Download or read book Mechanical Properties of a Steel Having a Microstructure of Tempered Martensite and Bainite written by Robert Arthur Wright and published by . This book was released on 1977 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bainite in Steels written by Harshad Kumar Dharamshi Hansraj Bhadeshia and published by Maney Publishing. This book was released on 2001 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this modern classic encompasses the latest research, which sees bainitic alloys at the forefront of a new wave of "designed" steels. Contents include: Nomenclature; Introduction; Bainitic Ferrite; Carbide Precipitation; Tempering of Bainite; Thermodynamics; Kinetics; Upper and Lower Bainite; Stress and Strain Effects; Reverse Transformation from Bainite to Austenite; Acicular Ferrite; Other Morphologies of Bainite; Mechanical Properties; Modern Bainitic Alloys;Other Aspects; The Transformation of Steel.
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 Tempering Effects for Lower Bainite Martensite and Mixed Microstructures on Impact Fracture and Related Mechanical Properties of ASTM A723 Steel written by J. M. Barranco and published by . This book was released on 1992 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mixed microstructures were produced by cooling ASTM A723 steel from 830 deg C (1526 deg F) to lower temperatures, notably at 210 deg and 250 deg C (410 deg and 482 deg F), which are below the start of the martensite transformation (M sub s) temperature of 286 deg C (547 deg F), and held for 2-1/4 hours. This resulted in the isothermal formation of 25 or 66 percent lower bainite as one part of the mixed microstructure with martensite. Tempering studies were conducted from 260 deg to 704 deg C (500 deg to 1300 deg F). Optimum tempering occurred at 593 deg C (1100 deg F), where differences between strength and hardness levels were minimized and the yield strength-to-ultimate tensile strength ratio was maximized. This allowed impact and toughness tests to be performed on an equal basis. Impact tests, conducted from -100 deg to 88 deg C ( -148 deg to 190 deg F), revealed that mixed microstructures could produce higher impact energy values compared to all-martensite. When the mixed microstructure containing 25 percent lower bainite was tested at -40 deg F), the impact energy was increased by about 18 ft-lbs, compared to quenched and tempered martensite, and had the lowest ductile-brittle transition temperature of -73.3 deg C ( -100 deg F) versus -68.3 deg C ( -91 deg F) for martensite. Fracture toughness tests at -40 deg C revealed only a slight improvement in toughness for mixed microstructures at 188 Ksi (check) in., compared to all- martensite at 183.8 Ksi (check) in.
Download or read book Microstructure mechanical Property Relationships of Martensite and Lower Bainite in a 0 3 Cr 3 Cr 2 Mn Steel written by Hiroyuki Tokushige and published by . This book was released on 1983 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physical Properties of Martensite and Bainite written by and published by . This book was released on 1965 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical Properties of Steels with a Microstructure of Bainite martensite and Austenite Islands written by Sami M. Syammach and published by . This book was released on 2016 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microstructural Features and Mechanical Properties of Quenched and Tempered Martensite of 35 NCD 16 High Strength Steel written by A. El Gamal and published by . This book was released on 1979 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Steels Processing Structure and Performance Second Edition written by George Krauss and published by ASM International. This book was released on 2015-03-01 with total page 705 pages. Available in PDF, EPUB and Kindle. Book excerpt: George Krauss, University Emeritus Professor, Colorado School of Mines and author of the best-selling ASM book Steels: Processing, Structure, and Performance, discusses some of the important additions and updates to the new second edition.
Download or read book Comparative Impact Behavior of High C Steel After Conventional Quenching Tempering and Austempering written by J. Vatavuk and published by . This book was released on 2016 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Usually bainitic microstructures exhibit good toughness and austempering is typically the preferred heat treatment when toughness is the primary requirement of the component. Several reports have shown such characteristics when compared to tempered martensite. High-carbon steel may exhibit brittle characteristics but it is a good steel with respect to mechanical properties and wear resistance. The objective of this study was to compare the impact properties of AISI O1, a high-carbon tool steel, designated VND in Brazil. This was done by comparing Charpy impact strength under different heat-treatment cycles. Steel test specimens were quenched from 820°C and tempered at 450°C to obtain tempered martensite, then austenitized, cooled, and held at 350°C to obtain bainite by holding at temperature for 20, 40, and 60 min. Because hardness influences impact behavior, comparative studies were performed at the same surface hardness level. The austempered samples with bainite microstructures obtained at a constant temperature and, by varying holding times, exhibited lower impact properties as compared to the quenched and tempered condition.
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 Phase Transformations in Steels written by Elena Pereloma and published by Elsevier. This book was released on 2012-05-11 with total page 657 pages. Available in PDF, EPUB and Kindle. Book excerpt: The processing-microstructure-property relationships in steels continue to present challenges to researchers because of the complexity of phase transformation reactions and the wide spectrum of microstructures and properties achievable. This major two-volume work summarises the current state of research on phase transformations in steels and its implications for the emergence of new steels with enhanced engineering properties. Volume 1 reviews fundamentals and diffusion-controlled phase transformations. After a historical overview, chapters in part one discuss fundamental principles of thermodynamics, diffusion and kinetics as well as phase boundary interfaces. Chapters in part two go on to consider ferrite formation, proeutectoid ferrite and cementite transformations, pearlite formation and massive austenite-ferrite phase transformations. Part three discusses the mechanisms of bainite transformations, including carbide-containing and carbide-free bainite. The final part of the book considers additional driving forces for transformation including nucleation and growth during austenite-to-ferrite phase transformations, dynamic strain-induced ferrite transformations (DIST) as well as the effects of magnetic fields and heating rates. With its distinguished editors and distinguished international team of contributors, the two volumes of Phase transformations in steels is a standard reference for all those researching the properties of steel and developing new steels in such areas as automotive engineering, oil and gas and energy production. Discusses the fundamental principles of thermodynamics, diffusion and kinetics Considers various transformations, including ferrite formation, proeutectoid ferrite and cementite transformations Considers additional driving forces for transformation including nucleation and growth during austenite-to-ferrite phase transformations
Download or read book Metallographer s Guide written by B. L. Bramfitt and published by ASM International. This book was released on 2001-01-01 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a solid overview of the important metallurgical concepts related to the microstructures of irons and steels, and it provides detailed guidelines for the proper metallographic techniques used to reveal, capture, and understand microstructures. This book provides clearly written explanations of important concepts, and step-by-step instructions for equipment selection and use, microscopy techniques, specimen preparation, and etching. Dozens of concise and helpful “metallographic tips” are included in the chapters on laboratory practices and specimen preparation. The book features over 500 representative microstructures, with discussions of how the structures can be altered by heat treatment and other means. A handy index to these images is provided, so the book can also be used as an atlas of iron and steel microstructures.
Download or read book Bainite in Steels written by H.K.D.H. Bhadeshia and published by CRC Press. This book was released on 2019-04-15 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the third edition of the book, much expanded to include and incorporate important developments in the subject over the last fifteen years. The book represents a comprehensive treatise on all aspects of the bainite transformation, from the choreography of atoms during the phase change to length scales that are typical of engineering applications. The alloy design that emerges from this explains the role of solute additions, and the pernicious effects of impurities such as hydrogen. The picture presented is self-consistent and therefore is able to guide the reader on the exploitation of theory to the design of some of the most exciting steels, including the world’s first bulk nanostructured metal.
Download or read book Microstructure Mechanical Properties and Two body Abrasive Wear Resistance in Steels written by Nareshchandra Jitendrakumar Kar and published by . This book was released on 1979 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Steels written by George Krauss and published by ASM International(OH). This book was released on 1989 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Steels: Processing, Structure, and Performance is a comprehensive guide to the broad, dynamic physical metallurgy of steels. The volume is an extensively revised and updated edition of the classic 1990 book Steels: Heat Treatment and Processing Principles. Eleven new chapters expand the coverage in the previous edition, and other chapters have been reorganized and updated. This volume is an essential reference for anyone who makes, uses, studies, or designs with steel. The interrelationships between chemistry, processing, structure, and performance--the elements of physical metallurgy--are integrated for all the types of steel discussed.
Download or read book Some of the Effects of Bainite on the Impact Properties of Steel written by Herman Eugene Day and published by . This book was released on 1964 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
