Download or read book Impact Properties of Vacuum Heat Treated AISI D2 and 8 Cr Cold Work Tool Steels written by Francisco Arieta and published by . This book was released on 2011 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The impact properties of the traditional 12 % Cr AISI D2 steel and a family of new generation 8 % Cr cold work tool steels (average chemical composition fulfilling the following ranges: C = 1.00 ± 0.20; Cr = 8.00 ± 0.50; Mo = 1.75 ± 0.75; V = 1.10 ± 0.70; Nb = 0.50 ± 0.45; Si = 0.95 ± 0.10; Mn ≤ 0.50; P≤0.03; S ≤ 0.015) have been investigated. All steels have been vacuum heat treated simultaneously after austenitization at 1030°C, 1060°C, and 1120°C, followed by a cryogenic treatment and triple tempers at 520°C of 2 h each. The results showed for all steels that the higher the austenitizing temperature the higher the hardness and the lower the impact properties. For the same impact value, the 8 % Cr steels presented a 3-4 Hardness Rockwell C (HRC) points higher than the AISI D2 steel. The average impact values of the 8 % Cr steels were 33 %-45 % superior to the 12 % Cr steels, but only after austenitizing at 1030°C and 1060°C. At 1120°C, the impact values dropped dramatically for both 12 % Cr and 8 % Cr steels due to the higher hardness and grain growth differences between the investigated steels. The surfaces of the fractured impact tested samples were investigated via scanning electron microscopy + energy dispersive spectroscopy techniques. The fractographic analysis showed that at 1030°C the much coarser and higher volume fraction of primary chromium carbides found in the AISI D2 than in the 8 % Cr have contributed to its lower toughness. However, as the austenitizing temperature increased to 1060°C, and in particular at 1120°C, significant grain growth, higher hardness, and consequently, high strength of the matrix, took place and played the more important roles in dropping the toughness as shown by quasi-cleavage brittle fracture appearance. Austenitizing at 1060°C and tempering at 520°C showed the best compromise for toughness and hardness. Increasing the tempering temperature to 570°C and, in particular, to 620°C, remarkably increased the toughness of the 8 % Cr steels, when the % C is kept below 1 %. For the D2 and % C > 1.15 % the increase is negligible.
Download or read book Some Effects of Cold Working by Hydrostatic Extrusion on Mechanical Properties of High strength Steels written by Charles P. Blankenship and published by . This book was released on 1971 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Distortion in Tool Steels written by Bernard S. Lement and published by . This book was released on 1959 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Treatment and Properties of Iron and Steel written by Samuel Jacob Rosenberg and published by . This book was released on 1966 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Steel Heat Treatment written by George E. Totten and published by CRC Press. This book was released on 2006-09-28 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of two self-contained volumes belonging to the newly revised Steel Heat Treatment Handbook, Second Edition, this book examines the behavior and processes involved in modern steel heat treatment applications. Steel Heat Treatment: Metallurgy and Technologies presents the principles that form the basis of heat treatment processes while incorporating detailed descriptions of advances emerging since the 1997 publication of the first edition. Revised, updated, and expanded, this book ensures up-to-date and thorough discussions of how specific heat treatment processes and different alloy elements affect the structure and the classification and mechanisms of steel transformation, distortion of properties of steel alloys. The book includes entirely new chapters on heat-treated components, and the treatment of tool steels, stainless steels, and powder metallurgy steel components. Steel Heat Treatment: Metallurgy and Technologies provides a focused resource for everyday use by advanced students and practitioners in metallurgy, process design, heat treatment, and mechanical and materials engineering.
Download or read book Proceedings of the 9th International Conference on Fracture Fatigue and Wear written by Magd Abdel Wahab and published by Springer Nature. This book was released on 2022-03-11 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings gather a selection of peer-reviewed papers presented at the 9th International Conference on Fracture Fatigue and Wear (FFW 2021), held in the city of Ghent, Belgium on 2–3 August 2021. The contributions, prepared by international scientists and engineers, cover the latest advances in and innovative applications of fracture mechanics, fatigue of materials, tribology, and wear of materials. In addition, they discuss industrial applications and cover theoretical and analytical methods, numerical simulations and experimental techniques. The book is intended for academics, including graduate students and researchers, as well as industrial practitioners working in the areas of fracture fatigue and wear.
Download or read book Introduction to Steels written by P.C. Angelo and published by CRC Press. This book was released on 2019-03-20 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book briefly describes the structure, properties and applications of various grades of steel, primarily aimed at non-metallurgical students from other engineering streams. The book consists of nine chapters covering most of the important types of steels and their physical metallurgy, microstructure and engineering applications including iron-carbon diagram, heat treatment, surface hardening methods, effect of alloying, specific applications, selection of materials, case studies and so forth. The book also contains subjective and objective questions aimed at exam preparation. Key Features Exclusive title aimed at introduction to steels for non-metallurgy audience Includes microstructure, composition, and properties of all the most commonly used steels Describes the heat treatments and the required alloying additions to process steel for the intended applications Discusses effects of alloying elements on steel Explores development of steels for specialized areas such as the automobile, aerospace, and nuclear industries
Download or read book Comprehensive Materials Finishing written by Saleem Hashmi and published by Elsevier. This book was released on 2016-09-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finish Manufacturing Processes are those final stage processing techniques which are deployed to bring a product to readiness for marketing and putting in service. Over recent decades a number of finish manufacturing processes have been newly developed by researchers and technologists. Many of these developments have been reported and illustrated in existing literature in a piecemeal manner or in relation only to specific applications. For the first time, Comprehensive Materials Finishing, Three Volume Set integrates a wide body of this knowledge and understanding into a single, comprehensive work. Containing a mixture of review articles, case studies and research findings resulting from R & D activities in industrial and academic domains, this reference work focuses on how some finish manufacturing processes are advantageous for a broad range of technologies. These include applicability, energy and technological costs as well as practicability of implementation. The work covers a wide range of materials such as ferrous, non-ferrous and polymeric materials. There are three main distinct types of finishing processes: Surface Treatment by which the properties of the material are modified without generally changing the physical dimensions of the surface; Finish Machining Processes by which a small layer of material is removed from the surface by various machining processes to render improved surface characteristics; and Surface Coating Processes by which the surface properties are improved by adding fine layer(s) of materials with superior surface characteristics. Each of these primary finishing processes is presented in its own volume for ease of use, making Comprehensive Materials Finishing an essential reference source for researchers and professionals at all career stages in academia and industry. Provides an interdisciplinary focus, allowing readers to become familiar with the broad range of uses for materials finishing Brings together all known research in materials finishing in a single reference for the first time Includes case studies that illustrate theory and show how it is applied in practice
Download or read book Materials written by Witold Brostow and published by John Wiley & Sons. This book was released on 2016-09-06 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents a fully interdisciplinary approach with a stronger emphasis on polymers and composites than traditional materials books Materials science and engineering is an interdisciplinary field involving the properties of matter and its applications to various areas of science and engineering. Polymer materials are often mixed with inorganic materials to enhance their mechanical, electrical, thermal, and physical properties. Materials: Introduction and Applications addresses a gap in the existing textbooks on materials science. This book focuses on three Units. The first, Foundations, includes basic materials topics from Intermolecular Forces and Thermodynamics and Phase Diagrams to Crystalline and Non-Crystalline Structures. The second Units, Materials, goes into the details of many materials including Metals, Ceramics, Organic Raw Materials, Polymers, Composites, Biomaterials, and Liquid Crystals and Smart Materials. The third and final unit details Behavior and Properties including Rheological, Mechanical, Thermophysical, Color and Optical, Electrical and Dielectric, Magnetic, Surface Behavior and Tribology, Materials, Environment and Sustainability, and Testing of Materials. Materials: Introduction and Applications features: Basic and advanced Materials concepts Interdisciplinary information that is otherwise scattered consolidated into one work Links to everyday life application like electronics, airplanes, and dental materials Certain topics to be discussed in this textbook are more advanced. These will be presented in shaded gray boxes providing a two-level approach. Depending on whether you are a student of Mechanical Engineering, Electrical Engineering, Engineering Technology, MSE, Chemistry, Physics, etc., you can decide for yourself whether a topic presented on a more advanced level is not important for you—or else essential for you given your professional profile Witold Brostow is Regents Professor of Materials Science and Engineering at the University of North Texas. He is President of the International Council on Materials Education and President of the Scientific Committee of the POLYCHAR World Forum on Advanced Material (42 member countries). He has three honorary doctorates and is a Member of the European Academy of Sciences, Member of the National Academy of Sciences of Mexico, Foreign Member of the National Academy of Engineering of Georgia in Tbilisi and Fellow of the Royal Society of Chemistry in London. His publications have been cited more than 7200 times. Haley Hagg Lobland is the Associate Director of LAPOM at the University of North Texas. She is a Member of the POLYCHAR Scientific Committeee. She has received awards for her research presented at conferences in: Buzios, Rio de Janeiro, Brazil; NIST, Frederick, Maryland; Rouen, France; and Lviv, Ukraine. She has lectured in a number of countries including Poland and Spain. Her publications include joint ones with colleagues in Egypt, Georgia, Germany, India, Israel, Mexico, Poland, Turkey and United Kingdom.
Download or read book Woldman s Engineering Alloys written by John P. Frick and published by ASM International. This book was released on 2000-01-01 with total page 1369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation New edition of a reference that presents the values of properties typical for the most common alloy processing conditions, thus providing a starting point in the search for a suitable material that will allow, with proper use, all the necessary design limitations to be met (strength, toughness, corrosion resistance and electronic properties, etc.) The data is arranged alphabetically and contains information on the manufacturer, the properties of the alloy, and in some cases its use. The volume includes 32 tables that present such information as densities, chemical elements and symbols, physical constants, conversion factors, specification requirements, and compositions of various alloys and metals. Also contains a section on manufacturer listings with contact information. Edited by Frick, a professional engineering consultant. Annotation c. Book News, Inc., Portland, OR (booknews.com).
Download or read book Heat Treatment written by and published by . This book was released on 1979 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Treatment 79 written by Metals Society. Heat Treatment Committee and published by . This book was released on 1980 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book History Developments and Trends in the Heat Treatment of Steel written by Peter Jurči and published by MDPI. This book was released on 2021-03-01 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Steels and their heat treatment are still very important in modern industry because most industrial components are made from these materials. The proper choice of steel grades along with their suitable processing makes it possible to reduce the weight of the components, which is closely related to energy and fuel savings. This has decisive importance in branches such as the automotive, transport, consumer industries. A great number of novel heat- and surface-treatment techniques have been developed over the past three decades. These techniques involve, for example, vacuum treatment, sub-zero treatment, laser/electron beam surface hardening and alloying, low-pressure carburizing and nitriding, and physical vapour deposition. This Special Issue contains a collection of original research articles on not only advanced heat-treatment techniques—carburizing and sub-zero treatments—but also on the microstructure–property relationships in different ferrous alloys.
Download or read book Semi Solid Processing of Alloys and Composites written by C. G. Kang and published by . This book was released on 2006 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is dedicated to the science and technology of the semi-solid processing of metals.
Download or read book Bainite and Martensite written by Carlos Garcia-Mateo and published by MDPI. This book was released on 2020-05-27 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: The microstructures of both martensite and bainite, although sharing some common features, depict a plethora of subtle differences that made them unique when studied in further detail. Tailoring the final properties of a microstructure based on one or the other as well as in combination with others and exploring more sophisticated concepts, such as Q&P and nanostructured bainite, are the topics which are the focus of research around the world. In understanding the key microstructural parameters controlling the final properties as well as definition of adequate process parameters to attain the desired microstructures requires that a proper understanding of the mechanism ruling their transformation and a detailed characterization first be acheived. The development of new and powerful scientific techniques and equipment (EBSD, APT, HRTEM, etc.) allow us to gain fundamental insights that help to establish some of the principles by which those microstructures are known. The developments accompanying such findings lead to further developments and intensive research providing the required metallurgical support.
Download or read book Encyclopedia of Iron Steel and Their Alloys Online Version written by Rafael Colás and published by CRC Press. This book was released on 2016-01-06 with total page 3918 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first of many important works featured in CRC Press’ Metals and Alloys Encyclopedia Collection, the Encyclopedia of Iron, Steel, and Their Alloys covers all the fundamental, theoretical, and application-related aspects of the metallurgical science, engineering, and technology of iron, steel, and their alloys. This Five-Volume Set addresses topics such as extractive metallurgy, powder metallurgy and processing, physical metallurgy, production engineering, corrosion engineering, thermal processing, metalworking, welding, iron- and steelmaking, heat treating, rolling, casting, hot and cold forming, surface finishing and coating, crystallography, metallography, computational metallurgy, metal-matrix composites, intermetallics, nano- and micro-structured metals and alloys, nano- and micro-alloying effects, special steels, and mining. A valuable reference for materials scientists and engineers, chemists, manufacturers, miners, researchers, and students, this must-have encyclopedia: Provides extensive coverage of properties and recommended practices Includes a wealth of helpful charts, nomograms, and figures Contains cross referencing for quick and easy search Each entry is written by a subject-matter expert and reviewed by an international panel of renowned researchers from academia, government, and industry. Also Available Online This Taylor & Francis encyclopedia is also available through online subscription, offering a variety of extra benefits for researchers, students, and librarians, including: Citation tracking and alerts Active reference linking Saved searches and marked lists HTML and PDF format options Contact Taylor and Francis for more information or to inquire about subscription options and print/online combination packages. US: (Tel) 1.888.318.2367; (E-mail) [email protected] International: (Tel) +44 (0) 20 7017 6062; (E-mail) [email protected]
Download or read book Handbook of Mould Tool and Die Repair Welding written by Steve Thompson and published by Elsevier. This book was released on 1999-10-15 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers an important and frequently overlooked area of welding - the repair of moulds, tools and dies. Because two rather different trades overlap in this process - welding and toolmaking, the materials and techniques involved have tended to be obscured. For many years, toolmakers and tool users have had to rely on the small number of specialist welders who do understand exactly what welding repair involves and have the skills to carry it out.Understanding the technical side of tool steels is frequently a problem for welders and understanding the practical side of welding can be a problem for machinists. This book has been written so that specialists from both sides can get to grips with the techniques and procedures involved.The Handbook of mould, tool and die repair welding is designed to save companies time and money by: Acting as a training aid so that repairs can be carried out in-house Reducing the need to send work out and the costs involved Reducing the production time lost when repairs are required Providing clear diagrams and a user-friendly style to make the techniques easily understood It is an essential resource for Tool Room Managers and Foremen as well as maintenance and repair welding specialists. Comprehensive tool metal welder's reference work Written for the shop floor, by the shop floor Practical, easy to understand techniques designed to save time and money
