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The Micromechanisms Of Cleavage Fracture And Their Relationship To Fracture Toughness In A Bainitic Low Allow Steel
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Book Synopsis The Micromechanisms of Cleavage Fracture and Their Relationship to Fracture Toughness in a Bainitic Low Allow Steel by : H. Kotilainen
Download or read book The Micromechanisms of Cleavage Fracture and Their Relationship to Fracture Toughness in a Bainitic Low Allow Steel written by H. Kotilainen and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Micromechanisms of Cleavage Fracture and Their Relationship to Fracture Toughness in a Bainitic Low Alloy Steel by : Heikki Kotilainen
Download or read book The Micromechanisms of Cleavage Fracture and Their Relationship to Fracture Toughness in a Bainitic Low Alloy Steel written by Heikki Kotilainen and published by . This book was released on 1980 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Micromechanicsms of Cleavage Fracture and Their Relationship to Fracture Toughness in a Bainitic Low Alloy Steel by : Heikki Kotilainen
Download or read book The Micromechanicsms of Cleavage Fracture and Their Relationship to Fracture Toughness in a Bainitic Low Alloy Steel written by Heikki Kotilainen and published by . This book was released on 1980 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Micromechanism of Cleavage Fracture of Metals by : Jianhong Chen
Download or read book Micromechanism of Cleavage Fracture of Metals written by Jianhong Chen and published by Butterworth-Heinemann. This book was released on 2014-09-15 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book the authors focus on the description of the physical nature of cleavage fracture to offer scientists, engineers and students a comprehensive physical model which vividly describes the cleavage microcracking processes operating on the local (microscopic) scale ahead of a defect. The descriptions of the critical event and the criteria for cleavage fracture will instruct readers in how to control the cleavage processes and optimize microstructure to improve fracture toughness of metallic materials. Physical (mechanical) processes of cleavage fracture operating on the local (microscopic) scale, with the focus on the crack nucleation and crack propagation across the particle/grain and grain/grain boundaries Critical event, i.e., the stage of greatest difficulty in forming the microcrack, which controls the cleavage fracture Criteria triggering the cleavage microcracking with incorporation of the actions of macroscopic loading environment into the physical model Effects of microstructure on the cleavage fracture, including the effects of grain size, second phase particles and boundary Comprehensive description of the brittle fracture emerging in TiAl alloys and TiNi memory alloys
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 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Micromechanisms and Toughness for Cleavage Fracture of Steel by : A. R. Rosenfield
Download or read book Micromechanisms and Toughness for Cleavage Fracture of Steel written by A. R. Rosenfield and published by . This book was released on 1986 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete understanding of the fracture mechanisms of steel in the ductile/brittle transition region requires analysis not only of crack initiation, but also of crack propagation. This paper reviews micrographic and fractographic experiments that give insight into both phenomena, and suggests a frame-work through which both may be related. Unstable cleavage crack initiation can occur after some blunting of the original fatigue precrack or after some stable crack growth. In either event, instability appears to be triggered by the fracture of a brittle micro-constituent ahead of the precrack. The large scatter in reported KIc values within the transition region reflects the size distribution and relative scarcity of these trigger particles. While a large number of models have attempted to correlate toughness in the ductile/brittle transition regime to events occurring ahead of the crack tip, surprisingly little attention has been paid to events occurring behind the crack front. Fractographic evidence as well as metallographic sectioning of arrested cracks show that the mechanism of rapid crack propagation by cleavage is affected strongly by partial crack-plane deflection which leaves unbroken ligaments in its wake. The tearing of these ligaments by dimple-rupture is the dominant energy-absorbing mechanism. Etch-pit experiments using an Fe-Si alloy show that the crack-tip stress intensity based on plastic zone size is extremely low. Keywords: HSLA(High Strength Low Alloy), Ductile fracture, Shear fracture, Fracture toughness.
Book Synopsis The Effect of Microstructure on the Fracture Toughness of Low-alloy Steels by : Syavash Ensha
Download or read book The Effect of Microstructure on the Fracture Toughness of Low-alloy Steels written by Syavash Ensha and published by . This book was released on 1974 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theoretical model has been used to relate the cleavage fracture toughness of the low-alloy steels to their microstructure. The cleavage fracture toughness of low-alloy steels depends upon three metallurgical parameters: the microscopic cleavage strength, the yield strength, and the effective root radius. Variations in fracture toughness with microstructure can be explained through the effect of the microstructure on these parameters. The major objective of this investigation has been the study of the effect of microstructural variables on these parameters, and hence the effect of microstructure on fracture toughness. The theoretical model for the cleavage fracture toughness of the low-alloy steels can be successfully applied provided the assumptions are not strongly violated. This requires low microscopic cleavage strength/yield strength ratio values and low work-hardening rates. Lower temperatures and higher strain rates both favor these conditions. (Modified author abstract).
Book Synopsis Heavy-section Steel Technology Program Quarterly Progress Report for January-March 1981 by : G. D. Whitman
Download or read book Heavy-section Steel Technology Program Quarterly Progress Report for January-March 1981 written by G. D. Whitman and published by . This book was released on 1981 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Theory of Critical Distances by : David Taylor
Download or read book The Theory of Critical Distances written by David Taylor and published by Elsevier. This book was released on 2010-07-07 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: Critical distance methods are extremely useful for predicting fracture and fatigue in engineering components. They also represent an important development in the theory of fracture mechanics. Despite being in use for over fifty years in some fields, there has never been a book about these methods – until now. So why now? Because the increasing use of computer-aided stress analysis (by FEA and other techniques) has made these methods extremely easy to use in practical situations. This is turn has prompted researchers to re-examine the underlying theory with renewed interest. The Theory of Critical Distances begins with a general introduction to the phenomena of mechanical failure in materials: a basic understanding of solid mechanics and materials engineering is assumed, though appropriate introductory references are provided where necessary. After a simple explanation of how to use critical distance methods, and a more detailed exposition of the methods including their history and classification, the book continues by showing examples of how critical distance approaches can be applied to predict fracture and fatigue in different classes of materials. Subsequent chapters include some more complex theoretical areas, such as multiaxial loading and contact problems, and a range of practical examples using case studies of real engineering components taken from the author’s own consultancy work. The Theory of Critical Distances will be of interest to a range of readers, from academic researchers concerned with the theoretical basis of the subject, to industrial engineers who wish to incorporate the method into modern computer-aided design and analysis. Comprehensive collection of published data, plus new data from the author's own laboratories A simple 'how-to-do-it' exposition of the method, plus examples and case studies Detailed theoretical treatment Covers all classes of materials: metals, polymers, ceramics and composites Includes fracture, fatigue, fretting, size effects and multiaxial loading
Author :The Minerals, Metals & Materials Society (TMS) Publisher :John Wiley & Sons ISBN 13 :1119027985 Total Pages :952 pages Book Rating :4.1/5 (19 download)
Book Synopsis Proceedings of the 2014 Energy Materials Conference by : The Minerals, Metals & Materials Society (TMS)
Download or read book Proceedings of the 2014 Energy Materials Conference written by The Minerals, Metals & Materials Society (TMS) and published by John Wiley & Sons. This book was released on 2015-04-15 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt: This DVD contains a collection of papers presented at EnergyMaterials 2014, a conference organized jointly by The ChineseSociety for Metals (CSM) and The Minerals, Metals & MaterialsSociety (TMS), and held November 4-6, 2014, in Xi’an, ShaanxiProvince, China. With the rapid growth of the world’s energyproduction and consumption, the important role of energy materialshas achieved worldwide acknowledgement. Material producers andconsumers constantly seek the possibility of increasing strength,improving fabrication and service performance, simplifyingprocesses, and reducing costs. Energy Materials 2014 has provided aforum for academics, researchers, and engineers around the world toexchange state-of-the-art development and information on issuesrelated to energy materials. The papers on the DVD are organized around the followingtopics: Materials for Coal-Based Systems Materials for Gas Turbine Systems Materials for Nuclear Systems Materials for Oil and Gas Materials for Pressure Vessels
Book Synopsis From Charpy to Present Impact Testing by : D. Francois
Download or read book From Charpy to Present Impact Testing written by D. Francois and published by Elsevier. This book was released on 2002-06-18 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: From Charpy to Present Impact Testing contains 52 peer-reviewed papers selected from those presented at the Charpy Centenary Conference held in Poitiers, France, 2-5 October 2001. The name of Charpy remains associated with impact testing on notched specimens. At a time when many steam engines exploded, engineers were preoccupied with studying the resistance of steels to impact loading. The Charpy test has provided invaluable indications on the impact properties of materials. It revealed the brittle ductile transition of ferritic steels. The Charpy test is able to provide more quantitative results by instrumenting the striker, which allows the evolution of the applied load during the impact to be determined. The Charpy test is of great importance to evaluate the embrittlement of steels by irradiation in nuclear reactors. Progress in computer programming has allowed for a computer model of the test to be developed; a difficult task in view of its dynamic, three dimensional, adiabatic nature. Together with precise observations of the processes of fracture, this opens the possibility of transferring quantitatively the results of Charpy tests to real components. This test has also been extended to materials other than steels, and is also frequently used to test polymeric materials. Thus the Charpy test is a tool of great importance and is still at the root of a number of investigations; this is the reason why it was felt that the centenary of the Charpy test had to be celebrated. The Société Française de Métallurgie et de Matériaux decided to organise an international conference which was put under the auspices of the European Society for the Integrity of Structures (ESIS). This Charpy Centenary Conference (CCC 2001) was held in Poitiers, at Futuroscope in October 2001. More than 150 participants from 17 countries took part in the discussions and about one hundred presentations were given. An exhibition of equipment showed, not only present day testing machines, but also one of the first Charpy pendulums, brought all the way from Imperial College in London. From Charpy to Present Impact Testing puts together a number of significant contributions. They are classified into 6 headings: •Keynote lectures, •Micromechanisms, •Polymers, •Testing procedures, •Applications, •Modelling.
Book Synopsis Fracture and Fatigue by : J. C. Radon
Download or read book Fracture and Fatigue written by J. C. Radon and published by Elsevier. This book was released on 2017-01-31 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fracture and Fatigue: Elasto-Plasticity, Thin Sheet and Micromechanisms Problems covers the proceedings of the Third Colloquium on Fracture. The book discusses the development and applications of fracture mechanics. The contents of the text are organized according to the areas of concerns. The first part deals with elasto-plastic fracture mechanics, which includes topics such as fracture mechanics in the elastic-plastic regime and sizing of the geometry dependence and significance of maximum load toughness values. Part II covers the micromechanisms of fracture, which includes the aspects of crack growth under monotonic loading and the effect of secondary hardening on the fracture toughness of a bainitic microstructure. Part III concerns itself with thin sheet fracture mechanics, which includes R-curves evaluation for center-cracked panels and use of the R-curve for design with contained yield. The book will be of great interest to researchers and professionals whose work involves fracture mechanics.
Download or read book JSME International Journal written by and published by . This book was released on 1997 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Elastic-plastic Fracture Test Methods by : E. T. Wessel
Download or read book Elastic-plastic Fracture Test Methods written by E. T. Wessel and published by ASTM International. This book was released on 1985 with total page 434 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 1994 with total page 1620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microstructure, Cleavage Fracture and Toughness of Granular Bainite in Simulated Coarse-grained Heat-affected Zones of Low-carbon High-strenght Steels by : D. Tian
Download or read book Microstructure, Cleavage Fracture and Toughness of Granular Bainite in Simulated Coarse-grained Heat-affected Zones of Low-carbon High-strenght Steels written by D. Tian and published by . This book was released on 1998 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Books in Print written by and published by . This book was released on 1998 with total page 1332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
