Download or read book Interactions hydrog ne mat riaux et corrosion d formation written by Eric Andrieu and published by Presses des MINES. This book was released on 2010 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book VERS UNE QUANTIFICATION DES MECANISMES DE CORROSION SOUS CONTRAINTE written by JEAN-PHILIPPE.. CHATEAU and published by . This book was released on 1999 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: NOUS DISCUTONS LES ROLES RESPECTIFS JOUES PAR LA DISSOLUTION ANODIQUE ET L'HYDROGENE DANS LES MECANISMES DE CSC DES MATERIAUX CFC, VIA UNE ETUDE COMPAREE DE LA RUPTURE DU CUIVRE EN MILIEU NITRITE ET DU 316L EN MILIEU CHLORURE A CHAUD. BIEN QUE LES CRISTALLOGRAPHIES DE RUPTURE A L'ECHELLE DU MICRON SOIENT DIFFERENTES, LES FACIES PRESENTENT LA MEME INCLINAISON MACROSCOPIQUE. DANS LE 316L, LA PRESENCE D'EMPILEMENTS FORTS ET D'HYDROGENE CONDUIT A UNE FISSURATION EN ZIGZAG LE LONG DES PLANS DE GLISSEMENT. EN L'ABSENCE D'HYDROGENE, COMME DANS LE CUIVRE, CE MECANISME DISPARAIT. DES SIMULATIONS DE L'ECRANTAGE D'UNE FISSURE PAR DES DISLOCATIONS PREDISENT L'INCLINAISON MACROSCOPIQUE. ELLE EST DUE A LA DISSOLUTION QUI CONFINE LE GLISSEMENT EN POINTE DE FISSURE DANS LES DEUX MATERIAUX. NOUS AVONS DEVELOPPE DES SIMULATIONS QUI RESOLVENT NUMERIQUEMENT LES EQUATIONS COUPLEES DE DIFFUSION ET D'ELASTICITE POUR L'HYDROGENE EN POINTE D'UNE FISSURE ECRANTEE. ELLES REPRODUISENT LES MECANISMES DE SEGREGATION SUR LES DISLOCATIONS COIN ET D'ADOUCISSEMENT LOCALISE PAR DIMINUTION DES INTERACTIONS DE PAIRES. CES MECANISMES PROVOQUENT I) UNE LOCALISATION DE L'HYDROGENE LE LONG DES PLANS DE GLISSEMENT, II) UNE AUGMENTATION DE LA DENSITE DE DISLOCATIONS DANS LES EMPILEMENTS, ET III) UNE DIMINUTION DE LA PROBABILITE DE GLISSEMENT DEVIE. CES TROIS FACTEURS FAVORISENT LA RUPTURE EN TETE D'EMPILEMENT. EN INTRODUISANT LES EFFETS DE SURFACES POUR L'HYDROGENE, NOUS METTONS EN EVIDENCE UN MECANISME D'INHIBITION DES SOURCES DE DISLOCATIONS EN POINTE DE FISSURE, EN ACCORD AVEC LES FACIES FRAGILES PARFOIS OBSERVES DANS LE 316L. LA QUANTIFICATION DE CES DIFFERENTS MECANISMES NOUS PERMET DE RELIER LA POSSIBILITE DE RUPTURE LOCALE AUX PARAMETRES MACROSCOPIQUES DANS LE 316L. NOUS TIRONS DES SIMULATIONS UNE LOI GENERALE POUR L'ADOUCISSEMENT, ET MONTRONS QUE LA RUPTURE A LIEU POUR DES VALEURS REALISTES DE TROIS PARAMETRES CLES : LA CONCENTRATION EN HYDROGENE, LA DIMINUTION DE K#I#C ET LA RESISTANCE DES OBSTACLES.
Download or read book Hydrog ne mat riaux corrosion sous contrainte interaction corrosion d formatio written by Christine Blanc (auteur d'une thèse de doctorat en sciences des matériaux).) and published by . This book was released on 2017-10-12 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: La commission " Corrosion sous Contrainte – Fatigue Corrosion " du CEFRACOR met régulièrement à l'honneur les doctorants à l'occasion des Journées Jeunes Chercheurs : rassemblés sur un même lieu avec leurs encadrants, ils ont l'opportunité de présenter leurs travaux en toute convivialité sous forme d'exposé oral ou de poster, et d'avoir des discussions stimulantes avec d'autres doctorants et des experts du domaine autour des thématiques des deux groupes de travail de cette commission : " Hydrogène-matériaux " et " Interactions Corrosion Déformation ". Ces thématiques faisant appel à de nombreux concepts multi-physiques et multidisciplinaires, cette manifestation est également l'occasion pour la communauté française de faire un état des problématiques et de dresser un panorama des recherches consacrées à la compréhension du rôle des contraintes sur les processus de corrosion et de fragilisation par l'hydrogène. Ces journées sont également l'occasion de faire participer des chercheurs et des industriels intéressés et impliqués dans ce domaine. Après quelques années d'interruption, ces Journées Jeunes Chercheurs ont été relancées en 2010 et ont rassemblé une soixantaine de participants les 6 et 7 avril à Gif-sur-Yvette. En 2011, l'édition s'est tenue à Lyon les 11 et 12 juillet, puis en 2013 à La Rochelle les 26 et 27 juin, chacune ayant rassemblé plus d'une soixantaine de participants. L'édition 2015, qui s'est déroulée à Saint-Etienne les 8 et 9 avril, a connu un franc succès avec soixante-quinze participants. Pour cette édition 2017, la ville de Dijon accueille les jeunes chercheurs avec dans le même esprit que les éditions précédentes. Cet ouvrage synthétise les résumés des travaux qui y sont présentés et offre à nouveau une vue d'ensemble des travaux de recherche conduits en France sur ces thématiques.
Download or read book 2i me Congr s International Hydrog ne Dans Les M taux written by and published by . This book was released on 1978 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Water Supply Association written by International Water Supply Association. Congress and published by . This book was released on 1980 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindeks written by and published by . This book was released on 1984 with total page 1080 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 1978 with total page 1296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stress Corrosion Cracking written by V S Raja and published by Elsevier. This book was released on 2011-09-22 with total page 817 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problem of stress corrosion cracking (SCC), which causes sudden failure of metals and other materials subjected to stress in corrosive environment(s), has a significant impact on a number of sectors including the oil and gas industries and nuclear power production. Stress corrosion cracking reviews the fundamentals of the phenomenon as well as examining stress corrosion behaviour in specific materials and particular industries.The book is divided into four parts. Part one covers the mechanisms of SCC and hydrogen embrittlement, while the focus of part two is on methods of testing for SCC in metals. Chapters in part three each review the phenomenon with reference to a specific material, with a variety of metals, alloys and composites discussed, including steels, titanium alloys and polymer composites. In part four, the effect of SCC in various industries is examined, with chapters covering subjects such as aerospace engineering, nuclear reactors, utilities and pipelines.With its distinguished editors and international team of contributors, Stress corrosion cracking is an essential reference for engineers and designers working with metals, alloys and polymers, and will be an invaluable tool for any industries in which metallic components are exposed to tension, corrosive environments at ambient and high temperatures. - Examines the mechanisms of stress corrosion cracking (SCC) presenting recognising testing methods and materials resistant to SCC - Assesses the effect of SCC on particular metals featuring steel, stainless steel, nickel-based alloys, magnesium alloys, copper-based alloys and welds in steels - Reviews the monitoring and management of SCC and the affect of SCC in different industries such as petrochemical and aerospace
Download or read book Deformation Mechanisms Texture and Anisotropy in Zirconium and Zircaloy written by Erich Tenckhoff and published by ASTM International. This book was released on 1988 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Self healing Materials written by Swapan Kumar Ghosh and published by John Wiley & Sons. This book was released on 2009-08-04 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book covers self-healing concepts for all important material classes and their applications: polymers, ceramics, non-metallic and metallic coatings, alloys, nanocomposites, concretes and cements, as well as ionomers. Beginning with the inspiration from biological self-healing, its mimickry and conceptual transfer into approaches for the self-repair of artificially created materials, this book explains the strategies and mechanisms for the readers' basic understanding, then covers the different material classes and suitable self-healing concepts, giving examples for their application in practical situations. As the first book in this swiftly growing research field, it is of great interest to readers from many scientific and engineering disciplines, such as physics and chemistry, civil, architectural, mechanical, electronics and aerospace engineering.
Download or read book Aspects on Fundaments and Applications of Conducting Polymers written by Artur Motheo and published by BoD – Books on Demand. This book was released on 2012-01-20 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the establishment of the conductive properties of intrinsic conductive polymers, a huge variety of basic and applied research has been carried out, involving different polymers, copolymers, blends, mixtures and composites. Thus, fundamental understanding of physical and chemical properties of these materials has been sought, while the applied aspects have advanced very rapidly, crossing the boundaries between disciplines. Today, the applications of conducting polymers in various fields such as neuroscience, nanotechnology and green chemistry, are easily found. This development is dynamic and it needs to be updated and hence the motivation for the set of results presented in this book; which provides information about the development of fundamentals, and about some applications of conductive polymers.
Download or read book Canadian Journal of Physics written by and published by . This book was released on 1993 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Guide to the Preventive Conservation of Photograph Collections written by Bertrand Lavédrine and published by Getty Publications. This book was released on 2003 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: A resource for the photographic conservator, conservation scientist, curator, as well as professional collector, this volume synthesizes both the masses of research that has been completed to date and the international standards that have been established on the subject.
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1986 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Performance of Cement Based Materials in Aggressive Aqueous Environments written by Mark Alexander and published by Springer Science & Business Media. This book was released on 2012-12-18 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concrete and cement-based materials must operate in increasingly aggressive aqueous environments, which may be either natural or industrial. These materials may suffer degradation in which ion addition and/or ion exchange reactions occur, leading to a breakdown of the matrix microstructure and consequent weakening. Sometimes this degradation can be extremely rapid and serious such as in acidic environments, while in other cases degradation occurs over long periods. Consequences of material failure are usually severe – adversely affecting the health and well-being of human communities and disturbing ecological balances. There are also large direct costs of maintaining and replacing deteriorated infrastructure and indirect costs from loss of production during maintenance work, which place a great burden on society. The focus of this book is on addressing issues concerning performance of cement-based materials in aggressive aqueous environments , by way of this State-of-the-Art Report. The book represents the work of many well-known and respected authors who contributed chapters or parts of chapters. Four main themes were addressed: I. Nature and kinetics of degradation and deterioration mechanisms of cement-based materials in aggressive aqueous environments, II. Modelling of deterioration in such environments, III. Test methods to assess performance of cement-based materials in such environments, and which can be used to characterise and rate relative performance and inform long term predictions, IV. Engineering implications and consequences of deterioration in aggressive aqueous environments, and engineering approaches to the problem.
Download or read book Mechanical Properties of Ceramics written by John B. Wachtman and published by John Wiley & Sons. This book was released on 2009-08-13 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Comprehensive and Self-Contained Treatment of the Theory and Practical Applications of Ceramic Materials When failure occurs in ceramic materials, it is often catastrophic, instantaneous, and total. Now in its Second Edition, this important book arms readers with a thorough and accurate understanding of the causes of these failures and how to design ceramics for failure avoidance. It systematically covers: Stress and strain Types of mechanical behavior Strength of defect-free solids Linear elastic fracture mechanics Measurements of elasticity, strength, and fracture toughness Subcritical crack propagation Toughening mechanisms in ceramics Effects of microstructure on toughness and strength Cyclic fatigue of ceramics Thermal stress and thermal shock in ceramics Fractography Dislocation and plastic deformation in ceramics Creep and superplasticity of ceramics Creep rupture at high temperatures and safe life design Hardness and wear And more While maintaining the first edition's reputation for being an indispensable professional resource, this new edition has been updated with sketches, explanations, figures, tables, summaries, and problem sets to make it more student-friendly as a textbook in undergraduate and graduate courses on the mechanical properties of ceramics.
Download or read book Accelerated Aging written by Robert L. Feller and published by Getty Publications. This book was released on 1995-03-02 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accelerated Aging: Photochemical and Thermal Aspects represents the culmination of more than 40 years of research by noted scientist Robert L. Feller. The book focuses on the long-term performance of materials such as wool, dyes, and organic compounds; their resistance to change when exposed to environmental factors such as oxygen, ozone, moisture, heat, and light; and their physical durability with handling and use over time. Processes of deterioration are discussed based on speeded-up laboratory studies designed to clarify the chemical reactions involved and their physical consequences.
