Download or read book The Superalloys written by Roger C. Reed and published by Cambridge University Press. This book was released on 2008-07-31 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superalloys are unique high-temperature materials used in gas turbine engines, which display excellent resistance to mechanical and chemical degradation. This book introduces the metallurgical principles which have guided their development. Suitable for graduate students and researchers, it includes exercises and additional resources at www.cambridge.org/9780521859042.
Download or read book Superalloys 2012 written by Eric S. Huron and published by John Wiley & Sons. This book was released on 2012-10-02 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Creep and Fatigue of a Single Crystal Nickel Base Superalloy written by P. Bates and published by . This book was released on 1987 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Superalloys 2020 written by Sammy Tin and published by Springer Nature. This book was released on 2020-08-28 with total page 1098 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 14th International Symposium on Superalloys (Superalloys 2020) highlights technologies for lifecycle improvement of superalloys. In addition to the traditional focus areas of alloy development, processing, mechanical behavior, coatings, and environmental effects, this volume includes contributions from academia, supply chain, and product-user members of the superalloy community that highlight technologies that contribute to improving manufacturability, affordability, life prediction, and performance of superalloys.
Download or read book Fatigue In Single Crystal Nickel Superalloys Technical Progress Report written by and published by . This book was released on 1992 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: This program investigates the seemingly unusual behavior of single crystal airfoil materials. The fatigue initiation processes in single crystal (SC) materials are significantly more complicated and involved than fatigue initiation and subsequent behavior of a (single) macrocrack in conventional, isotropic, materials. To understand these differences is the major goal of this project.
Download or read book Fatigue in Single Crystal Nickel Superalloys written by and published by . This book was released on 1991 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: This program investigates the seemingly unusual behavior of single crystal airfoil materials. The fatigue initiation processes in single crystal (SC) materials are significantly more complicated and involved than fatigue initiation and subsequent behavior of a (single) macrocrack in conventional, isotropic, materials. To understand these differences it is helpful to review the evolution of high temperature airfoils. Modern gas turbine flight propulsion systems employ single crystal materials for turbine airfoil applications because of their superior performance in resisting creep, oxidation, and thermal mechanical fatigue (TMF). These properties have been achieved by composition and alloying, of course, but also by appropriate crystal orientation and associated anisotropy. Early aeroengine turbine blade and vane materials were conventionally cast, equiaxed alloys, such as IN100 and Rene'80.
Download or read book Creep and Fatigue of a Single Crystal Nickel Base Superalloy written by Paul Bates and published by . This book was released on 1987 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Superalloys 2016 written by Mark C. Hardy and published by Wiley-TMS. This book was released on 2016-10-03 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the Proceedings 13th International Symposium on Superalloys
Download or read book Superalloys written by Nataliya V. Kazantseva and published by CRC Press. This book was released on 2018-12-07 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superalloys form a class of the structural materials for high-temperature applications. Nickel superalloys are extensively used in the high-temperature components of gas turbines due to their excellent creep, fatigue, and corrosion resistance at elevated temperatures. These materials are considered paramagnetic in the range of working temperatures. This book presents the features of the ternary phase diagrams Ni-Al-X (X = {Co, Fe, Nb, Ti, Cr}), effects of the alloying on the long-range order and mechanical properties of the Ni3 Al-based alloys. Description of the strain-induced ferromagnetism in the Ni3Al-based alloys and magnetic control of the failure of gas turbine blades are also included. A separate section is devoted to the analysis of the vibration process and strength change in the single-crystal gas turbine blades. This book includes the review of the new intermetallic cobalt superalloys. The structure, crystal lattice parameters, orientation relationships between phases, mechanical and magnetic properties of the Co3(Al,W)-based alloys are described. Non-destructive magnetic point control of the martensite content in low-magnetic austenitic alloys is a new method for detection of the local sites with internal stresses. This method is useful for the detection of the residual stress in the critical parts of industrial products. This book may be useful for specialists in material science, first-year postgraduate students taking a class in material science and engineering, and engineers developing new alloys for the gas turbine technology.
Download or read book Oxidation Fatigue Interactions in a Single Crystal Superalloy written by PK. Wright and published by . This book was released on 1988 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research was conducted to identify, understand, and model the interactions of oxidation and low cycle fatigue (LCF) in a single crystal nickel-base superalloy, René N4. The LCF testing was conducted at 1093°C (2000°F) in three test environments: purified helium (
Download or read book Modelling of Constitutive and Fatigue Behaviour of a Single crystal Nickel base Superalloy written by Daniel Leidermark and published by . This book was released on 2010 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermo mechanical Fatigue of the Single Crystal Nickel Based Superalloy CMSX 4 written by Gemma L. Drew and published by . This book was released on 2003 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modelling of Crack Growth in Single Crystal Nickel Base Superalloys written by Christian Busse and published by Linköping University Electronic Press. This book was released on 2019-09-24 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation was produced at the Division of Solid Mechanics at Linköping University and is part of a research project, which comprises modelling, microstructure investigations and material testing of cast nickel-base superalloys. The main objective of this work was to deepen the understanding of the fracture behaviour of single-crystal nickel-base superalloys and to develop a model to predict the fatigue crack growth behaviour. Frequently, crack growth in these materials has been observed to follow one of two distinct cracking modes; Mode I like cracking perpendicular to the loading direction or crystallographic crack growth on the octahedral {111}-planes, where the latter is associated with an increased fatigue crack growth rate. Thus, it is of major importance to account for this behaviour in component life prediction. Consequently, a model for the prediction of the transition of cracking modes and the correct active crystallographic plane, i.e. the crack path, and the crystallographic crack growth rate has been developed. This model is based on the evaluation of appropriate crack driving forces using three-dimensional finite-element simulations. A special focus was given towards the influence of the crystallographic orientation on the fracture behaviour. Further, a model to incorporate residual stresses in the crack growth modelling is presented. All modelling work is calibrated and validated by experiments on different specimen geometries with different crystallographic orientations. This dissertation consists of two parts, where Part I gives an introduction and background to the field of research, while Part II consists of six appended papers. Die vorliegende Dissertation wurde in der Abteilung für Festigkeitslehre an der Universität von Linköping erstellt und ist Teil eines Forschungsprojektes, welches Modellierung, Mikrostrukturuntersuchungen und Materialtests von gegossenen nickelbasierten Superlegierungen umfasst. Das Hauptziel dieser Arbeit war es, das Verständnis des Bruchverhaltens von einkristallinen Superlegierungen auf Nickelbasis zu vertiefen und ein Modell zur Vorhersage des Wachstumsverhaltens von Ermüdungsrissen zu entwickeln. Es wurde beobachtet, dass das Risswachstum in diesen Materialien einem von zwei unterschiedlichen Rissmodi folgt; Modus I Rissfortschritt senkrecht zur Belastungsrichtung oder kristallographisches Risswachstum auf den oktaedrischen f111g-Ebenen, wobei letzteres mit einer erhöhten Ermüdungsrisswachstumsrate verbunden ist. Somit ist es von grosser Bedeutung dieses Verhalten in der Lebensdauervorhersage einer Komponente zu berücksichtigen. Demzufolge wurde ein Modell für die Vorhersage des Übergangs zwischen den Rissmodi und der korrekten aktiven kristallographischen Ebene, d.h. des Risspfades, sowie der kristallographischen Risswachstumsrate erarbeitet. Dieses Modell basiert auf geeigneten Rissantriebskräften, welche mit Hilfe dreidimensionaler Finite-Elemente-Simulationen berechnet werden. Im Fokus stand insbesondere der Einuss der kristallographischen Orientierung auf das Bruchverhalten. Ausserdem wird ein Modell zur Berücksichtigung von Restspannungen in der Risswachstumsmodellierung präsentiert. Alle Modellierungsarbeiten wurden durch Experimente an verschiedenen Probengeometrien mit unterschiedlichen kristallographischen Orientierungen kalibriert und validiert. Diese Dissertation besteht aus zwei Teilen, wobei Teil I aus einer Einführung und einem Hintergrund in das Forschungsgebiet und Teil II aus sechs beigefügten Forschungsartikeln besteht.
Download or read book Superalloys written by Matthew J. Donachie and published by ASM International. This book was released on 2002 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Analysis of Low Cycle Fatigue Properties of Single Crystal Nickel base Turbine Blade Superalloys written by Evelyn M. Orozco-Smith and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: The superior creep, stress rupture, melt resistance, and thermomechanical fatigue capabilities of single-crystal Ni-base superalloys PWA 1480/1493 and PWA 1484 over polycrystalline alloys make them excellent choices for aerospace structures. Both alloys are used in the NASA SSME Alternate Turbopump design, a liquid hydrogen fueled rocket engine. The failure modes of single crystal turbine blades are complicated and difficult to predict due to material orthotropy and variations in crystal orientations. The objective of this thesis is to perform a detailed analysis of experimentally determined low cycle fatigue (LCF) data for a single crystal material with different specimen orientations in order to determine the most effective parameter in predicting fatigue failure. This study will help in developing a methodical approach to designing damage tolerant Ni-base single crystal superalloy blades (as well as other components made of this material) with increased fatigue and temperature capability and lay a foundation for a mechanistic based life prediction system.
Download or read book Temperature Dependent Fracture Toughness of a Single Crystal Nickel Superalloy written by W. Steven Johnson and published by . This book was released on 2005 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: An important application of nickel base superalloys is in the industrial gas turbine (IGT) industry, where the high temperature capabilities of these alloys are exploited. Extensive testing has focused on the tensile and fatigue properties of single crystal versions of these alloys. The single crystals are utilized in the hottest parts of the turbine, where a detailed knowledge of material behavior is critical to design and life assessment. However, studies on the effects of temperature on fracture toughness have largely been absent in both past and present literature. Therefore, the goal of this research is to characterize the fracture toughness properties of a second-generation single crystal nickel superalloy at elevated temperatures. The experimental methods follow ASTM guidelines, as does the analysis for the elastic (K) and plastic (J integral) deformation. The toughness values were invalid for plain strain fracture toughness, but this should be expected from a structural material. In spite of this fact, both the K- and J- based analyses reveal consistent trends. Increased plasticity at elevated temperatures results in an overall increase in toughness as temperature increases. Unusual cases with inclined pre-cracks and microstructural defects did not technically yield valid results, although they were consistent with the nominal cases. Overall, the results indicate that the toughness of single crystal nickel alloys is actually quite high. Thus, the lack of work in this subject is understandable. However, it would seem that any design and lifing work would benefit from an understanding of such a fundamental property.
Download or read book Fatigue of an Aluminium Coated Single Crystal Nickel base Superalloy written by Terry Craig Totemeier and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
