Development Of High Strength And Fracture Toughness In Steels Through Strain Induced Transformations

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Development of High Strength and Fracture Toughness in Steels Through Strain-Induced Transformations

Author : J. D. Morrison
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Development of High Strength and Fracture Toughness in Steels Through Strain-Induced Transformations by : J. D. Morrison

Download or read book Development of High Strength and Fracture Toughness in Steels Through Strain-Induced Transformations written by J. D. Morrison and published by . This book was released on 1962 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was made to determine the effects of variations in alloy content, coldworking temperature, and amount of cold work, on the tensile and toughness properties of metastable austenitic stainless steels. The purpose of this program was to arrive at an alloy composition and processing procedure that results in an optimum combination of strength and toughness in a structural sheet material that can be used in the fabrication of highly stressed structures, such as rocket motor casings. It was found that the optimum combination of high yield strength and fracture toughness is obtained by cold working alloys containing about 0.04% to0.05% carbon. The effect of post-deformation heat treatments on the properties of the cold-worked stainless steels was found to be a function of the amount of deformation. In standard Type 301 stainless steel cold reduced 40% to 50%, precipitation of fine carbides in transformed (martensitic) areas was evident after exposure to 800 F for 24 hr. (Author).

Development of High Fracture Toughness in Maraging Steels

Author : Stephen D. Antolovich
Publisher :
ISBN 13 :
Total Pages : 53 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Development of High Fracture Toughness in Maraging Steels by : Stephen D. Antolovich

Download or read book Development of High Fracture Toughness in Maraging Steels written by Stephen D. Antolovich and published by . This book was released on 1975 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: If 300 grade maraging steel is heat-treated to contain a distribution of tough austenite in an aged martensitic matrix, the fracture toughness can be improved significantly with only minimal decreases in the ultimate tensile strength. Studies have been carried out to determine the reasons for this increase. In particular the structure has been characterized by scanning (SEM) and transmission electron microscopy (TEM), plastic zone sizes and shapes have been determined by microhardness and etching techniques, plane-strain crack tip opening displacements have been measured under loading, and fracture surfaces have been examined both by scanning and replica electron fractography. In addition, a survey of the fatigue crack propagation (FCP) characteristics have been carried out. Some testing was done at -196 C. The fracture toughness of the specially treated steel was equivalent to what was obtained for conventionally treated steel at room temperature. This process was extended to the ultra high strength 350 grade steel and again a significant improvement in toughness was obtained although the magnitude of the increase was not as large as was obtained for the 300 grade steel. A model based on the energy absorbed during plastic deformation of the austenite in the plastic enclave ahead of the crack tip has been proposed and is in good agreement with the experimental results. In some cases, heat treatments were used that result in formation of metastable austenite which transforms to martensite at crack tip on loading. This is a mode of plastic deformation that is responsible for very high toughness.

Analysis of Fracture Toughness Mechanism in Ultra-fine-grained Steels

Author : Toshihiro Hanamura
Publisher : Springer
ISBN 13 : 4431544992
Total Pages : 71 pages
Book Rating : 4.4/5 (315 download)

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Book Synopsis Analysis of Fracture Toughness Mechanism in Ultra-fine-grained Steels by : Toshihiro Hanamura

Download or read book Analysis of Fracture Toughness Mechanism in Ultra-fine-grained Steels written by Toshihiro Hanamura and published by Springer. This book was released on 2014-09-04 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, advanced steel technologies mainly developed at the National Institute for Materials Science (NIMS), Japan, for structure control, mechanical properties, and the related mechanisms are introduced and discussed. NIMS has long worked on developing advanced steel techniques, namely, producing advanced steels by using only simple alloying elements such as carbon, manganese, and silicon, and also by utilizing steel scrap. The hope is that this approach will lead to a technology of a so-called steel-to-steel recycling process, with the ultimate goal of a recycling process such as an automotive-steel-to-automotive-steel recycling process to take the place of the current cascade-type recycling system. The main idea is to utilize ultra-grain refining structures and hetero structures as well as martensite structures. In particular, the focus of this book is on tensile strength and toughness of advanced steels from both the fundamental and engineering points of view. Fundamentally, a unique approach to analysis is taken, based on fracture surface energy as effective grain size is employed to better understand the mechanism of property improvement. From the engineering point of view, in fracture toughness such factors as crack tip opening displacement (CTOD) of advanced steels are evaluated in comparison with those of conventional steels.

NASA Technical Note

Author :
Publisher :
ISBN 13 :
Total Pages : 482 pages
Book Rating : 4.:/5 (319 download)

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Download or read book NASA Technical Note written by and published by . This book was released on 1966 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Technical Abstract Bulletin

Author :
Publisher :
ISBN 13 :
Total Pages : 828 pages
Book Rating : 4.E/5 ( download)

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Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 836 pages
Book Rating : 4.:/5 (31 download)

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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:

Bibliography of Scientific and Industrial Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 1698 pages
Book Rating : 4.3/5 (91 download)

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Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1965-07 with total page 1698 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Comprehensive Materials Processing

Author :
Publisher : Newnes
ISBN 13 : 0080965334
Total Pages : 5485 pages
Book Rating : 4.0/5 (89 download)

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Download or read book Comprehensive Materials Processing written by and published by Newnes. This book was released on 2014-04-07 with total page 5485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Materials Processing, Thirteen Volume Set provides students and professionals with a one-stop resource consolidating and enhancing the literature of the materials processing and manufacturing universe. It provides authoritative analysis of all processes, technologies, and techniques for converting industrial materials from a raw state into finished parts or products. Assisting scientists and engineers in the selection, design, and use of materials, whether in the lab or in industry, it matches the adaptive complexity of emergent materials and processing technologies. Extensive traditional article-level academic discussion of core theories and applications is supplemented by applied case studies and advanced multimedia features. Coverage encompasses the general categories of solidification, powder, deposition, and deformation processing, and includes discussion on plant and tool design, analysis and characterization of processing techniques, high-temperatures studies, and the influence of process scale on component characteristics and behavior. Authored and reviewed by world-class academic and industrial specialists in each subject field Practical tools such as integrated case studies, user-defined process schemata, and multimedia modeling and functionality Maximizes research efficiency by collating the most important and established information in one place with integrated applets linking to relevant outside sources

Government-wide Index to Federal Research & Development Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 760 pages
Book Rating : 4.:/5 (2 download)

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Book Synopsis Government-wide Index to Federal Research & Development Reports by :

Download or read book Government-wide Index to Federal Research & Development Reports written by and published by . This book was released on 1965-07 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Exploratory Study of the Dynamic Fracture Ductility of TRIP and 300M Steels

Author : Volker Weiss
Publisher :
ISBN 13 :
Total Pages : 66 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Exploratory Study of the Dynamic Fracture Ductility of TRIP and 300M Steels by : Volker Weiss

Download or read book Exploratory Study of the Dynamic Fracture Ductility of TRIP and 300M Steels written by Volker Weiss and published by . This book was released on 1979 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: High stress transformation plasticity offers a means of increasing the strength as well as the ductility and toughness of steels. The additional energy absorption associated with the martensitic transformation during deformation is responsible for the enhanced fracture toughness. Prior studies at Syracuse University have shown that the martensite content at fracture is a function of the test temperature and that the notch toughness is strongly temperature dependent. Gold and Koppenaal have reported that TRIP steel exhibited embrittlement at a specific strain rate and testing temperature. The studies by Azrin et al., Weiss et al. and Zackay et al. have shown that an optimum combination of strength, toughness and fatigue crack growth resistance required careful control of austenite metastability with respect to the service condition. For example, a TRIP steel that exhibits high strength and toughness under relatively low strain rates at room temperature may suffer a significant loss of uniform ductility at very high strain rates. Also the same TRIP steel may be inferior in fatigue crack propagation resistance to an ultra high strength material.

U.S. Government Research Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 156 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis U.S. Government Research Reports by :

Download or read book U.S. Government Research Reports written by and published by . This book was released on 1963 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

New Advanced High Strength Steels

Author : Mohamed Goune
Publisher : John Wiley & Sons
ISBN 13 : 1789451221
Total Pages : 420 pages
Book Rating : 4.7/5 (894 download)

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Book Synopsis New Advanced High Strength Steels by : Mohamed Goune

Download or read book New Advanced High Strength Steels written by Mohamed Goune and published by John Wiley & Sons. This book was released on 2024-01-11 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, significant developments have been made to increase the mechanical strength of steels in order to reduce the overall weight of structures, particularly in motor vehicles. Depending on the application, the increase in strength should not be at the expense of forming and in-use properties. The development of ultra-high strength steels requires a search for new trade-offs between these properties in order to optimize the final microstructure. New Advanced High Strength Steels analyzes the interactions between tensile mechanical properties and properties such as work hardening, anisotropy, resistance to rupture, fatigue life, corrosion resistance, crashworthiness, edge retention, hydrogen resistance and weldability. It also examines the links between the microstructural parameters of high-strength steels and the properties mentioned above. It highlights the metallurgical developments that have been necessary for the emergence of these new generations of steels. The book concludes with a look ahead to future developments in ultra-high strength steels

Mechcomp2

Author : Antonio J.M. Ferreira
Publisher : Società Editrice Esculapio
ISBN 13 : 8874889631
Total Pages : 204 pages
Book Rating : 4.8/5 (748 download)

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Book Synopsis Mechcomp2 by : Antonio J.M. Ferreira

Download or read book Mechcomp2 written by Antonio J.M. Ferreira and published by Società Editrice Esculapio. This book was released on 2016-05-20 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composites materials have aroused a great interest over the last few decades. Several applications of fibrous composites, functionally graded materials, laminated composites, nano-structured reinforcements, morphing structures, can be found in many engineering fields, such as aerospace, mechanical, naval and civil engineering. The necessity of lightweight structures, smart and adaptive systems, high-level strength, have led both the academic research and the manufacturing development to a recurring employment of these materials. Many journal papers and technical notes have been published extensively over the last seventy years in international scientific journals of different engineering fields. For this reason, the establishment of this second edition of Mechanics of Composites International Conference has appeared appropriate to continue what has been begun during the first edition occurred in 2014 at Stony Brook University (USA). MECHCOMP wants to be an occasion for many researchers from each part of the globe to meet and discuss about the recent advancements regarding the use of composite structures. As a proof of this event, which has taken place in Porto (Portugal), selected plenary and key-note lectures have been collected in the present book.

Society of Automotive Engineers [preprints].

Author :
Publisher :
ISBN 13 :
Total Pages : 912 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Society of Automotive Engineers [preprints]. by :

Download or read book Society of Automotive Engineers [preprints]. written by and published by . This book was released on 1963 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:

SAE Technical Paper Series

Author :
Publisher :
ISBN 13 :
Total Pages : 688 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis SAE Technical Paper Series by :

Download or read book SAE Technical Paper Series written by and published by . This book was released on 1963 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Online version: Technical papers portion of the SAE Digital Library references thousands of SAE Technical Papers covering the latest advances and research in all areas of mobility engineering including ground vehicle, aerospace, off-highway, and manufacturing technology. Sample coverage includes fuels and lubricants, emissions, electronics, brakes, restraint systems, noise, engines, materials, lighting, and more. Your SAE service includes detailed summaries, complete documents in PDF, plus document storage and maintenance

High Entropy Alloys

Author : T.S. Srivatsan
Publisher : CRC Press
ISBN 13 : 1000046974
Total Pages : 601 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis High Entropy Alloys by : T.S. Srivatsan

Download or read book High Entropy Alloys written by T.S. Srivatsan and published by CRC Press. This book was released on 2020-07-21 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a cohesive overview of innovations, advances in processing and characterization, and applications for high entropy alloys (HEAs) in performance-critical and non-performance-critical sectors. It covers manufacturing and processing, advanced characterization and analysis techniques, and evaluation of mechanical and physical properties. With chapters authored by a team of internationally renowned experts, the volume includes discussions on high entropy thermoelectric materials, corrosion and thermal behavior of HEAs, improving fracture resistance, fatigue properties and high tensile strength of HEAs, HEA films, and more. This work will be of interest to academics, scientists, engineers, technologists, and entrepreneurs working in the field of materials and metals development for advanced applications. Features Addresses a broad spectrum of HEAs and related aspects, including manufacturing, processing, characterization, and properties Emphasizes the application of HEAs Aimed at researchers, engineers, and scientists working to develop materials for advanced applications T.S. Srivatsan, PhD, Professor of Materials Science and Engineering in the Department of Mechanical Engineering at the University of Akron (Ohio, USA), earned his MS in Aerospace Engineering in 1981 and his PhD in Mechanical Engineering in 1984 from the Georgia Institute of Technology (USA). He has authored or edited 65 books, delivered over 200 technical presentations, and authored or co-authored more than 700 archival publications in journals, book chapters, book reviews, proceedings of conferences, and technical reports. His RG score is 45 with a h-index of 53 and Google Scholar citations of 9000, ranking him to be among the top 2% of researchers in the world. He is a Fellow of (i) the American Society for Materials International, (ii) the American Society of Mechanical Engineers, and (iii) the American Association for Advancement of Science. Manoj Gupta, PhD, is Associate Professor of Materials at NUS, Singapore. He is a former Head of Materials Division of the Mechanical Engineering Department and Director Designate of Materials Science and Engineering Initiative at NUS, Singapore. In August 2017, he was highlighted among the Top 1% Scientists of the World by the Universal Scientific Education and Research Network and in the Top 2.5% among scientists as per ResearchGate. In 2018, he was announced as World Academy Championship Winner in the area of Biomedical Sciences by the International Agency for Standards and Ratings. A multiple award winner, he actively collaborates/visits as an invited researcher and visiting and chair professor in Japan, France, Saudi Arabia, Qatar, China, the United States, and India.

Maraging Steels

Author : W Sha
Publisher : Elsevier
ISBN 13 : 184569693X
Total Pages : 216 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Maraging Steels by : W Sha

Download or read book Maraging Steels written by W Sha and published by Elsevier. This book was released on 2009-10-26 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maraging steels are high-strength steels combined with good toughness. They are used particularly in aerospace and tooling applications. Maraging refers to the ageing of martensite, a hard microstructure commonly found in steels.Maraging steels: modelling of microstructure, properties and applications covers the following topics: Introduction to maraging steels; Microstructure of maraging steels; Mechanical properties of maraging steels; Thermodynamic calculations for quantifying the phase fraction and element partition in maraging systems and precipitation hardening steels; Quantification of phase transformation kinetics in maraging steels; Quantification of age hardening in maraging steels; Maraging steels and overageing; Precipitation hardening stainless steel; Applications of artificial neural network on modelling maraging steel properties.With its distinguished authors, Maraging steels: modelling of microstructure, properties and applications is a standard reference for industry and researchers concerned with maraging steels and modelling as well as users of maraging steels in the aerospace and tooling sectors. The book includes both conventional maraging steels and precipitation hardened (PH) stainless steels. - Provides an overview of maraging steels including microstructure and mechanical properties - Reviews thermodynamic calculations for quantifying the phase fraction and element partition in maraging steels - Includes chapters on the quantification of phase transformation kinetics and age hardening in maraging steels