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Interaction Couches Doxyde Et Resistance A La Fatigue De Lacier Inoxydable 316l
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Book Synopsis Interaction couches d'oxyde et résistance à la fatigue de l'acier inoxydable 316L by : Cyril Vernault
Download or read book Interaction couches d'oxyde et résistance à la fatigue de l'acier inoxydable 316L written by Cyril Vernault and published by . This book was released on 1998 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: UNE DES CAUSES DE RUPTURE DE PIECES EN SERVICE PROVIENT DE LEUR SOLLICITATION PAR FATIGUE. L'ENDOMMAGEMENT QUI EN RESULTE EST ACCRU ET PARFOIS MODIFIE PAR LA PRESENCE D'UN ENVIRONNEMENT OXYDANT. DANS CE CONTEXTE, NOUS AVONS ETUDIE L'INFLUENCE DES COUCHES D'OXYDE SUR LES MECANISMES DE FISSURATION PAR FATIGUE D'UN ACIER INOXYDABLE TYPE 316L. CECI A NECESSITE LA CARACTERISATION DES PROCESSUS ET DES PRODUITS D'OXYDATION A 300C ET 600C SUR UN MATERIAU NON PRE-DEFORME AINSI QUE PRE-DEFORME PAR FATIGUE. NOUS AVONS ALORS, ETABLI L'EFFET INTRINSEQUE DE CES COUCHES SUR L'ENDOMMAGEMENT EN FATIGUE PLASTIQUE DU 316L, PAR LA COMPARAISON D'EPROUVETTES PRE-OXYDEES OU NON PRE-OXYDEES SOLLICITEES SOUS VIDE. CECI A PERMIS DE DEMONTRER L'EXISTENCE D'INTERACTIONS ENTRE LA PLASTICITE ET LES JOINTS DE GRAINS OXYDES. CELLES-CI CONDUISENT A UNE AUGMENTATION DES FISSURES INTERGRANULAIRES. DES LORS, LES CONDITIONS DE SOLLICITATION OU LA TENUE EN FATIGUE EST CONTROLEE PAR LE STADE D'AMORCAGE (FATIGUE ENDURANCE) SONT OPTIMALES POUR OBSERVER UN EFFET SIGNIFICATIF DES OXYDES SUR LA DUREE DE VIE.
Book Synopsis Etude des interactions bactéries-surfaces et des effets sur la passivation des aciers inoxydables by : Elise Gardin
Download or read book Etude des interactions bactéries-surfaces et des effets sur la passivation des aciers inoxydables written by Elise Gardin and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les aciers inoxydables doivent leur résistance à la corrosion à la formation d'une couche d'oxyde à leur surface, communément qualifiée de film passif, qui a une épaisseur de quelques nanomètres et se compose majoritairement d'oxydes et/ou d'hydroxydes de Fe(III) et de Cr(III). Cependant, dans des milieux agressifs, la stabilité de la couche d'oxyde peut être compromise, ce qui peut déclencher des phénomènes de corrosion (localisée ou généralisée). Par exemple, en présence de microorganismes, et plus particulièrement de bactéries, l'adhésion bactérienne et la formation d'un biofilm à la surface peut conduire à l'initiation et/ou à l'accélération des processus de corrosion : on parle alors de biocorrosion. Dans un premier temps, nous avons caractérisé la couche d'oxyde formée à la surface de l'acier inoxydable duplex 2304 par un couplage de techniques fines d'analyse des surfaces (XPS et ToF-SIMS). Nous avons notamment mis en évidence des différences concernant la composition chimique de la surface sur chacune des phases de l'alliage duplex. Dans un second temps, nous avons caractérisé la surface de l'alliage duplex au cours de l'adhésion de bactéries marines aérobies Pseudoalteromonas NCIMB 2021 en milieu marin par un couplage de techniques de caractérisation microscopiques (microscopie à épifluorescence, MEB et AFM), de techniques fines d'analyse des surfaces (XPS et ToF-SIMS) et de techniques électrochimiques (suivi du potentiel à l'abandon, courbes de polarisation anodiques et cathodiques). Nous avons notamment montré que la formation du biofilm s'accompagne de modifications de la couche d'oxyde.
Book Synopsis Apport des techniques d'analyse locale EBSD et AFM à l'étude de l'émergence des bandes de glissement induites par fatigue dans l'acier inoxydable 316L by : Laurent Sabatier
Download or read book Apport des techniques d'analyse locale EBSD et AFM à l'étude de l'émergence des bandes de glissement induites par fatigue dans l'acier inoxydable 316L written by Laurent Sabatier and published by . This book was released on 2002 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette thèse vise à évaluer ce que les techniques d'analyses locales récentes que sont l'EBSD et l'AFM permettent d'apporter dans l'étude des conditions de déformation et d'endommagement en surface d'un acier inoxydable 316L sollicité en fatigue (LCF). Une première partie concerne la caractérisation de la structure fine des bandes de glissements produites au cours du cyclage. La morphologie des extrusions-intrusions y est étudiée à l'échelle nanométrique (AFM) en relation directe avec les configurations cristallographiques locales (EBSD). L'influence de l'air ambiant y est étudiée par comparaison avec des résultats établis sous vide. Une seconde partie porte sur les effets induits par deux couches minces influant sur les processus d'émergence des bandes de glissement : un film (0,1æm) de NiTi de structure amorphe ayant des effets bénéfiques sur la durée de vie du 316L et une couche d'oxydes produite à haute température dont les caractéristiques dépendent de l'orientation des grains du substrat.
Book Synopsis Degradation of Implant Materials by : Noam Eliaz
Download or read book Degradation of Implant Materials written by Noam Eliaz and published by Springer Science & Business Media. This book was released on 2012-08-21 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the current understanding of the mechanical, chemical and biological processes that are responsible for the degradation of a variety of implant materials. All 18 chapters will be written by internationally renowned experts to address both fundamental and practical aspects of research into the field. Different failure mechanisms such as corrosion, fatigue, and wear will be reviewed, together with experimental techniques for monitoring them, either in vitro or in vivo. Procedures for implant retrieval and analysis will be presented. A variety of biomaterials (stainless steels, titanium and its alloys, nitinol, magnesium alloys, polyethylene, biodegradable polymers, silicone gel, hydrogels, calcium phosphates) and medical devices (orthopedic and dental implants, stents, heart valves, breast implants) will be analyzed in detail. The book will serve as a broad reference source for graduate students and researchers studying biomedicine, corrosion, surface science, and electrochemistry.
Book Synopsis Microbiologically Influenced Corrosion by : Brenda J. Little
Download or read book Microbiologically Influenced Corrosion written by Brenda J. Little and published by John Wiley & Sons. This book was released on 2007-04-13 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multi-disciplinary, multi-industry overview of microbiologically influenced corrosion, with strategies for diagnosis and control or prevention Microbiologically Influenced Corrosion helps engineers and scientists understand and combat the costly failures that occur due to microbiologically influenced corrosion (MIC). This book combines recent findings from diverse disciplines into one comprehensive reference. Complete with case histories from a variety of environments, it covers: Biofilm formation Causative organisms, relating bacteria and fungi to corrosion mechanisms for groups of metals Diagnosing and monitoring MIC Electrochemical techniques, with an overview of methods for detection of MIC The impact of alloying elements, including antimicrobial metals, and design features on MIC MIC of non-metallics Strategies for control or prevention of MIC, including engineering, chemical, and biological approaches This is a valuable, all-inclusive reference for corrosion scientists, engineers, and researchers, as well as designers, managers, and operators.
Book Synopsis Lasers in Materials Processing by : Edward A. Metzbower
Download or read book Lasers in Materials Processing written by Edward A. Metzbower and published by ASM International(OH). This book was released on 1983 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microbiologically Influenced Corrosion by : Reza Javaherdashti
Download or read book Microbiologically Influenced Corrosion written by Reza Javaherdashti and published by Springer. This book was released on 2016-09-29 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Significantly extended from the first edition, this book presents the basics of microbiologically influenced corrosion (MIC) in an accessible and concise manner. It explores strategies for recognizing, understanding, mitigating and preventing this type of corrosion, and investigates this topic from the point of view of an engineer. Chapters cover issues including stress corrosion cracking and microbial corrosion, the pros and cons of biocides, the involvement of magnetic bacteria in microbial corrosion, and cathodic protection based on recent research in microbial environments. The 2nd Edition provides new material examining the following topics: *The corrosion-related bacteria clostridia *Mathematical modelling of MIC, in particular fuzzy logic *A comparison of culture-independent methods with culture-dependent methods *Further practical strategies for dealing with MIC *Natural biocidesThis book has provided course material for the author’s microbial corrosion workshops around the world, and it presents an invaluable resource to corrosion and integrity professionals working in a wide range of industries including power generation, oil and gas, marine, and mining. It is also intended for students and academics of corrosion engineering, materials science, microbiology, chemical engineering and welding.
Book Synopsis Stress Corrosion Cracking of Pipelines by : Y. Frank Cheng
Download or read book Stress Corrosion Cracking of Pipelines written by Y. Frank Cheng and published by John Wiley & Sons. This book was released on 2013-02-13 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explains why pipeline stress corrosion cracking happens and how it can be prevented Pipelines sit at the heart of the global economy. When they are in good working order, they deliver fuel to meet the ever-growing demand for energy around the world. When they fail due to stress corrosion cracking, they can wreak environmental havoc. This book skillfully explains the fundamental science and engineering of pipeline stress corrosion cracking based on the latest research findings and actual case histories. The author explains how and why pipelines fall prey to stress corrosion cracking and then offers tested and proven strategies for preventing, detecting, and monitoring it in order to prevent pipeline failure. Stress Corrosion Cracking of Pipelines begins with a brief introduction and then explores general principals of stress corrosion cracking, including two detailed case studies of pipeline failure. Next, the author covers: Near-neutral pH stress corrosion cracking of pipelines High pH stress corrosion cracking of pipelines Stress corrosion cracking of pipelines in acidic soil environments Stress corrosion cracking at pipeline welds Stress corrosion cracking of high-strength pipeline steels The final chapter is dedicated to effective management and mitigation of pipeline stress corrosion cracking. Throughout the book, the author develops a number of theoretical models and concepts based on advanced microscopic electrochemical measurements to help readers better understand the occurrence of stress corrosion cracking. By examining all aspects of pipeline stress corrosion cracking—the causes, mechanisms, and management strategies—this book enables engineers to construct better pipelines and then maintain and monitor them to ensure safe, reliable energy supplies for the world.
Book Synopsis Diffusion in Materials - DIMAT 2011 by : Igor Bezverkhyy
Download or read book Diffusion in Materials - DIMAT 2011 written by Igor Bezverkhyy and published by Trans Tech Publications Ltd. This book was released on 2012-04-12 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Conference on Diffusion in Materials (DIMAT) is the benchmark conference series for diffusion in solids. DIMAT 2011 was organized by the University of Bourgogne in association with CNRS, Dijon (France). The conference showcased new results concerning theoretical tools as well as applied research approaches. Diffusion processes affect all types of materials: nanomaterials, materials for energy, metallurgy, glasses and ceramics, but each requires its own numerical tools. Volume is indexed by Thomson Reuters CPCI-S (WoS). This volume comprises most of the contributions presented at DIMAT 2011: 4 plenary lectures delivered by famous high-level scientists plus 88 contributions in the form of keynote lectures, talks and posters.
Book Synopsis Corrosion Mechanisms by : Florian B. Mansfeld
Download or read book Corrosion Mechanisms written by Florian B. Mansfeld and published by CRC Press. This book was released on 1986-11-25 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the mechanisms that have been proposed for the main corrosion phenomena, providing a thorough discussion of the pros and cons of the various corrosion mechanisms with support by experimental and theoretical results.
Book Synopsis Biodegradable Metals by : Hendra Hermawan
Download or read book Biodegradable Metals written by Hendra Hermawan and published by Springer Science & Business Media. This book was released on 2012-07-15 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book in the emerging research field of biomaterials covers biodegradable metals for biomedical applications. The book contains two main parts where each of them consists of three chapters. The first part introduces the readers to the field of metallic biomaterials, exposes the state of the art of biodegradable metals, and reveals its application for cardiovascular implants. Some fundamental aspects to give basic understanding on metals for further review on the degradable ones is covered in chapter one. The second chapter introduces the concept of biodegradable metals, it's state of the art and discuses a shifted paradigm from inert to bioactive, from corrosion resistant to corrodible metals. The third chapter focuses on the challenges and opportunities of using biodegradable metals for cardiovascular applications. The second part exposes an example of biodegradable metals from its concept to applications where a complete study on metallic biodegradable stent is detailed from materials design, development, testing till the implant fabrication. The forth chapter reveals new alloys development devoted for metallic biodegradable stent based on required criteria derrived from clinical needs and current nondegradable stents properties. Degradation of the alloys in simulated arterial conditions and its effect to cells are exposed in chapter five. The both chapters are concluded with a benchmarking of some more recent researches on materials development and testing for biodegradable stents. Chapter six reveals the tranformation process of the materials into stent prototypes where a standard process for making 316L stainless steel stents was followed. The book is completed by a perspective on the use of biodegradable metals for biomedical applications in the era of tissue engineering.
Book Synopsis Biomaterials and Medical Devices by : Ferdyansyah Mahyudin
Download or read book Biomaterials and Medical Devices written by Ferdyansyah Mahyudin and published by Springer. This book was released on 2016-02-26 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an introduction to biomaterials with the focus on the current development and future direction of biomaterials and medical devices research and development in Indonesia. It is the first biomaterials book written by selected academic and clinical experts experts on biomaterials and medical devices from various institutions and industries in Indonesia. It serves as a reference source for researchers starting new projects, for companies developing and marketing products and for governments setting new policies. Chapter one covers the fundamentals of biomaterials, types of biomaterials, their structures and properties and the relationship between them. Chapter two discusses unconventional processing of biomaterials including nano-hybrid organic-inorganic biomaterials. Chapter three addresses biocompatibility issues including in vitro cytotoxicity, genotoxicity, in vitro cell models, biocompatibility data and its related failure. Chapter four describes degradable biomaterial for medical implants, which include biodegradable polymers, biodegradable metals, degradation assessment techniques and future directions. Chapter five focuses on animal models for biomaterial research, ethics, care and use, implantation study and monitoring and studies on medical implants in animals in Indonesia. Chapter six covers biomimetic bioceramics, natural-based biocomposites and the latest research on natural-based biomaterials in Indonesia. Chapter seven describes recent advances in natural biomaterial from human and animal tissue, its processing and applications. Chapter eight discusses orthopedic applications of biomaterials focusing on most common problems in Indonesia, and surgical intervention and implants. Chapter nine describes biomaterials in dentistry and their development in Indonesia.
Book Synopsis Contact With Space: Oranur; Second Report 1951 - 1956 by : Wilhelm Reich
Download or read book Contact With Space: Oranur; Second Report 1951 - 1956 written by Wilhelm Reich and published by . This book was released on 2018-10-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wilhelm Reich's final publication, Contact With Space contains the result of six years of intensive research and field work: a natural scientific account of and the basis of practical measures for combating the DOR emergency. This volume is an exposition of the newest developments in the technology of Cosmic Orgone Engineering, which involve the use of "Spacegun," an extension of the cloudbuster made possible by the discovery of ORUR.During Reich's scientific expedition to southern Arizona (1954-1955)--which he documents in this book--it was Cosmic Orgone Engineering that caused desert land to turn green with prairie grass. Here Reich submits a natural scientific explanation of the metabolism of the Life Energy, a study which goes into the nature of primal vegetation, and the nature of dying or death of vegetation, i.e., desert development.Nature being one, Contact With Space examines the new basic energetic facts brought into the open by the Oranur Experiment in terms of the various branches of science into which they ramify: biophysics, Oranur medicine, astrophysics, meteorology, chemistry and pre-atomic chemistry, space technology, man's reactions to these events, etc. It also deals with the methods of the functional scientist.Written under unrelenting attack from conspiratorial commercial interests, this book gives some of the background into the difficult social and physical milieu in which this research was done, and conveys the excitement of the adventures that began the cosmic or "atomic" age.
Book Synopsis Biomaterials in Orthopedics by : Michael J. Yaszemski
Download or read book Biomaterials in Orthopedics written by Michael J. Yaszemski and published by CRC Press. This book was released on 2003-10-17 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by respected experts in the field, Biomaterials in Orthopedics discusses bioabsorbable biomaterials for bone repair, nondegradable materials in orthopaedics and delivery systems. Topics in this text include biocompatibility and the biomaterial/tissue interface; self-reinforced bioabsorbable devices and guided regeneration; bone substitutes,
Book Synopsis Handbook of Biomaterials Biocompatibility by : Masoud Mozafari
Download or read book Handbook of Biomaterials Biocompatibility written by Masoud Mozafari and published by Woodhead Publishing. This book was released on 2020-06-16 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Biomaterials Biocompatibility is a systematic reference on host response to different biomaterials, taking into account their physical, mechanical and chemical properties. The book reviews recent progress in the design and study of biomaterials biocompatibility, along with current understanding on how to control immune system response. Sections provide the fundamental theories and challenges of biomaterials biocompatibility, the role of different biomaterials physicochemical surface properties on cell responses, cell responses to different physicochemical properties of polymers, ceramics, metals, carbons and nanomaterials, and biomaterials in different tissues, such as the cardiac, nervous system, cartilage and bone. This resource will be suitable for those working in the fields of materials science, regenerative engineering, medicine, medical devices and nanotechnology.
