIIIA-base elements developed for elevated temperature service (some of which operate at nearly 90% of their absolute melting temperature), which also demonstrate combined mechanical strength and surface stability. Topics covered include gas turbine design and superalloys, cobalt-base alloys, nickel-iron alloys, prediction of phase composition, high-temperature oxidation, wrought alloys, powder metallurgy, joining, alternative materials, and the future of superalloys. Contains appendixes of phase diagrams, superalloy data, and registered trademarks.

Cold and Hot Forging

Author: Taylan Altan
Publisher: ASM International
ISBN: 9781615030941
Release Date: 2005
Genre: Technology & Engineering

Editors Altan (Ohio State University), Ngaile (North Carolina University), and Shen (Ladish Company, Inc.) offer this extensive overview of the latest developments in the design of forging operations and dies. Basic technological principles are briefly reviewed in the first two chapters.

Cracks in superalloys

Author: Jonas Saarimäki
Publisher: Linköping University Electronic Press
ISBN: 9789176853856
Release Date: 2018-01-18
Genre:

Gas turbines are widely used in industry for power generation and as a power source at hard to reach locations where other possibilities for electrical power supplies are insufficient. New ways of producing greener energy is needed to reduce emission levels. This can be achieved by increasing the combustion temperature of gas turbines. High combustion temperatures can be detrimental and degrade critical components. This raises the demands on the high temperature performance of the superalloys used in gas turbine components. These components are frequently subjected to different cyclic loads combined with for example dwell-times and overloads at elevated temperatures, which can influence the crack growth. Dwell-times have been shown to accelerate crack growth and change cracking behaviour in both Inconel 718, Haynes 282 and Hastelloy X. On the other hand, overloads at the beginning of a dwell-time cycle have been shown to retard the dwell-time effect on crack growth in Inconel 718. More experiments and microstructural investigations are needed to better understand these effects. The work presented in this thesis was conducted under the umbrella of the research program Turbo Power; "High temperature fatigue crack propagation in nickel-based superalloys", where I have mainly looked at fatigue crack growth mechanisms in superalloys subjected to dwell-fatigue, which can have a devastating effect on crack propagation behaviour. Mechanical testing was performed under operation-like cycles in order to achieve representative microstructures and material data for the subsequent microstructural work. Microstructures were investigated using light optical microscopy and scanning electron microscopy (SEM) techniques such as electron channeling contrast imaging (ECCI) and electron backscatter diffraction (EBSD). The outcome of this work has shown that there is a significant increase in crack growth rate when dwell-times are introduced at maximum load (0 % overload) in the fatigue cycle. With the introduction of a dwell-time there is also a shift from transgranular to intergranular crack growth for both Inconel 718 and Haynes 282. The crack growth rate decreases with increasing overload levels in Inconel 718 when an overload is applied prior to the dwell-time. At high temperature, intergranular crack growth was observed in Inconel 718 as a result of oxidation and the creation of nanometric voids. Another observed growth mechanism was crack advance along δ-phase boundaries with subsequent oxidation of the δ-phase. This thesis comprises two parts. Part I gives an introduction to the field of superalloys and the acting microstructural mechanisms related to fatigue and crack propagation. Part II consists of five appended papers, which report the work completed as part of the project.

Shape Memory Materials

Author: K. Otsuka
Publisher: Cambridge University Press
ISBN: 0521663849
Release Date: 1999-10-07
Genre: Technology & Engineering

A comprehensive account of shape memory materials, now available in paperback.

Titanium and Titanium Alloys

Author: Christoph Leyens
Publisher: John Wiley & Sons
ISBN: 9783527605200
Release Date: 2006-03-06
Genre: Technology & Engineering

This handbook is an excellent reference for materials scientists and engineers needing to gain more knowledge about these engineering materials. Following introductory chapters on the fundamental materials properties of titanium, readers will find comprehensive descriptions of the development, processing and properties of modern titanium alloys. There then follows detailed discussion of the applications of titanium and its alloys in aerospace, medicine, energy and automotive technology.

Metal forming

Author: Taylan Altan
Publisher: Asm Intl
ISBN: 0871701677
Release Date: 1983-10-01
Genre: Crafts & Hobbies


High Entropy Alloys

Author: Michael C. Gao
Publisher: Springer
ISBN: 9783319270135
Release Date: 2016-04-27
Genre: Technology & Engineering

This book provides a systematic and comprehensive description of high-entropy alloys (HEAs). The authors summarize key properties of HEAs from the perspective of both fundamental understanding and applications, which are supported by in-depth analyses. The book also contains computational modeling in tackling HEAs, which help elucidate the formation mechanisms and properties of HEAs from various length and time scales.

Aerospace Materials Handbook

Author: Sam Zhang
Publisher: CRC Press
ISBN: 9781439873304
Release Date: 2016-04-19
Genre: Technology & Engineering

Whether an airplane or a space shuttle, a flying machine requires advanced materials to provide a strong, lightweight body and a powerful engine that functions at high temperature. The Aerospace Materials Handbook examines these materials, covering traditional superalloys as well as more recently developed light alloys. Capturing state-of-the-art developments in materials research for aeronautical and aerospace applications, this book provides a timely reference for both newcomers and veteran researchers in the field. The chapters address developments in bulk materials, coatings, traditional materials, and new materials. Beginning with an overview of superalloys, including nickel-, nickel–iron-, and cobalt-based superalloys, the text covers machining, laser cladding and alloying, corrosion performance, high-temperature oxidation, thermal spraying, and nanostructured coatings. It also includes four categories of composites used in aerospace: metal matrix, polymer, carbon nanotube-reinforced polymer, and self-healing composites. The text describes preparation, processing, and fatigue of lightweight magnesium alloys, as well as an exciting new class of materials—aerogels. This book brings readers to the cutting edge of research in materials for aerospace and aeronautics. It provides an entry point into this field and presents details to stimulate future research. This unique, up-to-date resource offers knowledge to enable practitioners to develop faster, more efficient, and more reliable air- and spacecraft.

Light Alloys

Author: Ian Polmear
Publisher: Butterworth-Heinemann
ISBN: 9780080994307
Release Date: 2017-03-29
Genre: Technology & Engineering

Light Alloys: From Traditional Alloys to Nanocrystals, Fifth Edition, covers the materials science, properties, manufacturing processes, and applications of key engineering metals in a single accessible volume. As use of these metals is now more widespread than ever, with routine use in motor vehicles and aircraft, this book includes materials characteristics and applications, heat treatment properties, fabrication, microstructure/property relationships, new applications, and processes. Provides a definitive, single volume overview on the light alloys Presents new material on the processing, characteristics, and applications of these essential metals Covers the latest applications and processes in the auto and aero industries

Superalloys 1984

Author: Maurice Gell
Publisher: Tms
ISBN: UOM:39015029288431
Release Date: 1984
Genre: Alloys