Download or read book Fatigue fluage des aciers martensitiques 9 12 de chrome written by Benjamin Fournier and published by . This book was released on 2007 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: C’est dans le cadre des programmes de recherche sur les réacteurs nucléaires de génération IV que les aciers martensitiques de la famille des 9-12%Cr sont étudiés par le CEA. La plupart des structures pour lesquels ils sont pressentis seront sollicitées en fluage-fluage à haute température (550°C). Cette thèse vise à comprendre et modéliser le comportement cyclique et l’endommagement de ces matériaux. Les modélisations proposées se basent sur des campagnes d’observations détaillées (MEB, MET, EBSD,...). L’adoucissement cyclique est attribué au grossissement de la microstructure. Un modèle micromécanique basé sur des paramètres physiques est proposé et mène à des résultats encourageants. L’endommagement, quant à lui, résulte des interactions entre fatigue, fluage et oxydation. Deux principaux types d’endommagement sont mis en évidence. Un modèle de prédiction de durée de vie est proposé et fournit des résultats très satisfaisants. Les possibles extrapolations sont discutées.
Download or read book Fatigue fluage des aciers martensitiques 9 12 Cr written by Benjamin Fournier and published by . This book was released on 2007 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fatigue of Materials and Structures written by Claude Bathias and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of mechanical structures with improved and predictable durability cannot be achieved without a thorough understanding of the mechanisms of fatigue damage and more specifically the relationships between the microstructure of materials and their fatigue properties. Written by leading experts in the field, this book (which is complementary to Fatigue of Materials and Structures: Application to Damage and Design, also edited by Claude Bathias and André Pineau), provides an authoritative, comprehensive and unified treatment of the mechanics and micromechanisms of fatigue in metals, polymers and composites. Each chapter is devoted to one of the major classes of materials or to different types of fatigue damage, thereby providing overall coverage of the field. The book deals with crack initiation, crack growth, low-cycle fatigue, gigacycle fatigue, shorts cracks, fatigue micromechanisms and the local approach to fatigue damage, corrosion fatigue, environmental effects and variable amplitude loadings, and will be an important and much used reference for students, practicing engineers and researchers studying fracture and fatigue in numerous areas of mechanical, structural, civil, design, nuclear, and aerospace engineering as well as materials science.
Download or read book Mechanical Behaviour of Materials written by Dominique François and published by Springer Science & Business Media. This book was released on 2012-12-24 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designing new structural materials, extending lifetimes and guarding against fracture in service are among the preoccupations of engineers, and to deal with these they need to have command of the mechanics of material behaviour. This ought to reflect in the training of students. In this respect, the first volume of this work deals with elastic, elastoplastic, elastoviscoplastic and viscoelastic behaviours; this second volume continues with fracture mechanics and damage, and with contact mechanics, friction and wear. As in Volume I, the treatment links the active mechanisms on the microscopic scale and the laws of macroscopic behaviour. Chapter I is an introduction to the various damage phenomena. Chapter II gives the essential of fracture mechanics. Chapter III is devoted to brittle fracture, chapter IV to ductile fracture and chapter V to the brittle-ductile transition. Chapter VI is a survey of fatigue damage. Chapter VII is devoted to hydrogen embrittlement and to environment assisted cracking, chapter VIII to creep damage. Chapter IX gives results of contact mechanics and a description of friction and wear mechanisms. Finally, chapter X treats damage in non metallic materials: ceramics, glass, concrete, polymers, wood and composites. The volume includes many explanatory diagrams and illustrations. A third volume will include exercises allowing deeper understanding of the subjects treated in the first two volumes.
Download or read book Handbook of Fitting Statistical Distributions with R written by Zaven A. Karian and published by CRC Press. This book was released on 2016-04-19 with total page 1722 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the development of new fitting methods, their increased use in applications, and improved computer languages, the fitting of statistical distributions to data has come a long way since the introduction of the generalized lambda distribution (GLD) in 1969. Handbook of Fitting Statistical Distributions with R presents the latest and best methods
Download or read book Structural Materials for Generation IV Nuclear Reactors written by Pascal Yvon and published by Woodhead Publishing. This book was released on 2016-08-27 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt: Operating at a high level of fuel efficiency, safety, proliferation-resistance, sustainability and cost, generation IV nuclear reactors promise enhanced features to an energy resource which is already seen as an outstanding source of reliable base load power. The performance and reliability of materials when subjected to the higher neutron doses and extremely corrosive higher temperature environments that will be found in generation IV nuclear reactors are essential areas of study, as key considerations for the successful development of generation IV reactors are suitable structural materials for both in-core and out-of-core applications. Structural Materials for Generation IV Nuclear Reactors explores the current state-of-the art in these areas. Part One reviews the materials, requirements and challenges in generation IV systems. Part Two presents the core materials with chapters on irradiation resistant austenitic steels, ODS/FM steels and refractory metals amongst others. Part Three looks at out-of-core materials. Structural Materials for Generation IV Nuclear Reactors is an essential reference text for professional scientists, engineers and postgraduate researchers involved in the development of generation IV nuclear reactors. - Introduces the higher neutron doses and extremely corrosive higher temperature environments that will be found in generation IV nuclear reactors and implications for structural materials - Contains chapters on the key core and out-of-core materials, from steels to advanced micro-laminates - Written by an expert in that particular area
Download or read book Materials for Future Fusion and Fission Technologies written by Chu Chun Fu and published by . This book was released on 2009 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book tude de l endommagement en fluage d assemblages soud s en acier martensitique 9 Cr Grade 91 written by Solenne Collomb and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'objectif d'une meilleure efficience énergétique impose des conditions de service, de plus en plus drastiques, aux composants des centrales thermiques. Cette demande a conduit à l'utilisation de nuances d'aciers à 9-12% de chrome, comme le Grade 91, qui combinent les propriétés de la martensite avec un durcissement par solution solide et par précipitation. Ces nuances présentent des propriétés remarquables en fluage, mais un mode d'endommagement inhabituel au niveau des assemblages soudés (fissures internes générées dans la Zone Affectée Thermiquement, ZAT). Suivant les conditions de service (température-contrainte), les modes d'endommagement par fluage diffèrent, entraînant une localisation de la rupture spécifique. Dans les conditions industrielles (540 - 610°C), le Grade 91 présente un endommagement par cavitation, avec une rupture de type IV, localisée dans la ZAT, proche du métal de base. Différentes études apportent des éléments de réponses sur l'évolution microstructurale induite par le fluage, cependant aucune relation quantitative ne semble avoir été établie entre ces modifications et la durée de vie. Les liens entre l'évolution des contraintes et les modifications microstructurales, au cours du fluage restent mal élucidées. Le projet que nous menons avec l'Institut de Soudure (IS) est l'identification de l'origine et la compréhension de ce mode d'endommagement inhabituel afin de proposer un ou plusieurs facteurs de suivi du temps de vie résiduel d'une soudure. L'objectif a été de suivre, au cours du fluage, l'évolution de la microstructure et de l'endommagement dans le métal de base et dans la zone de faiblesse du joint soudé. Des essais de fluage interrompus à différents stades de la durée de vie, ont été réalisés sur des joints soudé, pour des paramètres d'essai menant à des endommagements similaires à ceux rencontrés en service. Les échantillons pré-flués ont été caractérisés in situ par diffraction en rayonnement synchrotron en fluage dans les mêmes conditions (contrainte-température), afin d'évaluer l'état des contraintes internes le long du joint soudé. Les échantillons ont ensuite été finement caractérisés par microscopie optique, micro-analyse et diffraction, notamment la microscopie électronique à balayage (MEB) et à transmission (MET), la spectroscopie à rayons X (EDS), la diffraction des électrons en transmission (SAED) et rétrodiffusés (EBSD). La résistance mécanique des soudures a été suivie par des cartographies de micro-dureté.
Download or read book Revue G n rale Nucl aire written by and published by . This book was released on 2007 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book D formation et endommagement des aciers martensitiques revenus haute temp rature Fatigue fluage et fatigue fluage written by Sauzay and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal de physique written by and published by . This book was released on 2000 with total page 1046 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindex written by and published by . This book was released on 1976 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fatigue of Materials and Structures written by Claude Bathias and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of mechanical structures with improved and predictable durability cannot be achieved without a thorough understanding of the mechanisms of fatigue damage and more specifically the relationships between the microstructure of materials and their fatigue properties. Written by leading experts in the field, this book (which is complementary to Fatigue of Materials and Structures: Application to Damage and Design, also edited by Claude Bathias and André Pineau), provides an authoritative, comprehensive and unified treatment of the mechanics and micromechanisms of fatigue in metals, polymers and composites. Each chapter is devoted to one of the major classes of materials or to different types of fatigue damage, thereby providing overall coverage of the field. The book deals with crack initiation, crack growth, low-cycle fatigue, gigacycle fatigue, shorts cracks, fatigue micromechanisms and the local approach to fatigue damage, corrosion fatigue, environmental effects and variable amplitude loadings, and will be an important and much used reference for students, practicing engineers and researchers studying fracture and fatigue in numerous areas of mechanical, structural, civil, design, nuclear, and aerospace engineering as well as materials science.
Download or read book Bibliographical Bulletin for Welding and Allied Processes written by International Institute of Welding and published by . This book was released on 1963 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Metals Black Book written by Michael Lash Wayman and published by . This book was released on 1998 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structural Alloys for Nuclear Energy Applications written by Robert Odette and published by Newnes. This book was released on 2019-08-15 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-performance alloys that can withstand operation in hazardous nuclear environments are critical to presentday in-service reactor support and maintenance and are foundational for reactor concepts of the future. With commercial nuclear energy vendors and operators facing the retirement of staff during the coming decades, much of the scholarly knowledge of nuclear materials pursuant to appropriate, impactful, and safe usage is at risk. Led by the multi-award winning editorial team of G. Robert Odette (UCSB) and Steven J. Zinkle (UTK/ORNL) and with contributions from leaders of each alloy discipline, Structural Alloys for Nuclear Energy Applications aids the next generation of researchers and industry staff developing and maintaining steels, nickel-base alloys, zirconium alloys, and other structural alloys in nuclear energy applications. This authoritative reference is a critical acquisition for institutions and individuals seeking state-of-the-art knowledge aided by the editors' unique personal insight from decades of frontline research, engineering and management. - Focuses on in-service irradiation, thermal, mechanical, and chemical performance capabilities. - Covers the use of steels and other structural alloys in current fission technology, leading edge Generation-IV fission reactors, and future fusion power reactors. - Provides a critical and comprehensive review of the state-of-the-art experimental knowledge base of reactor materials, for applications ranging from engineering safety and lifetime assessments to supporting the development of advanced computational models.
Download or read book CASTI Metals Black Book written by John E. Bringas and published by . This book was released on 2003 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt:
