Download or read book A Study of Phase Transformations and Microstructure Development in a Ti 22Al 27Nb Alloy written by Jun Yang and published by . This book was released on 1996 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Phase Transformations and Microstructure Development in Two phase TiAl Ti3Al Intermetallic Alloys written by Ping Wang and published by . This book was released on 1992 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phase Transformations written by Srikumar Banerjee and published by Elsevier. This book was released on 2010-05-31 with total page 837 pages. Available in PDF, EPUB and Kindle. Book excerpt: The terms phase transitions and phase transformations are often used in an interchangeable manner in the metallurgical literature. In Phase Transformations, transformations driven by pressure changes, radiation and deformation and those occurring in nanoscale multilayers are brought to the fore. Order-disorder transformations, many of which constitute very good examples of continuous transformations, are dealt with in a comprehensive manner. Almost all types of phase transformations and reactions that are commonly encountered in inorganic materials are covered and the underlying thermodynamic, kinetic and crystallographic aspects elucidated. Shows readers the advancements in the field - due to enhanced computing power and superior experimental capability Drawing upon the background and the research experience of the authors, bringing together a wealth of experience Written essentially from a physical metallurgists view point
Download or read book Phase Transformations in Metals and Alloys Third Edition Revised Reprint written by David A. Porter and published by CRC Press. This book was released on 1992-09-10 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the decade since the first edition of this popular text was published, the metallurgical field has undergone rapid developments in many sectors. Nonetheless, the underlying principles governing these developments remain the same. A textbook that presents these advances within the context of the fundamentals is greatly needed by instructors in the field Phase Transformations in Metals and Alloys, Second Edition maintains the simplicity that undergraduate instructors and students have come to appreciate while updating and expanding coverage of recently developed methods and materials. The book is effectively divided into two parts. The beginning chapters contain the background material necessary for understanding phase transformations - thermodynamics, kinetics, diffusion theory and the structure and properties of interfaces. The following chapters deal with specific transformations - solidification, diffusional transformation in solids and diffusionless transformation. Case studies of engineering alloys are incorporated to provide a link between theory and practice. New additions include an extended list of further reading at the end of each chapter and a section containing complete solutions to all exercises in the book Designed for final year undergraduate and postgraduate students of metallurgy, materials science, or engineering materials, this is an ideal textbook for both students and instructors.
Download or read book Phase Transformations in Metals and Alloys Revised Reprint written by David A. Porter and published by CRC Press. This book was released on 2009-02-10 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expanded and revised to cover developments in the field over the past 17 years, and now reprinted to correct errors in the prior printing, Phase Transformation in Metals and Alloys, Third Edition provides information and examples that better illustrate the engineering relevance of this topic. It supplies a comprehensive overview of specific types o
Download or read book Composition and temperature dependence of to phase transformation in Ti Nb alloys written by Yunting Su and published by OAE Publishing Inc.. This book was released on 2023-07-06 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: ω phases have shown great effects on the superelasticity and modulus of metastable β-Ti alloys. In this study, the microstructure evolution during cooling and aging for β → ω phase transformation is investigated by integrating a thermodynamic database with phase field simulations. Our CALPHAD calculations based on an available thermodynamic database give the Gibbs energies of metastable β (Nb-lean β1 + Nb-rich β2 produced via spinodal decomposition) and ω phases in Ti-Nb. Informed by the results, our phase field simulations show that the formation mechanisms of ω exhibit dependence on the composition and temperature. The ω can form in Ti-26 at.% Nb without the assistance of spinodal decomposition. Further analysis shows that the precursory spinodal decomposition in the β phase occurs in Ti-50 at.% Nb, and could induce geometrically confined ω. The novel transformation pathway could create unique morphology of ω. This study could elucidate new insights into the ω phase transformation in Ti-Nb alloys and metastable β-Ti alloys having spinodal decomposition.
Download or read book Phase Transformations in Ti Alloys A Review of Recent Developments written by J. C. Williams and published by . This book was released on 1978 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The phase transformations in Ti alloys are reviewed. This review augments earlier reviews and emphasizes several transformations which have recently received attention. These include athermal omega-phase formation, martensitic transformations, nucleation and growth decomposition of the beta-phase, the ordering reaction in hcp and bcc Ti alloys and the effects of processing history on microstructure. (Author).
Download or read book Phase Transformations in Metals and Alloys written by David A. Porter and published by CRC Press. This book was released on 2021-11-07 with total page 579 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses advances in the computation of phase diagrams Offers expanded treatment of eutectic solidification with practical examples and new coverage of ternary phase diagrams, covering the concepts of orthoequilibrium and paraequilibrium Updates discussion of bainite transformation to reflect current opinions Includes new case studies covering grain refiners in aluminium alloys, additive manufacturing, thin film growth, important aerospace Al-Li alloys, and quenched and partitioned steels, and metastable austenitic stainless steels. Each chapter now begins with a list of key concepts, includes simpler illustrative exercises with relevance to real practical applications, and references to scientific publications updated to reflect experimental and computational advances in metallurgy
Download or read book Proceedings of the 13th World Conference on Titanium written by Vasisht Venkatesh and published by John Wiley & Sons. This book was released on 2016-04-26 with total page 4024 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the Proceedings of the 13th World Conference on Titanium.
Download or read book Metals Abstracts written by and published by . This book was released on 1998 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Phase Transformations and Microstructural Evolution in Cu Ge Alloys written by Sumanth Jagga and published by . This book was released on 2000 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanisms of Diffusional Phase Transformations in Metals and Alloys written by Hubert I. Aaronson and published by CRC Press. This book was released on 2010-05-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developed by the late metallurgy professor and master experimentalist Hubert I. Aaronson, this collection of lecture notes details the fundamental principles of phase transformations in metals and alloys upon which steel and other metals industries are based. Mechanisms of Diffusional Phase Transformations in Metals and Alloys is devoted to solid-solid phase transformations in which elementary atomic processes are diffusional jumps, and these processes occur in a series of so-called nucleation and growth through interface migration. Instead of relying strictly on a pedagogical approach, it documents the evolution of phase transformation concepts. The authors present topics by describing a phenomenon and then following up with a corresponding hypothesis or alternative explanation. In this way, the book also shows how the field continues to evolve and meet new challenges. Integrated with information from a number of key papers and review articles, this volume reflects this revered and influential instructor’s unique and passionate way of introducing well-established theories and knowledge in a systematic way, at the same time introducing, in great detail, how a new idea or interpretation of a phenomenon has emerged, evolved, and gained its current status. If the published version of a theory or a model was too condensed, Aaronson worked the problem out in painstaking detail so that graduate students could follow the derivations. This collection is full of such unique "Aaronsonian idiosyncrasies," which add immense value as a powerful tool for learning in this challenging materials field.
Download or read book Solidification Processing and Phase Transformations in Ordered High Temperature Alloys written by William J. Boettinger and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phase Transformations in Steels written by and published by . This book was released on 2014 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, contemporary steel research is revealing new processing avenues to tailor microstructure and properties that, until recently, were only imaginable. Much of the technological versatility facilitating this development is provided by the understanding and utilization of the complex phase transformation sequences available in ferrous alloys. Today we have the opportunity to explore the diverse phenomena displayed by steels with specialized analytical and experimental tools. Advances in multi-scale characterization techniques provide a fresh perspective into microstructural relationships at the macro- and micro-scale, enabling a fundamental understanding of the role of phase transformations during processing and subsequent deformation.
Download or read book Phase transformations in metals and alloys written by David A. Porter and published by . This book was released on 1991 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of the Kinetics of Phase Transformations in Nb Ti Al Alloys written by and published by . This book was released on 2000 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: The solidification pathways, subsequent solid-state transformations and the liquidus sulface in the Nb-Ti Al system have been examined as part of a larger investigation of phase equilibria in Nb-Ti-Al intermetallic alloys. Fifteen alloys ranging in composition from 15 to 40 at. % Al, with Nb to Ti ratios of 4:l, 2:1,1.5:1,1:1 and 1:1.5 were prepared by arc-melting, and the as-cast microstructures were characterized by optical microscopy, microhardness, x-ray diffraction, differential thermal analysis, back-scattered electron imaging, electron probe microanalysis and transmission electron microscopy. The results indicate that the range of primary 3 solidification is much wider than that indicated in previously reported liquidus surfaces, both experimental and calculated Differential thermal analysis bas identified the existence of a 3 to y + 7transformation in three alloys where it was previously thought not to exist: confirmation was provided by high temperature vacuum heat treatments in the single-phase 3 region followed by rapid quenching. The location of the boundary between the 3, -Y and 6 primao solidification fields has been redefined. A massive /J-- 6 transformation, which was observed in the east microstructure of a Nb-25Ti-25AI alloy, was repeatable through cooling following homogenization. A 3-- > S+ cY eutectoid-like transformation in the 25 at. % Al alloys, was detected by differential thermal analysis and evaluated through microstructure analysis of heat treated samples. Trends in the 3phase with variations in composition were established for both lattice parameters and microhardness.
