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EBookClubs

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Book Deformation Processing and Properties of Structural Materials

Download or read book Deformation Processing and Properties of Structural Materials written by Eric M. Taleff and published by Minerals, Metals, & Materials Society. This book was released on 2000 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Held in honor of Professor Oleg D. Sherby, this symposia held at the 2000 TMS Annual Meeting & Exhibition presented new research and review articles on several areas in which Professor Sherby made an impact: the processing and properties of ultrahigh-carbon steels, creep behavior, and superplasticity.

Book Low Cost Route to Compaction of Ti 6Al 4V Powders Using Cold and Hot Isostatic Pressing

Download or read book Low Cost Route to Compaction of Ti 6Al 4V Powders Using Cold and Hot Isostatic Pressing written by Fatos Derguti and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book An Overview of Densification Microstructure and Mechanical Property of Additively Manufactured Ti 6Al 4V Comparison Among Selective Laser Melting Electron Beam Melting Laser Metal Deposition and Selective Laser Sintering and with Conventional Powder

Download or read book An Overview of Densification Microstructure and Mechanical Property of Additively Manufactured Ti 6Al 4V Comparison Among Selective Laser Melting Electron Beam Melting Laser Metal Deposition and Selective Laser Sintering and with Conventional Powder written by Ming Yan and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An Overview of Densification, Microstructure and Mechanical Property of Additively Manufactured Ti-6Al-4V - Comparison among Selective Laser Melting, Electron Beam Melting, Laser Metal Deposition and Selective Laser Sintering, and with Conventional Powder.

Book Comparative Assessment of Cold Spray Laser Assisted Cold Spray and Direct Metal Laser Sintering of Ti 6Al 4V

Download or read book Comparative Assessment of Cold Spray Laser Assisted Cold Spray and Direct Metal Laser Sintering of Ti 6Al 4V written by Michael Trowbridge and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ti-6Al-4V is an - titanium alloy that continues to be widely used in the aerospace and medical industries due to its corrosion resistance and impressive strength-to-weight ratio. Ti-6Al-4Vs high manufacturing time and cost make the alloy an excellent candidate for near-net shape fabrication. However, fabrication processes often introduce thermal effects that transform the microstructure and degrade mechanical properties. Cold spray (CS) avoids such thermal effects by achieving bonding through kinetic energy. However, Ti-6Al-4Vs toughness limits particle deformation and leads to deposition porosity. This investigation examines the effects of several parameters on the coating microstructure and porosity, including driving gas selection, hot isostatic pressing, and laser-assisted cold spray (LACS). Furthermore, the porosity and microstructure of the CS and LACS specimens were compared to a Direct Metal Laser Sintering (DMLS) specimen. Ultimately, eight series of specimens were analyzed across a range of fabrication processes, parameters, and post-process conditions. The results provide a better understanding of the microstructure of sprayed and printed Ti-6Al-4V and form a foundation for future mechanical testing of these processes.

Book Consolidation of Cold Spray Ti 6Al 4V Deposits

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.

Book Laser Sintering with Plastics

Download or read book Laser Sintering with Plastics written by Manfred Schmid and published by Carl Hanser Verlag GmbH Co KG. This book was released on 2018-05-07 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser Sintering (LS) with plastics is one of the most promising additive manufacturing technologies: it is currently regarded as the process most likely in the future to permanently cross the border between prototyping and the production of functional parts. This step is challenging because it means that the technology must meet certain requirements that are also valid for traditional and established production processes. Only by succeeding at this step can a wide industry acceptance of LS be expected in the future. In this context, this book covers all levels of the LS process chain, including: - Current state of the machine technology - Essential process steps, both before and during sintering - Specific demands of the materials, powder production methods, and evaluation of powder properties - Mechanical properties and density of the parts produced by LS Examples of LS-produced parts are given, including those with special design features, to illustrate the characteristics and also the limitations of the LS method. In particular, the distinct advantages of LS parts over parts produced with other plastics processing methods (e.g., injection molding) are discussed.

Book The Effect of Laser Power and Scan Speed on Melt Pool Characteristics of Pure Titanium and Ti 6Al 4V Alloy for Selective Laser Melting

Download or read book The Effect of Laser Power and Scan Speed on Melt Pool Characteristics of Pure Titanium and Ti 6Al 4V Alloy for Selective Laser Melting written by Chandrakanth Kusuma and published by . This book was released on 2016 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selective Laser Melting (SLM) is an additive manufacturing (AM) technique that creates complex parts by selectively melting metal powder layer-by-layer. In SLM, the process parameters decide the quality of the fabricated component. In this study, single beads of commercially pure titanium (CP-Ti) and Ti-6Al-4V alloy are melted on a substrate of the same material as powder using an in-house built SLM machine. Multiple combinations of laser power and scan speed are used for single bead fabrication while the laser beam diameter and powder layer thickness are kept constant. This experimental study investigates the influence of laser power, scan speed and laser energy density on the melt pool formation, surface morphology, geometry (width, depth, and height) and hardness of melt pools. The results show that the quality, geometry, and hardness of melt pool is significantly affected by laser power, scanning speed and laser energy density. In addition, the observed unfavorable effects such as inconsistent melt pool formation, balling, porosity are discussed in detail. At the end, suggestions are provided to use optimal parameters to avoid such unfavorable effects.

Book The Influence of Manufacturing Parameters on Properties of Ti 6Al 4V Products Fabricated by Selective Laser Melting and Their Surface Coating with Bioactive Polymer

Download or read book The Influence of Manufacturing Parameters on Properties of Ti 6Al 4V Products Fabricated by Selective Laser Melting and Their Surface Coating with Bioactive Polymer written by Snehashis Pal and published by . This book was released on 2019 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Microstructure and Mechanical Properties of Low temperature Hot Isostatic Pressed Ti 6Al 4V Manufactured by Electron Beam Melting

Download or read book Microstructure and Mechanical Properties of Low temperature Hot Isostatic Pressed Ti 6Al 4V Manufactured by Electron Beam Melting written by Karthikeyan Thalavai Pandian and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Improvement in Ductility and Fracture Toughness of HIP d and Isothermally Forged Ti 6Al 6V 2Sn Powder with Heat Treatment

Download or read book Improvement in Ductility and Fracture Toughness of HIP d and Isothermally Forged Ti 6Al 6V 2Sn Powder with Heat Treatment written by Ronald P. Simpson and published by . This book was released on 1986 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This program was aimed at optimizing the mechanical behavior of powder metallurgy compacts of the Ti-6Al-6V-2Sn alloy. Particular emphasis was placed on breaking-up continuous grain boundary alpha which previous work had indicated was detrimental to the properties of concern, particularly ductility and fracture toughness. A range of microstructures were produced in Hydride-Dehydride and Rotating Electrode Powder Compacts using combinations of hot isostatic pressing, extrusion, isothermal forging and heat treatment. Based on the microstructural studies, two heat treatments were selected and used in combination with powder compaction (Hot isostatic pressing or extrusion) and isothermal forging to develop mechanical properties which were correlated with processing, microstructure and fractographic features. Two types of microstructures were identified as having acceptable levels of strength, ductility and fracture toughness: 1) a high volume fraction of fine equiaxed primary alpha in a matrix of transformed beta and 2) a relatively coarse secondary alpha plate dispersion in combination with a small volume fraction of large low aspect ratio primary alpha. The processing routes necessary to develop structures were defined.

Book Development of Hot Isostatic Pressing Techniques for Producing High Quality Billet from Titanium Alloy Powder

Download or read book Development of Hot Isostatic Pressing Techniques for Producing High Quality Billet from Titanium Alloy Powder written by Gerald Friedman and published by . This book was released on 1975 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the program was to establish the relationships between consolidation and mechanical working conditions and the structure and mechanical properties of two types of Ti-6Al-6V-2Sn powders. The program required converting Ti-6Al-6V-2Sn ELI bar from a single heat to powder by two different techniques, the hydridedehydride process and the Rotating Electrode Process. The powders were to be fully characterized, and a portion consolidated by hot isostatic pressing. Billet portions representing each isostatic consolidation condition were to be examined to determine the relationships between powder type and size, consolidation practice, microstructure, and mechanical properties.