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Microstructure Fracture And Fatigue Behavior Of Ti Nb High Strength Low Alloy Hsla Steels
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Book Synopsis Microstructure-fracture and Fatigue Behavior of Ti-Nb High Strength Low Alloy (HSLA) Steels by : Kaushal R. Prayakarao
Download or read book Microstructure-fracture and Fatigue Behavior of Ti-Nb High Strength Low Alloy (HSLA) Steels written by Kaushal R. Prayakarao and published by . This book was released on 2012 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of the Fracture Behavior of Fine-Grained High-Strength Low-Alloy (HSLA) Steels and Iron-Base Alloys Under Low-Temperature and Mechanical Environments by : LR. Cutler
Download or read book Characterization of the Fracture Behavior of Fine-Grained High-Strength Low-Alloy (HSLA) Steels and Iron-Base Alloys Under Low-Temperature and Mechanical Environments written by LR. Cutler and published by . This book was released on 1981 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper discusses the use of different fractographic techniques to characterize the fracture morphology of high-strength low-alloy (HSLA) steels with a variety of fine-grained microstructures and iron-base alloys strengthened by intermetallic precipitates in order to understand the various fracture mechanisms controlling their fracture resistance under low-temperature and mechanical environments. The fractographic techniques that have been used are conventional techniques, scanning electron fractography, sectioning techniques, and a newly developed chemical polishing method in conjunction with the Nomarski interphase contrast technique. The mechanical tests that have been used are tensile, notched-tensile, instrumented impact testing with precracked Charpy V-notch specimens, low-cycle fatigue, and high-cycle fatigue. A comprehensive characterization of the fracture morphology of the HSLA steels developed for arctic applications has resulted. Important features of the fracture (such as "splitting," striations, ductile tearing, quasi-cleavage, microvoid coalescence, unit fracture path, persistent slip bands) have been identified and related to the mechanical behavior of the materials.
Book Synopsis A Study of Microstructure, Quasi-static Response, Fatigue, Deformation and Fracture Behavior of High Strength Alloy Steels by : Manigandan Kannan
Download or read book A Study of Microstructure, Quasi-static Response, Fatigue, Deformation and Fracture Behavior of High Strength Alloy Steels written by Manigandan Kannan and published by . This book was released on 2014 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: The history of steel dates back to the 17th century and has been instrumental in the betterment of every aspect of our lives ever since, from the pin that holds the paper together to the Automobile that takes us to our destination steel touch everyone every day. Path breaking improvements in manufacturing techniques, access to advanced machinery and understanding of factors like heat treatment, corrosion resistance have aided in the advancement in the properties of steel in the last few years. In this dissertation document the results of a study aimed at the influence of alloy chemistry, processing and influence of the quasi static and fatigue behavior of seven alloy steels is discussed. The microstructure of the as-received steel was examined and characterized for the nature and morphology of the grains and the presence of other intrinsic features in the microstructure. The tensile, cyclic fatigue and bending fatigue tests were done on a fully automated closed-loop servo-hydraulic test machine at room temperature. The failed samples of high strength steels were examined in a scanning electron microscope for understanding the fracture behavior, especially the nature of loading be it quasi static, cyclic fatigue or bending fatigue. The quasi static and cyclic fatigue fracture behavior of the steels examined coupled with various factors contributing to failure are briefly discussed in light of the conjoint and mutually interactive influences of intrinsic microstructural effects, nature of loading, and stress (load)-deformation-microstructural interactions.
Book Synopsis Effect of Microstructure on the Fracture Behaviour of High-strength Low-alloy Steels by : David Michael Kindel
Download or read book Effect of Microstructure on the Fracture Behaviour of High-strength Low-alloy Steels written by David Michael Kindel and published by . This book was released on 1984 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Metallurgical Origins of Fracture Toughness and Microstructure and Fracture Toughness of an HSLA (High-Strength/Low-Alloy) Steel by : A. R. Rosenfield
Download or read book Metallurgical Origins of Fracture Toughness and Microstructure and Fracture Toughness of an HSLA (High-Strength/Low-Alloy) Steel written by A. R. Rosenfield and published by . This book was released on 1985 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report discusses effects of composition and heat treatment on the fracture behavior of a group of steels based on ASTM A712A. Very low transition temperatures were observed in a number of cases. However, adverse effects of Cu on the K sub Ic value for cleavage and on the sharpness of the ductile/brittle transition are noted. At ambient temperatures, overaged Cu particles are beneficial for ductile fracture resistance. A new experimental method of evaluating the relative contributions of opening and shear to ductile crack growth was developed, along with a superdislocation model of the process. Keywords: Steel, high-strength/low alloy; Microstructural effects; Compositional effects; Fracture statistics; Constitutive Modelling.
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 1994 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Fatigue Behavior, Fatigue Damage and Fatigue Fracture Surfaces of Two High Strength Steels by : Charles Gilbert Lester (IV.)
Download or read book Analysis of Fatigue Behavior, Fatigue Damage and Fatigue Fracture Surfaces of Two High Strength Steels written by Charles Gilbert Lester (IV.) and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Building fuel efficient automobiles is increasingly important due to the rising cost of energy. One way to improve fuel efficiency is to reduce the overall automobile weight. Weight reductions using steel components are desirable because of easy integration into existing manufacturing systems. Designing components with Advanced High Strength Steels (AHSS) has allowed for material reductions, while maintaining strength requirements. Two Advanced High Strength steel microstructures investigated in this research utilize different strengthening mechanisms to obtain a desired tensile strength grade of 590MPa. One steel, HR590, utilizes precipitation strengthening to refine the grain size and harden the steel. The other steel, HR590DP, utilizes a dual phase microstructure consisting of hardened martensite constituents in a ferrite matrix. The steels are processed to have the same tensile strength grade, but exhibit different fatigue behavior. The central objective of this research is to characterize and compare the fatigue behavior of these two steels. The results show the dual phase steel work hardens at a low fatigue life. The precipitation strengthened microstructure shows hardening at low strain amplitudes, softening at intermediate strain amplitudes and little to no effect at high strain amplitudes. These different fatigue responses are characterized and quantified in this research. Additionally, observations showing the fracture surfaces and the bulk microstructure are analyzed.
Author :Christian Rudolf Sohar Publisher :Springer Science & Business Media ISBN 13 :3642216463 Total Pages :234 pages Book Rating :4.6/5 (422 download)
Book Synopsis Lifetime Controlling Defects in Tool Steels by : Christian Rudolf Sohar
Download or read book Lifetime Controlling Defects in Tool Steels written by Christian Rudolf Sohar and published by Springer Science & Business Media. This book was released on 2011-08-12 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis Christian Sohar describes his investigation into the gigacycle fatigue behavior of tool steels. In an interdisciplinary approach he uses knowledge and methods from a wide variety of disciplines including materials science, metallurgy, chemistry, physics and mechanical engineering. Christian gives a general introduction into steel tools and fatigue in materials. Later he extensively discusses the experimental techniques and results. Indeed it is the detail of the content in this thesis which makes it an invaluable resource for students entering the field and scientists working in related disciplines. Overall, the thesis helps us understand more about the mechanical behavior of metallic materials with complex microstructure and high hardness.
Book Synopsis Microstructure and Fracture Toughness of a High-strength Low-alloy Steel by : Marie Therese Miglin
Download or read book Microstructure and Fracture Toughness of a High-strength Low-alloy Steel written by Marie Therese Miglin and published by . This book was released on 1982 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fatigue behavior in hot rolled plain-carbon and high strength low alloy steels by : Jeffrey Perout (J.)
Download or read book Fatigue behavior in hot rolled plain-carbon and high strength low alloy steels written by Jeffrey Perout (J.) and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Deformation and Fracture Behavior of Ti-Al-Nb-(Cr, Mo) Alloys with a ... + ... Microstructure at Ambient Temperature by : Michael Steiner Kesler
Download or read book Deformation and Fracture Behavior of Ti-Al-Nb-(Cr, Mo) Alloys with a ... + ... Microstructure at Ambient Temperature written by Michael Steiner Kesler and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, attempts to further improve the mechanical properties of these alloys were undertaken by reducing the volume fraction of the ...-phase and controlling the scale of the ... + ... microstructure through the aging of a meta-stable parent phase, the ...-phase, that was quenched-in to room temperature. Additions of ...-stabilizing elements, Cr and Mo, were needed in order to quench-in the ...-phase. The room temperature mechanical properties were evaluated by compression, Vickers' indentation and single edge notch bend tests at room temperature. The formation of the large ...-laths at prior ...-phase grain boundaries was found to be detrimental to ductility due to strain localization in this coarsened region of the microstructure. Furthermore, samples aged from ...-phase single crystals proved to have excellent combinations of strength and ductility under compression. In the single crystals, microcracking did not develop until much larger plastic strains were reached. Lowering the volume fraction of the ...-phase proved to enhance the fracture toughness in these alloys.
Book Synopsis The Quasi-static, Cyclic Fatigue and Final Fracture Behavior of High Strength Stainless Steel by : Dheeraj Kondisetti
Download or read book The Quasi-static, Cyclic Fatigue and Final Fracture Behavior of High Strength Stainless Steel written by Dheeraj Kondisetti and published by . This book was released on 2016 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The history of steel dates back to the 17th century. Steel has been instrumental in the betterment of every aspect of our lives ever since, from the pin that holds the paper together to the reinforcement in the construction industry. Path breaking improvements in manufacturing techniques, access to advanced machinery and understanding of factors like heat treatment and corrosion resistance have aided in the advancement of the properties of steel in the last few years. In this thesis, the results of a study aimed at determining the influence of temperature and influence of the quasi static and fatigue behavior of stainless steel 2304 are discussed. The microstructure of the as-received steel was examined as a reference and characterized for the nature and morphology of the grains and the presence of other intrinsic features in the microstructure. The tensile, cyclic fatigue and bending fatigue tests were done on a fully automated closed-loop servo-hydraulic test machine at room temperature. The failed samples of this high strength steel were examined in a scanning electron microscope for understanding the fracture behavior, especially the nature of loading such as quasi static , cyclic fatigue or bending fatigue . The quasi static and cyclic fatigue fracture behavior of the steels examined coupled with various factors contributing to failure are briefly discussed in light of the conjoint and mutually interactive influences of intrinsic microstructural effects, nature of loading, and stress (load)-deformation-microstructural interactions.
Book Synopsis Microstructure and Fracture Toughness of Cast and Forged Ultra-High-Strength, Low-Alloy (UHSLA) Steels by : J. Buchar
Download or read book Microstructure and Fracture Toughness of Cast and Forged Ultra-High-Strength, Low-Alloy (UHSLA) Steels written by J. Buchar and published by . This book was released on 1990 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes the fracture toughness and microstructure relations for ultra-high-strength, low-alloy (UHSLA) steels corresponding to AISI 4340 composition. The steels were either cast or forged, heat treated at austenitizing temperatures from 840 to 1100°C, oil quenched and tempered at 180 and 650°C. Fracture toughness, tensile, and Charpy impact toughness tests, and testing of apparent fracture toughness under the influence of notch root radius, were performed simultaneously. Investigation of microstructures and corresponding mechanical properties, as well as fractographic examinations and evaluation of chemical heterogeneity, made it possible to elucidate the alteration of fracture behavior.
Book Synopsis High-Strength Low-Alloy Steels by : Ricardo Branco
Download or read book High-Strength Low-Alloy Steels written by Ricardo Branco and published by Mdpi AG. This book was released on 2021-10-25 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern industry, driven by the recent environmental policies, faces an urgent need for the production of lighter and more environmentally-friendly components. High-strength low-alloy steels are key materials in this challenging scenario because they provide a balanced combination of properties, such as strength, toughness, formability, weldability, and corrosion resistance. These features make them ideal for a myriad of engineering applications which experience complex loading conditions and aggressive media, such as aeronautical and automotive components, railway parts, offshore structures, oil and gas pipelines, power transmission towers, and construction machinery, among others. The goal of this book is to foster the dissemination of the latest research devoted to high-strength low-alloy (HSLA) steels from different perspectives.
Download or read book Physics Briefs written by and published by . This book was released on 1992 with total page 1812 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The effect of microstructure on the fatigue behavior of fe-c-x alloys by : Gary J. Shiflet
Download or read book The effect of microstructure on the fatigue behavior of fe-c-x alloys written by Gary J. Shiflet and published by . This book was released on 1985 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Abstracts written by and published by . This book was released on 1998 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt:
