Download or read book Brazing and Diffusion Bonding of Titanium Alloys to Similar and Dissimilar Materials written by and published by . This book was released on 1965 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of the Mechanical Performance of Similar and Dissimilar Titanium Alloy Joints Formed by Diffusion Bonding and Friction Stir Welding written by Neha Kulkarni and published by . This book was released on 2015 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: Titanium alloys have turned strategically important in aerospace applications due to their high strength to weight ratio, corrosion resistance, and good strength sustainability at high temperatures. The joining of lightweight materials such as titanium alloys in aerospace industries offer two main benefits of near net shape manufacturing and of reduction in buy to fly ratio. Among the various joining methods, Diffusion Bonding and Friction Stir Welding (FSW) can be combined with superplastic forming, therefore, have been widely accepted technique to join titanium alloys to produce complex sheet structures with reduced weight and fabrication costs compared to mechanically fastened structures. Both the processes are mainly optimized for titanium alloy, Ti-6Al-4V, to produce defect free sheets of it. The other titanium alloys such as Ti-6242 and Ti-54MFG offer advantages of high temperature sustainability and better machinability over Ti-6Al-4V. The joining of titanium alloys with different properties can improve the utilization of titanium alloys and increase the functional properties of joints. However, a very limited research has been conducted on joining techniques with dissimilar titanium alloys. Therefore, the current study examines the processes with dissimilar titanium alloys to broaden the application of the process with titanium alloys. The capability of diffusion bonding process for similar and dissimilar titanium alloys was studied with five titanium alloys, Ti-64SG, Ti-64FG, Ti-6242SG, Ti-54M, and Beta-21S, by maintaining two governing parameters pressure and time constant while the temperature was varied during the formation of joints. The friction stir welding of similar and dissimilar titanium joints was also studied with five titanium alloys, Ti-64SG,Ti-64FG,Ti-6242SG,Ti-6242FG, and Ti-54MFG, by varying two parameters namely, spindle speed and the feed rate, that control the quality of the process. The bond integrity of both the processes was evaluated with metallographic examination and mechanical testing. The surface and subsurface characteristics were examined to evaluate the surface characteristics and bonding strength. The mechanical strength of diffusion-bonded joints was investigated by conducting flexure testing whereas of the friction stir welded joints were examined by performing tensile tests. The probabilistic theoretical model of estimation of bonding time of dissimilar alloys was developed by computing the surface topography at the joint interface. A combined approach of numerical and experimental methodology was used to investigate the mechanical response of different titanium joints. The numerical model was developed to simulate flexural behavior of dissimilar diffusion bonded titanium joints from the material curves of its parent alloys. Similarly tensile behavior of friction stir welded similar titanium alloys for different process conditions was developed to identify the locations of maximum stress and strain in the joints. The numerical results were compared to experimentally determined behavior characteristics of the joints to gage the validity of the modeling approach. It was found that there was good agreement in the numerical and experimental results of the tensile behavior in titanium FSW joints. The diffusion bonding temperatures lower than the ß transus temperature of titanium alloys were identified to obtain sound bonds in similar and dissimilar titanium alloys. The quality of bonding was improved as the bonding temperature was increased. In case of friction stir welding, the optimum values of spindle speed and feed rate for the joints formed by similar titanium alloys were 275 RPM/100 mm min-1, whereas it was 325RPM/125 mm min-1 for the joints formed by dissimilar titanium alloys.
Download or read book Diffusion Bonding of Materials written by N.F. Kazakov and published by Elsevier. This book was released on 2013-10-22 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diffusion Beading of Materials is an attempt to pool the experience in vacuum diffusion bonding accumulated by a number of mechanical engineering works, research establishments, and colleges. The book discusses the principal bonding variables and recommended procedures for diffusion bonding in vacuum; the equipment for diffusion bonding and production rate; and the mechanization and automation of equipment. The text also describes the diffusion bonding of steels; the bonding of cast iron and cast iron to steel; and the bonding of dissimilar metals and alloys. The bonding of refractory and active metals and their alloys; the bonding of high-temperature alloys, nickel and nickel alloys; and the bonding of cemented carbides and of a cemented carbide to steel are also considered. The book further tackles the repair and reconditioning by diffusion bonding; the bonding of porous materials; and diffusion metallurgy. The text also encompasses nonmetals and their joining to metals; quality control of diffusion-bonded joints; accident prevention; and cleanliness in vacuum diffusion bonding.
Download or read book Brazing and Brazing Alloys written by Wayne State University. Center for Application of Sciences and Technology and published by . This book was released on 1967 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Brazing and Brazing Alloys written by and published by . This book was released on 1966 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Titanium and Titanium Alloys written by and published by . This book was released on 1974 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Joining of Nickel base Alloys written by R. M. Evans and published by . This book was released on 1962 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Joining of Titanium written by Robert Edward Monroe and published by . This book was released on 1967 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report supplies information on joining processes applicable to titanium and its alloys in sheet metal applications, primarily related directly to airframe construction. Although the material presented here does not cover all titanium joining processes, and omits such processes as plasma-arc, submerged-arc, electroslag, flash, and high-frequency resistance welding, the data presented cover materials up to 2-inches thick in some cases and the report should be useful to anyone seeking titanium joining information. The joining processes covered fall into five categories: welding, brazing, metallurgical bonding (diffusion and deformation bonding), adhesive bonding, and mechanical fastening. The fusion welding processes that are discussed in detail include gas tungsten arc, gas metal arc, arc spot, and electron beam. The resistance processes give extended coverage are spot, roll spot, and seam welding. (Author).
Download or read book The Science Technology and Application of Titanium written by R. I. Jaffee and published by Elsevier. This book was released on 2013-09-24 with total page 1225 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Science, Technology and Application of Titanium contains the proceedings of an International Conference organized by the Institute of Metals, The Metallurgical Society of AIME, and the American Society for Metals in association with the Japan Institute of Metals and the Academy of Sciences of the USSR and held at the Royal Festival Hall in London, on May 21-24, 1968. The papers explore scientific and technological developments as well as applications of titanium and cover topics ranging from processing of titanium to its chemical and environmental behavior, physics, thermodynamics, and kinetics. Deformation and fracture, phase transformations and heat treatment, and alloying are also discussed. This book is comprised of 114 chapters and begins with an overview of the titanium industry in Europe and the United States. The reader is then introduced to primary and secondary fabrication of titanium; corrosion and oxidation; physical properties of titanium alloys; interaction of titanium with elements of the periodic system; and elastic interactions between dislocations and twin and grain boundaries in titanium. The crystallography of deformation twinning in titanium is also examined, along with superplasticity and transformation plasticity in titanium. The remaining chapters focus on interstitial strengthening of titanium alloys; mechanism of martensitic transformation in titanium and its alloys; phase relationships in titanium-oxygen alloys; strengthening of titanium alloys by shock deformation; and titanium hot forming. This monograph will be of interest to chemists and metallurgists.
Download or read book Solid State Joining of Dissimilar Titanium Alloys written by Todd W. Morton and published by . This book was released on 2015 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid state joining of titanium via friction stir welding and diffusion bonding have emerged as enablers of efficient monolithic structural designs by the eliminations fasteners for the aerospace industry. As design complexity and service demands increase, the need for joints of dissimilar alloys has emerged. Complex thermomechanical conditions in friction stir weld joints and high temperature deformation behavior differences between alloys used in dissimilar joints gives rise to a highly variable flow pattern within a stir zone. Experiments performed welding Ti-6Al-4V to ß21S show that mechanical intermixing of the two alloys is the primary mechanism for the generation of the localized chemistry and microstructure, the magnitude of which can be directly related to pin rotation and travel speed weld parameters. Mechanical mixing of the two alloys is heavily influenced by strain rate softening phenomena, and can be used to manipulate weld nugget structure by switching which alloy is subjected to the advancing side of the pin. Turbulent mixing of a weld nugget and a significant reduction in defects and weld forces are observed when the ß21S is put on the advancing side of the weld where higher strain rates are present. Chemical diffusion driven by the heat of weld parameters is characterized using energy dispersive x-ray spectroscopy (EDS) and is shown to be a secondary process responsible for generating short-range chemical gradients that lead to a gradient of alpha particle structures. Diffusion calculations are inconsistent with an assumption of steady-state diffusion and show that material interfaces in the weld nugget evolve through the break-down of turbulent interface features generated by material flows. A high degree of recrystallization is seen throughout the welds, with unique, hybrid chemistry grains that are generated at material interfaces in the weld nugget that help to unify the crystal structure of dissimilar alloys. The degree of recrystallization is tied to the localized thermal profile in the weld nugget as well as the heating rates of a given set of weld parameters. Slow kinetics of alpha dissolution relative to the heating rate and process times of friction stir welding suggest an alpha-particle assisted super-transus recrystallization process contributes to a refined grain size in weld parameters utilizing high travel speed.
Download or read book Advanced Joining Processes written by Lucas F. M. da Silva and published by Springer Nature. This book was released on 2020-03-31 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents recent material science-based and mechanical analysis-based advances in joining processes. It includes all related processes, e.g. friction stir welding, joining by plastic deformation, laser welding, clinch joining, and adhesive bonding, as well as hybrid joints. It gathers selected full-length papers from the 1st Conference on Advanced Joining Processes.
Download or read book Superplastic Forming Diffusion Bonding Technology of Titanium Alloys written by Zhiqiang Li and published by Springer Nature. This book was released on 2023-10-26 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive illustration to the superplastic forming/diffusion bonding (SPF/DB) technology developed over decades of research on titanium alloys, process modeling, and its application. SPF/DB technology plays key roles in building aviation components with complicated structures, with highly beneficial effects when well designed. With the ever-increasing demand on components with multiple layers, there is an urgent need for an updated assessment of traditional and modern SPF/DB processing methods. Success critically depends on making the most practical and effective choice of SPF/DB method for a given application. The book introduces titanium and titanium alloys, SPF/DB processing and its modeling, and applications for building typical single or multiple layer(s) structures. Particular attention is paid to illustrating the microstructure evolution during SPF/DB processes. The information for making technical decisions about optimal choice of measurement and evaluation methods is also given in the book. Each chapter follows a focused and pragmatic format. Fully illustrated throughout, the book presents the state of the art in SPF/DB technology in a manner that makes it useful for engineers to improve the established forming processes and quality of components. This book is an essential reading material for industrial practitioners, academic researchers and postgraduates.
Download or read book Welding and Joining of Aerospace Materials written by Mahesh Chaturvedi and published by Woodhead Publishing. This book was released on 2020-10-13 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Welding and Joining of Aerospace Materials, Second Edition, is an essential reference for engineers and designers in the aerospace, materials, welding and joining industries, as well as companies and other organizations operating in these sectors. This updated edition brings together an international team of experts with updated and new chapters on electron beam welding, friction stir welding, weld-bead cracking, and recent developments in arc welding. Highlights new trends and techniques for aerospace materials and manufacture and repair of their components Covers many joining techniques, including riveting, composite-to-metal bonding, and diffusion bonding Contains updated coverage on recently developed welding techniques for aerospace materials
Download or read book Brazing 2nd Edition written by Mel M. Schwartz and published by ASM International. This book was released on with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Brazing and Soldering 2012 written by Robbin Gourley and published by ASM International. This book was released on 2012-01-01 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Joining Technology of gamma TiAl Alloys written by Sonia Luisa dos Santos Simoes and published by CRC Press. This book was released on 2017-07-28 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book covers the development of new technologies for the joining of TiAl alloys that result in sound bonds obtained in less demanding conditions. It discusses joint processing, microstructural and mechanical characterization, and summarizes developments in new approaches to the joining of TiAl alloys using advanced characterization techniques.
Download or read book Aws C3 2m c3 2 written by American Welding Society and published by . This book was released on 2019-02-13 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
