Download or read book Consolidation of Cold Spray Ti 6Al 4V Deposits written by Marcie Hinker and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ti-6Al-4V (Ti-64) is the most popular titanium grade used in industry today with a large application window due to its properties (i.e., high strength-to-weight ratio, excellent corrosion resistance, and good biocompatibility). However, titanium and titanium alloys are notoriously expensive materials that are also costly to produce and replace. Thus, the ability to manufacture and repair Ti-64 components with additive manufacturing techniques could significantly decrease the cost of these components. Cold spray is a recent addition to the additive manufacturing industry and shows promise for this application. Unfortunately, Ti-64 depositions produced with nitrogen gas contain high porosity (5 –20%) and, consequently, exhibit poor strength and ductility. It is theorized that fully dense Ti-64 deposits would exhibit mechanical properties comparable to wrought Ti-64 specimens. Thus, the focus of this research was to utilize novel post-processing methods to consolidate Ti-64 cold spray deposits. Hot isostatic pressing (HIP) and ultrasonic processing were applied to Ti-64 nitrogen deposits to determine if either could be an effective method of consolidation. HIP processing did not result in any significant improvement to the samples. Porosity of as-deposited samples saw an average porosity of 13.1% before HIP and 13.7% after HIP processing. Additionally, average tensile and hardness values did not improve after HIP. It is believed that interconnected porosity within the cold spray samples was a major contributing factor to the failure of HIP processing to consolidate the deposits. Ultrasonic processing resulted in a full consolidation of the cold sprayed material to a depth of 500 μm and exhibited significantly improved properties. Porosity was reduced from 20.0% to 0.2% and average hardness was increased from 220 HV to over 390 HV. These results indicate that ultrasonic processing could be a meaningful addition to the cold spray process and result in fully dense coatings and deposits that exhibit near bulk properties.
Download or read book Powder Consolidation Using Cold Spray written by Atieh Moridi and published by Springer. This book was released on 2016-11-10 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book first presents different approaches to modeling of the cold spray process with the aim of extending current understanding of its fundamental principles and then describes emerging applications of cold spray. In the coverage of modeling, careful attention is devoted to the assessment of critical and erosion velocities. In order to reveal the phenomenological characteristics of interface bonding, severe, localized plastic deformation and material jet formation are studied. Detailed consideration is also given to the effect of macroscopic defects such as interparticle boundaries and subsequent splat boundary cracking on the mechanical behavior of cold spray coatings. The discussion of applications focuses in particular on the repair of damaged parts and additive manufacturing in various disciplines from aerospace to biomedical engineering. Key aspects include a systematic study of defect shape and the ability of cold spray to fill the defect, examination of the fatigue behavior of coatings for structural applications, and a novel working window at subcritical conditions to obtain porous structures. This book is exceptional in scope, and its review of finite element modelling at different length scales sheds light on future design and process improvement in emerging applications such as structural repair, metal additive manufacturing and metal foam design.
Download or read book Cold Spray Coatings written by Pasquale Cavaliere and published by Springer. This book was released on 2017-11-08 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book combines the contributions of experts in the field to describe the behavior of various materials, micromechanisms involved during processing, and the optimization of cold-spray technology. It spans production, characterization, and applications including wear resistance, fatigue, life improvement, thermal barriers, crack repair, and biological applications. Cold spray is an innovative coating technology based on the kinetic energy gained by particles sprayed at very high pressures. While the technique was developed in the 1990s, industrial and scientific interest in this technology has grown vastly in the last ten years. Recently, many interesting applications have been associated with cold-sprayed coatings, including wear resistance, fatigue life improvement, thermal barriers, biological applications, and crack repair. However, many fundamental aspects require clarification and description.
Download or read book Advances in Cold Spray written by Victor K. Champagne and published by Woodhead Publishing. This book was released on 2023-06-23 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Cold Spray: A Coating Deposition and Additive Manufacturing Process, Second Edition reviews the fundamental processes and recent advances made in the field of cold spray. This fully updated edition now includes a special chapter on Cold Spray Additive Manufacturing, along with advancements in impact modeling and simulation that allow a better understanding of the cold spray bonding mechanisms, powder synthesis and predictive modeling to improve the engineering of cold spray powders. In addition, materials properties data is a backbone of this book because the advanced cold spray materials have proven to be comparable to wrought and enable cold spray to be incorporated into structural applications for near-net shape parts production as well as for repair. Finally, numerous modern applications of cold spray representative of the Electronics, Medical, Petrochemical, Nuclear, Aerospace, Automotive, and Additive Manufacturing industries are presented. - Provides information on the fundamentals of cold spray as an additive manufacturing process - Presents the significant increase in properties of cold spray materials achieved to date - Discusses recent advancements in cold spray powders, equipment, automation, modeling and simulation and the expansion of applications
Download or read book The Cold Spray Materials Deposition Process written by and published by Elsevier. This book was released on 2007-09-21 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cold spray process produces dense, low oxide coatings which can be used in such diverse applications as corrosion control and metals repair. It has emerged as an important alternative to thermal spray coating techniques in certain areas. This pioneering book reviews both the fundamentals of the process and how it can best be applied in practice. The first part of the book discusses the development of the process together with its advantages and disadvantages in comparison with thermal spray coating techniques. Part two reviews key process parameters such as powders, nozzle design, particle temperature and velocity, and particle/substrate interaction. It also describes portable and stationary cold spray systems. The final part of the book discusses how the cold spray process can be applied in such areas as improved wear, corrosion protection, electromagnetic interference shielding and repair of damaged components. The cold spray materials deposition process is a standard reference on this important process and its industrial applications. Examines the fundamentals of the cold spraying process Assesses how the technique can best be applied in practice Describes portable and stationary cold spray systems
Download or read book Cold Spray in the Realm of Additive Manufacturing written by Sunil Pathak and published by Springer Nature. This book was released on 2020-05-12 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book sheds light on the development of the cold spray process in applications of additive manufacturing (AM) and repair/remanufacturing engineering. It covers the process fundamentals of different cold spray techniques, namely low pressure cold spray and high pressure cold spray process. Bonding mechanism and powder substrate interface are an important part of the book. The chapters present the recent developments in materials used in cold spraying for AM and various coating applications. The latest research in this area as well as possible avenues of future research are also highlighted as a way to encourage the researchers.
Download or read book Titanium Powder Metallurgy written by Ma Qian and published by Butterworth-Heinemann. This book was released on 2015-02-10 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: Titanium Powder Metallurgy contains the most comprehensive and authoritative information for, and understanding of, all key issues of titanium powder metallurgy (Ti PM). It summarizes the past, reviews the present and discusses the future of the science and technology of Ti PM while providing the world titanium community with a unique and comprehensive book covering all important aspects of titanium powder metallurgy, including powder production, powder processing, green shape formation, consolidation, property evaluation, current industrial applications and future developments. It documents the fundamental understanding and technological developments achieved since 1937 and demonstrates why powder metallurgy now offers a cost-effective approach to the near net or net shape fabrication of titanium, titanium alloys and titanium metal matrix composites for a wide variety of industrial applications. - Provides a comprehensive and in-depth treatment of the science, technology and industrial practice of titanium powder metallurgy - Each chapter is delivered by the most knowledgeable expert on the topic, half from industry and half from academia, including several pioneers in the field, representing our current knowledge base of Ti PM. - Includes a critical review of the current key fundamental and technical issues of Ti PM. - Fills a critical knowledge gap in powder metal science and engineering and in the manufacture of titanium metal and alloys
Download or read book High Pressure Cold Spray written by C. M. Kay and published by . This book was released on 2016-06 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a highly practical and useful ""go-to"" resource that presents an in-depth look at the high pressure cold spray process and describes applications in various industries. Cold spray continues to be the fastest developing spray technology over the last decade, and a significant number of scientists, engineers, and technologists are joining the cold spray community around the globe. The technology is relatively young and work is being simultaneously pursued in universities, research centers, and in many high tech industries. As this novel technology spreads quickly into many new application areas, there is a large need for an authoritative source of information. This new book addresses this need and will be indispensable to universities, libraries, and those involved in thermal spray. It presents baseline information on design and modeling, materials science of engineered coatings, and specific applications in various high tech industries, and is also a hands-on resource for cold spray operators.
Download or read book Modern Cold Spray written by Julio Villafuerte and published by Springer. This book was released on 2015-08-24 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the current state of the art of the novel cold spray process. Cold spray is a solid state metal consolidation process, which allows engineers to tailor surface and shape properties by optimizing process parameters, powder characteristics and substrate conditions for a wide variety of applications that are difficult or impossible by other techniques. Readers will benefit from this book's coverage of the commercial evolution of cold spray since the 1980's and will gain a practical understanding of what the technology has to offer.
Download or read book Additive and Subtractive Manufacturing written by J. Paulo Davim and published by Walter de Gruyter GmbH & Co KG. This book was released on 2020-01-20 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additive manufacturing (AM) and subtractive manufacturing (SM) offer numerous advantages in the production of single and multiple components. They provide incomparable design independence and are used to fabricate products in several industries, e.g.: aeronautic, automotive, biomedical, etc. The book presents recent results of processes including 3D printing, SLS (selective laser sintering), EBM (electron beam melting) and Precise Cutting and Drilling.
Download or read book Cold Gas Dynamic Spray written by Roman Gr. Maev and published by CRC Press. This book was released on 2016-04-27 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Your Guide to Advanced Cold Spray TechnologyCold Gas Dynamic Spray centers on cold gas dynamic spray (or cold spray-CS) technology, one of the most versatile thermal spray coating methods in materials engineering, and effectively describes and analyzes the main trends and developments behind the spray (coating) techniques. The book combines theory
Download or read book Cold Spray Technology written by Anatolii Papyrin and published by Elsevier. This book was released on 2006-10-04 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: The topic of this book is Cold Spray technology. Cold Spray is a process of applying coatings by exposing a metallic or dielectric substrate to a high velocity (300 to 1200 m/s) jet of small (1 to 50 μm) particles accelerated by a supersonic jet of compressed gas. This process is based on the selection of the combination of particle temperature, velocity, and size that allows spraying at the lowest temperature possible. In the Cold Spray process, powder particles are accelerated by the supersonic gas jet at a temperature that is always lower than the melting point of the material, resulting in coating formation from particles in the solid state. As a consequence, the deleterious effects of high-temperature oxidation, evaporation, melting, crystallization, residual stresses, gas release, and other common problems for traditional thermal spray methods are minimized or eliminated. This book is the first of its kind on the Cold Spray process. Cold Spray Technology covers a wide spectrum of various aspects of the Cold Spray technology, including gas-dynamics, physics of interaction of high-speed solid particles with a substrate as well as equipment, technologies, and applications. Cold Spray Technology includes the results of more than 20 years of original studies (1984-2005) conducted at the Institute of Theoretical and Applied Mechanics of the Siberian Division of the Russian Academy of Science, as well as the results of studies conducted at most of the research centres around the world. The authors' goal is threefold. The first goal is to explain basic principles and advantages of the Cold Spray process. The second goal is, to give practical information on technologies and equipment. The third goal is to present the current state of research and development in this field over the world. The book provides coverage and data that will be of interest for users of Cold Spray technology as well as for other coating experts. At the present time the Cold Spray method is recognized by world leading scientists and specialists. A wide spectrum of research is being conducted at many research centres and companies in many countries. New approach to spray coatings Results are exceptionally pure coatings Low spray temperature without degradation of powder and substrate materials High productivity, high deposition efficiency High operational safety because of absence of high temperature gas jets, radiation and explosive gases Excellent thermal and electrical conductivity Wide spectrum of applications because of important advantages of the process
Download or read book Modern Cold Spray written by Julio Villafuerte and published by Springer. This book was released on 2016-10-22 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the current state of the art of the novel cold spray process. Cold spray is a solid state metal consolidation process, which allows engineers to tailor surface and shape properties by optimizing process parameters, powder characteristics and substrate conditions for a wide variety of applications that are difficult or impossible by other techniques. Readers will benefit from this book's coverage of the commercial evolution of cold spray since the 1980's and will gain a practical understanding of what the technology has to offer.
Download or read book Modern Cold Spray written by Julio Villafuerte and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the current state of the art of the novel cold spray process. Cold spray is a solid state metal consolidation process, which allows engineers to tailor surface and shape properties by optimizing process parameters, powder characteristics, and substrate conditions for a wide variety of applications that are difficult or impossible by other techniques. Readers will benefit from this book's coverage of the commercial evolution of cold spray since the 1980's and will gain a practical understanding of what the technology has to offer.
Download or read book Titanium written by Matthew J. Donachie and published by ASM International. This book was released on 2000 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designed to support the need of engineering, management, and other professionals for information on titanium by providing an overview of the major topics, this book provides a concise summary of the most useful information required to understand titanium and its alloys. The author provides a review of the significant features of the metallurgy and application of titanium and its alloys. All technical aspects of the use of titanium are covered, with sufficient metals property data for most users. Because of its unique density, corrosion resistance, and relative strength advantages over competing materials such as aluminum, steels, and superalloys, titanium has found a niche in many industries. Much of this use has occurred through military research, and subsequent applications in aircraft, of gas turbine engines, although more recent use features replacement joints, golf clubs, and bicycles.Contents include: A primer on titanium and its alloys, Introduction to selection of titanium alloys, Understanding titanium's metallurgy and mill products, Forging and forming, Castings, Powder metallurgy, Heat treating, Joining technology and practice, Machining, Cleaning and finishing, Structure/processing/property relationships, Corrosion resistance, Advanced alloys and future directions, Appendices: Summary table of titanium alloys, Titanium alloy datasheets, Cross-reference to titanium alloys, Listing of selected specification and standardization organizations, Selected manufacturers, suppliers, services, Corrosion data, Machining data.
Download or read book Thermal Spray Fundamentals written by Pierre L. Fauchais and published by Springer Science & Business Media. This book was released on 2014-01-24 with total page 1587 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides readers with the fundamentals necessary for understanding thermal spray technology. Coverage includes in-depth discussions of various thermal spray processes, feedstock materials, particle-jet interactions, and associated yet very critical topics: diagnostics, current and emerging applications, surface science, and pre and post-treatment. This book will serve as an invaluable resource as a textbook for graduate courses in the field and as an exhaustive reference for professionals involved in thermal spray technology.
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:
