The Effect of Aging Treatment on the Microstructure and Properties of Copper-Precipitation Strengthened HSLA (High Strength Low Alloy) Steel
The Effect of Aging Treatment on the Microstructure and Properties of Copper-Precipitation Strengthened HSLA (High Strength Low Alloy) Steel

Author:

Publisher:

Published: 1988

Total Pages: 0

ISBN-13:

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The high strength low alloy (HSLA) steels which are being developed as replacements for the HY family of steels are low carbon steels which derive their strength in part due to the precipitation of fine coherent copper particles formed during a quench and aging heat treatment. HSLA-100 is being developed to meet the strength and toughness requirements of HY-100 but can easily welded without preheat, thereby reducing fabrication costs. This investigation uses light and electron microscopy for microstructural characterization while tensile, Charpy, and hardness tests are relied upon for the mechanical properties. The microstructure and mechanical characteristics of HSLA-100 after aging at several different temperatures was correlated. A high ductility and the minimum 100 ksi yield strength was found after aging at 675 C, although this temperature was found to be close to the low eutectoid temperature displayed by HSLA-100. Splitting was observed in the tensile fracture surfaces but the mechanical properties were not adversely affected. (jes).

The Effect of Aging Treatment on the Microstructure and Properties of Copper-Precipitation Strengthened HSLA (High Strength Low Alloy) Steel
The Effect of Aging Treatment on the Microstructure and Properties of Copper-Precipitation Strengthened HSLA (High Strength Low Alloy) Steel

Author: Martin H. Heinze

Publisher:

Published: 1988

Total Pages: 65

ISBN-13:

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The high strength low alloy (HSLA) steels which are being developed as replacements for the HY family of steels are low carbon steels which derive their strength in part due to the precipitation of fine coherent copper particles formed during a quench and aging heat treatment. HSLA-100 is being developed to meet the strength and toughness requirements of HY-100 but can easily welded without preheat, thereby reducing fabrication costs. This investigation uses light and electron microscopy for microstructural characterization while tensile, Charpy, and hardness tests are relied upon for the mechanical properties. The microstructure and mechanical characteristics of HSLA-100 after aging at several different temperatures was correlated. A high ductility and the minimum 100 ksi yield strength was found after aging at 675 C, although this temperature was found to be close to the low eutectoid temperature displayed by HSLA-100. Splitting was observed in the tensile fracture surfaces but the mechanical properties were not adversely affected. (jes).

EPD Congress 2016
EPD Congress 2016

Author: Antoine Allanore

Publisher: Springer

Published: 2016-12-15

Total Pages: 183

ISBN-13: 3319481118

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EPD Congress is an annual collection that addresses extraction and processing metallurgy. The papers in this book are drawn from symposia held at the 2016 Annual Meeting of The Minerals, Metals & Materials Society. The 2016 edition includes papers from the following symposia: •Materials Processing Fundamentals •Advanced Characterization Techniques for Quantifying and Modeling Deformation

Advances in Microalloyed Steels
Advances in Microalloyed Steels

Author: Pello Uranga

Publisher: MDPI

Published: 2021-03-04

Total Pages: 236

ISBN-13: 3036501320

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In response to the demanding requirements of different sectors, such as construction, transportation, energy, manufacturing, and mining, new generations of microalloyed steels are being developed and brought to market. The addition of microalloying elements, such as niobium, vanadium, titanium, boron, and/or molybdenum, has become a key tool in the steel industry to reach economically-viable grades with increasingly higher mechanical strength, toughness, good formability, and weldable products. The challenges that microalloying steel production faces can be solved with a deeper understanding of the effects that these microalloying additions and combinations of them have during the different steps of the steelmaking process.

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.