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A Transmission Electron Microscopy Study Of Some High Strength Plain Carbon Steels
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Book Synopsis A Transmission Electron Microscopy Study of Some High Strength Plain Carbon Steels by : George Joseph Vytanovych
Download or read book A Transmission Electron Microscopy Study of Some High Strength Plain Carbon Steels written by George Joseph Vytanovych and published by . This book was released on 1967 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Methods of preparing foils of high strength, heat treated, plain carbon steels for examination in the electron microscope by the transmission technique were perfected and are described. Two processes for the initial thinning of a bulk sample were successful. A chemical process was found to be more rapid but not satisfactory for small samples. A mechanical process was slower, but was applicable to the smaller specimens. Electro-polishing the thinned material yielded acceptable foils from which photomicrographs of good quality were obtained. The microstructure of the high strength steel samples showed typical tempered martensite. No reasons for the differences in ductility of different heats of steel or for the differences in ductility of a given steel, when heat treated differently, were found"--Abstract, leaf ii.'
Book Synopsis A Study of High Strength, Heat Treated Plain Carbon Steels by : Ing Shing Chien
Download or read book A Study of High Strength, Heat Treated Plain Carbon Steels written by Ing Shing Chien and published by . This book was released on 1966 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This work was undertaken as the initial step in a program of studying brittleness in carbon steel that has been heat treated to high strength levels. The trend in modern technology is toward higher tensile strengths. In practice, only alloy steels are commonly heat treated to very high strength levels. AISI 4340 is one of the more commonly used steels when high strength is desired. It is also becoming almost standard practice to use some of the tool steels or highly alloyed maraging steels for high strength structural components. For this study high strength in a heat treated steel is arbitrarily assumed to be 300,000 psi tensile strength. A certain minimum carbon content is probably required if 300,000 psi tensile strength is to be produced in the steel by heat treatment. Since not all heats of carbon steel are sufficiently ductile at high strength levels to permit the making of meaningful tensile test~ the major effort in this thesis project has been devoted to searching for a steel that can be used as a reference material in a study of brittleness and to developing techniques to be used in working with high strength steel. Unfortunately, the search for a reference steel has not been completely successful. However, it has been possible to heat treat round tensile test bars to tensile strengths over 300,000 psi. The procedure was relatively simple and involved no protective atmosphere or elaborate fixtures for holding the samples during the heat treatment. Machining round tensile test samples required too much care and expense. It became necessary to change to a less expensive strip type sample. Strip samples of about 250,000 psi tensile strength were prepared and tested. It is believed that the testing procedure will be satisfactory for strip samples with tensile strengths over 300,000 psi when the material is obtained. A limited amount of work has been done on the preparation of samples for transmission electron microscope studies. The procedure for making thin sections requires further refinement"--Introduction, pages 1-2.
Book Synopsis A Study of the Microstructures of a Series of High Strength Steels by Electron Microscopy by : John Henry Bucher
Download or read book A Study of the Microstructures of a Series of High Strength Steels by Electron Microscopy written by John Henry Bucher and published by . This book was released on 1962 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transmission Electron Microscope Study of the Structures Produced During the First Stage of Tempering in a 1.40 Weight Per Cent Carbon Steel by : M. R. Jackson
Download or read book Transmission Electron Microscope Study of the Structures Produced During the First Stage of Tempering in a 1.40 Weight Per Cent Carbon Steel written by M. R. Jackson and published by . This book was released on 1966 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The structure of a 1.40 weight per cent carbon steel during the first stage of tempering (up to 200 C) was studied by transmission electron microscopy. Distributions consisting of either randomly arranged spherical or aligned platelike carbide particles were observed after tempering at 150 C. The origin of both of these types of distributions can be explained by heterogeneous nucleation on and growth of carbide particles along the dislocation networks of the tempered martensite.
Book Synopsis The Application of Transmission Electron Microscopy to the Study of a Low-Carbon Steel by : PR. Howell
Download or read book The Application of Transmission Electron Microscopy to the Study of a Low-Carbon Steel written by PR. Howell and published by . This book was released on 1993 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transmission electron microscopy (TEM) together with scanning electron microscopy (SEM) and optical microscopy have been employed to analyze the microstructures that develop in a copper-containing, low-carbon (0.04% by weight) HSLA-100 alloy. Specifically, the martensitic microstructures that develop in the simulated, coarse-grained heat-affected zones (HAZs) have been examined and compared with those that develop in the base plate during conventional quenching from the austenitic phase field. It has been shown that the lath martensitic packet size is increased dramatically in the HAZ as compared with the base plate. In addition, considerably more retained austenite is found in the HAZ. No evidence for the so-called granular bainite microconstituent has been found in either material. However, for cooling rates somewhat less than that experienced in the coarse-grained HAZ, a microconstituent that we term granular ferrite has been documented.
Book Synopsis Electron Fractography Handbook by : A. Phillips
Download or read book Electron Fractography Handbook written by A. Phillips and published by . This book was released on 1965 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Theses and Doctoral Dissertations in the Pure and Applied Sciences Accepted by Colleges and Universities of the United States by :
Download or read book Masters Theses and Doctoral Dissertations in the Pure and Applied Sciences Accepted by Colleges and Universities of the United States written by and published by . This book was released on 1968 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Energy Research and Development Administration. Technical Information Center Publisher : ISBN 13 : Total Pages :962 pages Book Rating :4.3/5 (129 download)
Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration. Technical Information Center
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch Publisher : ISBN 13 : Total Pages :1080 pages Book Rating :4.E/5 ( download)
Book Synopsis Japanese Science and Technology, 1983-1984 by : United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch
Download or read book Japanese Science and Technology, 1983-1984 written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch and published by . This book was released on 1985 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1987 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1983 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis A Fractographic Analysis of Some Ultra-high-strength Steels by Electron Microscopy by : John Henry Bucher
Download or read book A Fractographic Analysis of Some Ultra-high-strength Steels by Electron Microscopy written by John Henry Bucher and published by . This book was released on 1964 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Journal of the Iron and Steel Institute by : Iron and Steel Institute
Download or read book The Journal of the Iron and Steel Institute written by Iron and Steel Institute and published by . This book was released on 1969 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes sect. "A survey of literature on the manufacture and properties of iron and steel, and kindred subjects" (title varies)
Download or read book Army research task s written by and published by . This book was released on with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
