The Superalloys: Fundamentals and Applications
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.
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Singlecrystal superalloys for blade applications
Appendix Growth of an isolated dendrite using hemispherical
Superalloys for turbine disc applications
Summary and future trends
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Acta Materialia aeroengine alloys aluminide atoms Bal Bal Bal behaviour bond coat Burgers vector casting ceramic coefﬁcient components composition conﬁrmed cooling creep deformation creep strain cycles defects deﬁned dendrite density diagram diffusion dislocation EB-PVD effect electron elements energy example fatigue crack ﬁeld Figure ﬁrst ﬂow formation fraction freckling gas turbine grain boundaries Harada heat treatment high-temperature Inconel increases inﬂuence ingot interface investment casting K. A. Green lattice Materials Science Materials Society TMS mechanical Metallurgical Metals and Materials microstructure misﬁt Ni3Al nickel nickel-based superalloys Nimonic occurs overlay coatings oxidation particles phase plane plasma spraying polycrystalline powder powder metallurgy precipitates primary creep properties Rene 95 resistance signiﬁcant single crystal single-crystal superalloys solidiﬁcation stacking fault stacking fault energy structure substrate sufﬁcient surface T. M. Pollock thermal barrier coating turbine blade typical Udimet yield stress