Control Of Dimensions In High Strength Heat Treated Steel Parts
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Control Of Dimensions In High Strength Heat Treated Steel Parts
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Author : A. R. Elsea
language : en
Publisher:
Release Date : 1961
Control Of Dimensions In High Strength Heat Treated Steel Parts written by A. R. Elsea and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Steel categories.
THE ACHIEVEMENT AND MAINTENANCE OF DESIRED DIMENSIONS IN COMPLEX, PRECISION-BUILT STRUCTURES, SUCH AS ROCKET-MOTOR CASES, ARE CRITICAL AND TECHNICALLY INVOLVED PROBLEMS. Their proper functioning demands close dimensional tolerances. Dimensional stability is extremely difficult toACHIEVE IN STEELS AT ULTRAHIGH STRENGTH LEVELS. The problem stems from interacting metallurgical factors which manifest themselves in volumetric and shape changes. The principal sources of size change are the changes in specific volume accompanying the phase transformations which occur in hardening and tempering. Distortion occurs when a part deforms in response to stress. The problem of dimensional instability is analyzed, the factors involved are discussed, and recommendations are made regarding the control of these factors. (Author).
A Review Of Dimensional Instability In Metals
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Author : F. C. Holden
language : en
Publisher:
Release Date : 1964
A Review Of Dimensional Instability In Metals written by F. C. Holden and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Stability categories.
The Effects Of Heat Treating And Testing Environments On The Properties Of Refractory Metals
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Author : F. F. Schmidt
language : en
Publisher:
Release Date : 1964
The Effects Of Heat Treating And Testing Environments On The Properties Of Refractory Metals written by F. F. Schmidt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Heat resistant alloys categories.
Studies on the effects of heat-treating and testing environments for the refractory metals have been limited primarily to the unalloyed metals and a few alloys of columbium and molybdenum. Most of this work has relied on compositional changes as a means of assesing the effects of various environments on these materials. It has been shown that all of these materials are subject to contamination or purification in various test environments. The residual gases H2, CO(or N2), and H20, constitute the major sources of contamination when testing columbium and tantalum materials in vacua. Under the same conditions, molybdenum and molybdenum alloys containing carbon and reactive-metal additions are subject to serious decarburization. Nonreactive gaseous atmospheres also cause serious changes in material chemistry, since small quantities of noxious gases are contained in the atmosphere. Several promising methods of circumventing material chemistry changes during various longtime, high-temperature exposures are being used and/or evaluated. (Author).
Cracking In High Strength Steel Weldments
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Author : P. A. Kammer
language : en
Publisher:
Release Date : 1964
Cracking In High Strength Steel Weldments written by P. A. Kammer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Steel categories.
Weldment cracking is a broad complex field. Even if one considers only cracking of steel weldments, the problems range from cracking at temperatures near the solidus during welding to cracking at room temperature days, weeks, or months after welding is completed. Numerous reports of investigations in this field are contained in the published and unpublished literature. However, most of these reports cover only a particular problem in a specific area of the broad field of weldment cracking. This review attempts to cover the major aspects of the entire field of weldment cracking. Necessarily, the review is for the most part general, only being specific in a few instances to illustrate a point. (Author).
Hydrogen Induced Delayed Brittle Failures Of High Strength Steels
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Author : A. R. Elsea
language : en
Publisher:
Release Date : 1964
Hydrogen Induced Delayed Brittle Failures Of High Strength Steels written by A. R. Elsea and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Steel categories.
Nuclear Science Abstracts
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Author :
language : en
Publisher:
Release Date : 1975-12
Nuclear Science Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975-12 with Nuclear energy categories.
Background For The Development Of Materials To Be Used In High Strength Steel Structural Weldments
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Author : Battelle Memorial Institute
language : en
Publisher:
Release Date : 1961
Background For The Development Of Materials To Be Used In High Strength Steel Structural Weldments written by Battelle Memorial Institute and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Steel alloys categories.
Hot Cold Working Of Steel To Improve Strength
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Author : Charles W. Marschall
language : en
Publisher:
Release Date : 1963
Hot Cold Working Of Steel To Improve Strength written by Charles W. Marschall and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with Steel categories.
The Effects Of High Pressure High Temperature Hydrogen On Steel
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Author : Ellis E. Fletcher
language : en
Publisher:
Release Date : 1964
The Effects Of High Pressure High Temperature Hydrogen On Steel written by Ellis E. Fletcher and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Steel categories.
This report deals with the deleterious effects of hydrogen gas on steel at elevated temperatures and/or pressures. Hydrogen attack on steels is manifest as decarburization, intergranular fissuring, or blistering. These conditions result in lowered tensile strength, ductility, and impact strength. The reaction of hydrogen with iron carbide to form methane is probably the most important chemical reaction involved in the attack on steel by hydrogen. Attack of steel at elevated temperatures and pressures is limited or prevented by the following measures: (1) use of steel alloyed with strong carbide-forming elements, (2) use of liners of resistant alloy steels, and (3) substitution of resistant nonferrous alloys.
Thermal Radiative Properties Of Selected Materials
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Author : W. D. Wood
language : en
Publisher:
Release Date : 1962
Thermal Radiative Properties Of Selected Materials written by W. D. Wood and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Materials categories.