Development of Low Density Titanium Alloys for Structural Applications

Development of Low Density Titanium Alloys for Structural Applications
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
Total Pages: 44
Release: 2018-07-02
Genre:
ISBN: 9781722165963
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In this report the results of a program designed to reduce the density of titanium by adding magnesium are presented. Because these two elements are immiscible under conventional ingot metallurgy techniques, two specialized powder metallurgy methods namely, mechanical alloying (MA) and physical vapor deposition (PVD) were implemented. The mechanical alloying experiments were done both at the University of Idaho and at the Defense Research Agency in UK. Since titanium is reactive with interstitial elements, a secondary goal of this research was to correlate solubility extensions with interstitial contamination content, especially oxygen and nitrogen. MA was carried out in SPEX 8000 shaker mils and different milling containers were utilized to control the level of contamination. Results showed that solubilities of Mg in Ti were obtained up to 28 at.% (16.4 wt. %) Mg in Ti for Ti-39.6 at. % (25 wt. %) Mg alloys, which greatly exceed those obtained under equilibrium conditions. This reflects a density reduction of approximately 26 %. Contamination of oxygen and nitrogen seemed to increase the solubility of magnesium in titanium in some cases; however, we were not able to make a clear correlation between contamination levels with solubilities. Work at the DRA has emphasized optimization of present PVD equipment, specifically composition and temperature control. Preliminary PVD data has shown Ti-Mg deposits have successfully been made up to 2 mm thick and that solubility extensions were achieved. The potential for density reduction of titanium by alloying with magnesium has been demonstrated; however, this work has only scratched the surface of the development of such low density alloys. Much research is needed before such alloys could be implemented into industry. Further funding is required in order to optimize the MA/PVD processes including contamination control, determination of optimal alloy compositions, microstructure development, and mechanical property determinat...

Titanium Powder Metallurgy

Titanium Powder Metallurgy
Author: Ma Qian
Publisher: Butterworth-Heinemann
Total Pages: 649
Release: 2015-02-10
Genre: Technology & Engineering
ISBN: 0128009101
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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

Titanium Alloys

Titanium Alloys
Author: Jan Sieniawski
Publisher: BoD – Books on Demand
Total Pages: 160
Release: 2013-05-15
Genre: Technology & Engineering
ISBN: 9535111108
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The book contains six chapters and covers topics dealing with biomedical applications of titanium alloys, surface treatment, relationships between microstructure and mechanical and technological properties, and the effect of radiation on the structure of the titanium alloys.

Development and Application of Biomedical Titanium Alloys

Development and Application of Biomedical Titanium Alloys
Author: Liqiang Wang
Publisher: Bentham Science Publishers
Total Pages: 219
Release: 2018-04-05
Genre: Technology & Engineering
ISBN: 1681086190
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Titanium and its alloys have been widely used as biomedical implant materials due to their low density, good mechanical properties, superior corrosion resistance and biocompatibility when compared with other metallic biomaterials such as Co–Cr alloys and stainless steels. Recently, β-type titanium alloys have been increasingly considered as excellent implant materials because of the remarkable combination of high strength-to-weight ratio, good fatigue resistance, relatively low Young's modulus, good biocompatibility and high corrosion resistance relative to conventional titanium biomaterials. This book covers recent information about biomedical titanium alloy development and 3D printing. Chapters describe the processing, microstructure, mechanical properties and corrosion properties in detail. Information about the surface modification of titanium alloys for biomedical applications, and manufacturing of titanium alloys by new technologies (such as selective laser melting and electron beam melting), is also presented. Readers will learn about the various types of biomedical titanium alloys, their advantages and disadvantages, their fabrication methods and medical applications. This book is a useful handbook for biomedical engineers, metallurgists and biotechnicians seeking information about titanium-based alloys for biomaterials research and development.

Titanium and Titanium Alloys

Titanium and Titanium Alloys
Author: Christoph Leyens
Publisher: John Wiley & Sons
Total Pages: 532
Release: 2006-03-06
Genre: Technology & Engineering
ISBN: 3527605207
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This handbook is an excellent reference for materials scientists and engineers needing to gain more knowledge about these engineering materials. Following introductory chapters on the fundamental materials properties of titanium, readers will find comprehensive descriptions of the development, processing and properties of modern titanium alloys. There then follows detailed discussion of the applications of titanium and its alloys in aerospace, medicine, energy and automotive technology.

Titanium Alloys for Biomedical Development and Applications

Titanium Alloys for Biomedical Development and Applications
Author: Zhentao Yu
Publisher: Elsevier
Total Pages: 246
Release: 2022-01-21
Genre: Medical
ISBN: 0128241659
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Titanium Alloys for Biomedical Development and Applications: Design, Microstructure, Properties and Application systematically introduces basic theories and progress in the research of biomedical ß-Ti alloys achieved by researchers from different fields. It focuses on a high-strength and low elastic modulus biomedical ß-Ti alloy (TLM), etc. designed by the authors. The alloy design methods, microstructural characteristics, mechanical properties, surface treatment methods and biocompatibility of the TLM alloy are discussed in detail, along with a concise description of the medical devices made from this alloy and the application examples. This book will appeal to researchers as well as students from different disciplines, including materials science, biology, medicine and engineering fields. Fills the knowledge gap in the current research and application of newly developed biomedical ß-Ti alloys Discusses the selection principles used for proper biomedical Ti alloys for medical and dental devices Includes details on the technological data basis for the application of biomedical ß-Ti alloys with a focus on the TLM ß-Ti alloy

Materials Properties Handbook

Materials Properties Handbook
Author: Gerhard Welsch
Publisher: ASM International
Total Pages: 1206
Release: 1993-12-31
Genre: Technology & Engineering
ISBN: 9780871704818
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Comprehensive datasheets on more than 60 titanium alloys More than 200 pages on metallurgy and fabrication procedures Input from more than 50 contributors from several countries Careful editorial review for accuracy and usefulness. Materials Properties Handbook: Titanium Alloys provides a data base for information on titanium and its alloys, and the selection of specific alloys for specific applications. The most comprehensive titanium data package ever assembled provides extensive information on applications, physical properties, corrosion, mechanical properties (including design allowances where available), fatigue, fracture properties, and elevated temperature properties. The appropriate specifications for each alloy are included. This international effort has provided a broad information base that has been compiled and reviewed by leading experts within the titanium industry, from several countries, encompassing numerous technology areas. Inputs have been obtained from the titanium industry, fabricators, users, government and academia. This up-to-date package covers information from almost the inception of the titanium industry, in the 1950s, to mid-1992. The information, organized by alloy, makes this exhaustive collection an easy-to-use data base at your fingertips, which generally includes all the product forms for each alloy. The 60-plus data sheets supply not only extensive graphical and tabular information on properties, but the datasheets also describe or illustrate important factors which would aid in the selection of the proper alloy or heat treatment. The datasheets are further supplemented with back-ground information on the metallurgy and fabrication characteristics of titanium alloys. An especially extensive coverage of properties, processing and metallurgy is provided in the datasheet for the workhorse of the titanium industry, Ti-6Al-4V. This compendium includes the newest alloys made public. even those still under development. In many cases, key references are included for further information on a given subject. Comprehensive datasheets provide extensive information on: Applications, Specifications, Corrosion, Mechanical Design Properties, Fatigue and Fracture

Titanium Alloys

Titanium Alloys
Author: Maciej Motyka
Publisher: BoD – Books on Demand
Total Pages: 156
Release: 2019-11-27
Genre: Technology & Engineering
ISBN: 183962552X
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Titanium alloys, due to unique physical and chemical properties (mainly high relative strength combined with very good corrosion resistance), are considered as an important structural metallic material used in hi-tech industries (e.g. aerospace, space technology). This book provides information on new manufacturing and processing methods of single- and two-phase titanium alloys. The eight chapters of this book are distributed over four sections. The first section (Introduction) indicates the main factors determining application areas of titanium and its alloys. The second section (Manufacturing, two chapters) concerns modern production methods for titanium and its alloys. The third section (Thermomechanical and surface treatment, three chapters) covers problems of thermomechanical processing and surface treatment used for single- and two-phase titanium alloys. The fourth section (Machining, two chapters) describes the recent results of high speed machining of Ti-6Al-4V alloy and the possibility of application of sustainable machining for titanium alloys.

Titanium Alloys

Titanium Alloys
Author: Jane Perry (Science writer)
Publisher: Nova Science Publishers
Total Pages: 120
Release: 2017
Genre: Science
ISBN: 9781536104530
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Titanium and its alloys are among the most important materials with a wide range of applications. Titanium and its alloy offer a good combination of properties, such as low density, high strength-to-weight ratio, good biocompatibility, and excellent corrosion resistance. These excellent properties make Titanium and its alloys the favourite of many industries that ranges between, land, air and water applications. In this book, Chapter One provides a review of laser additive manufacturing of titanium and its alloys. Chapter Two presents some of these properties produced through research of laser metal deposition of Ti6Al4V. Chapter Three determines the effects of welding heat input on the high-temperature tensile properties, toughness, and microstructural features of titanium alloy. Chapter Four presents a commentary on the positive roles of hydrogen in titanium alloys in the aspects of microstructural refinement, hot workability, superplasticity, powder metallurgy, hydrogen storage, mechanical properties, wear resistance, welding, bonding, machining and deoxidation, with the purpose of helping readers to obtain a quick method of the special and effective hydrogen treatment technology of titanium alloys.