Thermomechanical Processing of High-Strength Low-Alloy Steels
Thermomechanical Processing of High-Strength Low-Alloy Steels

Author: Imao Tamura

Publisher: Butterworth-Heinemann

Published: 2013-10-22

Total Pages: 257

ISBN-13: 1483164055

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Thermomechanical Processing of High-Strength Low-Alloy Steels considers some advanced techniques and metallurgical bases for controlled-rolling. This book contains 12 chapters. In Chapter 1, the purpose of thermomechanical processing and historical survey is described, while in Chapter 2, the kinetics of phase transformations and refinement of grain size in steels are elaborated. The techniques and metallurgical bases for controlled-rolling in the recrystallization, non-recrystallization, and (? + y) regions are reviewed in Chapters 3 to 5. Chapters 6 and 7 discuss the deformation resistance during hot-rolling and restoration processes. The phase transformations during cooling following hot-rolling are mentioned in Chapter 8, followed by a summarization of the effects of alloying elements in Chapter 9. Chapters 10 and 11 deal with the mechanical properties of controlled-rolled steel and prediction and control of microstructure and properties by thermomechanical processes. The problems faced and possibilities for future developments are stated in the last chapter. This publication is recommended for physicists, metallurgists, and researchers concerned with controlled-rolling, including non-specialists who have some knowledge of metallurgy.

Properties of Some Precipitation-Hardening Stainless Steels and Low-Alloy High-Strength Steels at Very Low Temperatures
Properties of Some Precipitation-Hardening Stainless Steels and Low-Alloy High-Strength Steels at Very Low Temperatures

Author: L. P. Rice

Publisher:

Published: 1961

Total Pages: 12

ISBN-13:

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The cryogenic properties of materials have assumed great importance since the development of the liquid-fueled rocket engine as a prime propulsion system. A great deal of work is under way in a number of laboratories, including Battelle Memorial Institute, to determine the mechanical properties of materials to be used at liquid oxygen and liquid hydrogen temperatures. Of special interest are a number of alloys such as the precipitation-hardening stainless steels and the high-strength low-alloy steels being used in missiles and aircraft now in production. These steels possess high strength-to-weight ratios and are generally heat treated so as to have high strength at room and moderately elevated temperatures. Mechanical properties of metals and alloys measured at cryogenic temperatures often reveal extreme brittleness. It is for this reason that the selection or use of high-strength metals for low-temperature applications must be based on mechanical properties determined at the operating temperatures. This paper contains data on the cryogenic properties of several precipitation-hardening stainless steels and high-strength low-alloy steels from room temperature to -423 F.

A Comparative Study of the Effect of Low Temperature on the Fracture Toughness and Cyclic Properties of Two Candidate High-Strength Low-Alloy Steels for Arctic Pipeline Applications
A Comparative Study of the Effect of Low Temperature on the Fracture Toughness and Cyclic Properties of Two Candidate High-Strength Low-Alloy Steels for Arctic Pipeline Applications

Author: MR. Krishnadev

Publisher:

Published: 1981

Total Pages: 7

ISBN-13:

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Because of the need for a better understanding of the effect of Arctic low temperature environments on the mechanical behavior of high-strength low-alloy (HSLA) steels, a comparative study has been undertaken to evaluate the effect of low temperature on the mechanical properties of two candidate steels, columbium-molybdenum "acicular ferrite" HSLA steel and high-columbium HSLA steel. The paper presents the data relating to the effect of low temperature on the mechanical properties, namely, dynamic fracture toughness KId properties, through instrumented impact testing of precracked Charpy V-notch samples and cyclic properties of the two steels. It also discusses the results in terms of their significance to material specification, selection, and performance criteria for safe and economical transportation of petroleum resources from the Canadian Arctic.

An Evaluation of the Effect of Low Temperatures on Mechanical Properties of a Commercial Steel to be Used in the Arctic
An Evaluation of the Effect of Low Temperatures on Mechanical Properties of a Commercial Steel to be Used in the Arctic

Author: MR. Krishnadev

Publisher:

Published: 1980

Total Pages: 6

ISBN-13:

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The effect of low temperatures on the mechanical behavior of a commercial low-alloy high-strength age-hardenable steel, IN-787, has been evaluated. The results indicate that the steel has remarkably good properties (yield strength, ultimate tensile strength, ductility, notch sensitivity ratio, and high cycle fatigue) in low-temperature environments. The steel retains its good mechanical characteristics even in the aged condition although there is an increase in the yield strength. It has been suggested that it would be useful to include the effect of low temperatures (at least the lowest service temperature) on the mechanical properties of materials in the codes and standards used for selecting steels for use in the Arctic.