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Author: J. Mazumder
Publisher: Springer Science & Business Media
ISBN: 9400901976
Category : Science
Languages : en
Pages : 937
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Book Description
Synthesis of nonequilibrium metallic phases has been an area of great interest to the materials processing community since early 1960. Inherent rapid cooling rates in laser processing are being used to engineer non-equilibrium microstructures which cannot be rivaled by other processes. This lecture will discuss the phenomena involved and its application in designing materials with tailored properties. What is non-equilibrium Synthesis? This is a synthesis method to produce binary or higher order materials where kinetics of the pro cess affects the transport of the constituent elements during phase transformation resulting in a composition or crystallographic configuration which is different from what is observed when the elements arranges themselves with the lowest possible Gibbs Free energy, which is the equilibrium condition. Figure 1 illustrates the phenomena. Phase diagram under equilibrium condition is illustrated by the solid line whereas the no-equilibrium phase diagram is represented by the dotted line. One can observe the shrinkage of the phase field under non-equilibrium condition. Any alloy composition between the solidus lines of the equilibrium and non-equilibrium phase diagram will be a non equilibrium alloys with extended solid solution.
Author: J. Mazumder
Publisher: Springer Science & Business Media
ISBN: 9400901976
Category : Science
Languages : en
Pages : 937
Get Book
Book Description
Synthesis of nonequilibrium metallic phases has been an area of great interest to the materials processing community since early 1960. Inherent rapid cooling rates in laser processing are being used to engineer non-equilibrium microstructures which cannot be rivaled by other processes. This lecture will discuss the phenomena involved and its application in designing materials with tailored properties. What is non-equilibrium Synthesis? This is a synthesis method to produce binary or higher order materials where kinetics of the pro cess affects the transport of the constituent elements during phase transformation resulting in a composition or crystallographic configuration which is different from what is observed when the elements arranges themselves with the lowest possible Gibbs Free energy, which is the equilibrium condition. Figure 1 illustrates the phenomena. Phase diagram under equilibrium condition is illustrated by the solid line whereas the no-equilibrium phase diagram is represented by the dotted line. One can observe the shrinkage of the phase field under non-equilibrium condition. Any alloy composition between the solidus lines of the equilibrium and non-equilibrium phase diagram will be a non equilibrium alloys with extended solid solution.
Author: Yves Pauleau
Publisher: Elsevier
ISBN: 9780080458960
Category : Technology & Engineering
Languages : en
Pages : 744
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Book Description
The current status of the science and technology related to coatings, thin films and surface modifications produced by directed energy techniques is assessed in Materials Surface Processing by Directed Energy Techniques. The subject matter is divided into 20 chapters - each presented at a tutorial level – rich with fundamental science and experimental results. New trends and new results are also evoked to give an overview of future developments and applications. Provides a broad overview on modern coating and thin film deposition techniques, and their applications Presents and discusses various problems of physics and chemistry involved in the production, characterization and applications of coatings and thin films Each chapter includes experimental results illustrating various models, mechanisms or theories
Author: C.W. Draper
Publisher: Springer Science & Business Media
ISBN: 9400944683
Category : Medical
Languages : en
Pages : 670
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Book Description
Proceedings of the NATO Advanced Study Institute, San Miniato, Italy, September 2-13, 1985
Author: Narendra B. Dahotre
Publisher: ASM International
ISBN: 9781615032235
Category : Technology & Engineering
Languages : en
Pages : 622
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Book Description
Presents various facets of laser surface treatment, emphasizing technologies that are expected to be important soon. The topics include fundamentals and types, surface texturing, heat treatment, metallic and intermetallic coating, the laser deposition of ceramic coatings, polymeric coatings, the cor
Author: C T Kwok
Publisher: Elsevier
ISBN: 0857095838
Category : Technology & Engineering
Languages : en
Pages : 392
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Book Description
Corrosion and erosion processes often occur synergistically to cause serious damage to metal alloys. Laser surface modification techniques such as laser surface melting or alloying are being increasingly used to treat surfaces to prevent corrosion or repair corroded or damaged components. Laser surface modification of alloys for corrosion and erosion resistance reviews the wealth of recent research on these important techniques and their applications. After an introductory overview, part one reviews the use of laser surface melting and other techniques to improve the corrosion resistance of stainless and other steels as well as nickel-titanium and a range of other alloys. Part two covers the use of laser surface modification to prevent different types of erosion, including liquid impingement, slurry (solid particle) and electrical erosion as well as laser remanufacturing of damaged components. With its distinguished editor and international team of contributors, Laser surface modification of alloys for corrosion and erosion resistance is a standard reference for all those concerned with preventing corrosion and erosion damage in metallic components in sectors as diverse as energy production and electrical engineering. Reviews recent research on the use of laser surface modification techniques, including the prevention of corrosion and repair of corroded or damaged components Discusses the techniques for improving the corrosion resistance of steels, nickel-titanium and a range of alloys Analyses the use of laser surface modification to prevent different types of erosion, including liquid impingement and laser remanufacturing of damaged components
Author: Gennady G. Gladush
Publisher: Springer Science & Business Media
ISBN: 3642198317
Category : Science
Languages : en
Pages : 549
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Book Description
This book describes the basic mechanisms, theory, simulations and technological aspects of Laser processing techniques. It covers the principles of laser quenching, welding, cutting, alloying, selective sintering, ablation, etc. The main attention is paid to the quantitative description. The diversity and complexity of technological and physical processes is discussed using a unitary approach. The book aims on understanding the cause-and-effect relations in physical processes in Laser technologies. It will help researchers and engineers to improve the existing and develop new Laser machining techniques. The book addresses readers with a certain background in general physics and mathematical analysis: graduate students, researchers and engineers practicing laser applications.
Author: William M. Steen
Publisher: Springer Science & Business Media
ISBN: 1447137523
Category : Technology & Engineering
Languages : en
Pages : 416
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Book Description
New chapters on bending and cleaning reflect the changes in the field since the last edition, completing the range of practical knowledge about the processes possible with lasers already familiar to users of this well-known text. Professor Steen's lively presentation is supported by a number of original cartoons by Patrick Wright and Noel Ford, which will bring a smile to your face and ease the learning process. From the reviews: "...well organized, and the text is very practical...The engineering community will find this book informative and useful." (OPTICS AND PHOTONICS NEWS, July/August 2005)
Author: Dongfang Yang
Publisher: BoD – Books on Demand
ISBN: 9535128116
Category : Technology & Engineering
Languages : en
Pages : 430
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Book Description
Laser ablation refers to the phenomenon in which a low wavelength and short pulse (ns-fs) duration of laser beam irradiates the surface of a target to induce instant local vaporization of the target material generating a plasma plume consisting of photons, electrons, ions, atoms, molecules, clusters, and liquid or solid particles. This book covers various aspects of using laser ablation phenomenon for material processing including laser ablation applied for the deposition of thin films, for the synthesis of nanomaterials, and for the chemical compositional analysis and surface modification of materials. Through the 18 chapters written by experts from international scientific community, the reader will have access to the most recent research and development findings on laser ablation through original research studies and literature reviews.
Author: J. R. Lawrence
Publisher: Woodhead Publishing
ISBN: 0081012535
Category : Technology & Engineering
Languages : en
Pages : 802
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Book Description
Advances in Laser Materials Processing: Technology, Research and Application, Second Edition, provides a revised, updated and expanded overview of the area, covering fundamental theory, technology and methods, traditional and emerging applications and potential future directions. The book begins with an overview of the technology and challenges to applying the technology in manufacturing. Parts Two thru Seven focus on essential techniques and process, including cutting, welding, annealing, hardening and peening, surface treatments, coating and materials deposition. The final part of the book considers the mathematical modeling and control of laser processes. Throughout, chapters review the scientific theory underpinning applications, offer full appraisals of the processes described and review potential future trends. A comprehensive practitioner guide and reference work explaining state-of-the-art laser processing technologies in manufacturing and other disciplines Explores challenges, potential, and future directions through the continuous development of new, application-specific lasers in materials processing Provides revised, expanded and updated coverage
Author: Rui Vilar
Publisher: Woodhead Publishing
ISBN: 0081009429
Category : Technology & Engineering
Languages : en
Pages : 350
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Book Description
Laser Surface Modification of Biomaterials: Techniques and Applications covers this expanding field, which has many potential applications, including biomaterials. Laser surface modification of biomaterials enables the production of hybrid materials with different functionality in the bulk as well as the thin, sub-micrometer surface layer. This book will provide readers with a comprehensive review of the technology and its applications. Chapters in Part 1 look at the techniques and considerations of laser surface modification, while Part 2 reviews laser surface modification techniques of the most important classes of biomaterials, with a final set of chapters discussing application specific laser surface modification. Offers a comprehensive review of laser surface modification techniques Presents recent developments, fundamentals, and progress in laser surface modification Reviews laser surface modification applications across a range of materials Emphasizes applications in biomaterials
