Download or read book ETUDE DU COMPORTEMENT MECANIQUE A HAUTE TEMPERATURE DES CARBURES CEMENTES WC CO written by NOURREDINE.. BOUAOUADJA and published by . This book was released on 1986 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: ETUDE EXPERIMENTALE SUR QUATRE NUANCES WC-(6,5 A 25 % CO) JUSQU'A 1000 C SOUS ATMOSPHERE NEUTRE. LES CARACTERISTIQUES DE RESISTANCE DIMINUENT ET LES PROPRIETES PLASTIQUES AUGMENTENT LORSQUE LA TENEUR EN COBALT AUGMENTE. CETTE TENDANCE S'ACCENTUE LORSQUE LA TEMPERATURE CROIT. MESURE DE LA TENACITE ET DETERMINATION DES COURBES DE RESISTANCE A LA PROPAGATION DES FISSURES. INFLUENCE DE LA TEMPERATURE ET DE LA TENEUR EN COBALT SUR LA TENACITE. COMPARAISON DES RESULTATS A CEUX PREVUS PAR LES MODELES POUR CE TYPE DE MATERIAUX COMPOSITES

Download or read book Etude du comportement m canique haute temp rature d un carbure c ment WC 6 Co written by Hocine Si Mohand and published by . This book was released on 1983 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: ESSAIS DE FLEXION QUATRE POINTS, SOUS ATMOSPHERE CONTROLEE. LES RESULTATS MONTRENT QUE LA MECANIQUE LINEAIRE DE RUPTURE N'EST PLUS APPLICABLE AU-DESSUS DE 800 C, MAIS QUE L'UTILISATION DE L'INTEGRALE J PERMET L'INTERPRETATION DES RESULTATS EXPERIMENTAUX

Download or read book ETUDE DU COMPORTEMENT MECANIQUE A HAUTE TEMPERATURE DE CERMETS WC CO EFFET DE LA MICROSTRUCTURE written by YANNICK.. COURTIAL and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LA CARACTERISATION DES PROPRIETES MECANIQUES DE CERMETS WC-(17,5-25%)CO A HAUTE TEMPERATURE (600-1000C) ET, EN PARTICULIER, DE LEUR RESISTANCE A LA PROPAGATION DES FISSURES NE PEUT SE FAIRE EN UTILISANT LES LOIS DE COMPORTEMENT DES MATERIAUX FRAGILES (DOMAINE ELASTIQUE) ET A PARTIR DU SEUL CRITERE DE RUPTURE BRUTALE KIC. EN EFFET, LE COMPORTEMENT DE CES MATERIAUX EST, A CE NIVEAU DE TEMPERATURE, DE TYPE ELASTOPLASTIQUE. NOUS AVONS DONC FAIT APPEL A LA NOTION DE COURBE R; COURBE DE RESISTANCE A LA PROPAGATION DE FISSURE; ACCEDANT AINSI AUX VALEURS DE DEBUT DE CROISSANCE STABLE (INITIATION) DE FISSURE; DE PROPAGATION ET A LA DIFFERENCIATION DES PHENOMENES ELASTIQUES ET PLASTIQUES. LA COMPARAISON DES DIFFERENTES METHODES (RICE, GARWOOD ET SAKAI) QUI PERMETTENT D'OBTENIR DES COURBES R, NOUS A CONDUIT AUX CONCLUSIONS SUIVANTES: LA METHODE DE RICE EST LA MIEUX ADAPTEE AU CAS DES CERMETS WC-CO JIC-RICE, CORRESPOND AU DEBUT DE CROISSANCE STABLE DE FISSURE; DEFINITION D'UN CRITERE JIO-RICE COMME CRITERE DE RUPTURE BRUTALE A HAUTE TEMPERATURE. PARALLELEMENT, NOUS AVONS DEVELOPPE UN APPAREIL DE DOUBLE TORSION ET NOUS AVONS APPLIQUE CETTE MESURE AU CAS DES CERMETS. L'OBSERVATION D'UNE CROISSANCE LENTE DE DEFAUT SOUS-CRITIQUE A ETE POSSIBLE A 600C. TOUTES CES MESURES AYANT POUR OBJECTIF D'OBSERVER L'INFLUENCE DE LA MICROSTRUCTURE ET DE LA TENEUR EN COBALT SUR LES PROPRIETES MECANIQUES A HAUTE TEMPERATURE DE CERMETS DEVELOPPES PAR LA SOCIETE CERAMETAL (LUX.)

Download or read book Carbures c ment s WC Co written by Aurélie Delanoe͏̈ and published by . This book was released on 2004 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'ajout de Cr et la maîtrise du potentiel de C permettent de ralentir l'évolution microstructurale des carbures cémentés WC-Co obtenus à partir de poudres submicroniques et ainsi de conserver les propriétés mécaniques intéressantes de ces alliages. Le but de notre travail est d'étudier les effets de Cr et du potentiel de C sur la microstructure au cours du frittage. Des alliages WC-Co dopés ou non en Cr et présentant à haute température soit du carbone graphite (C/W>1) soit de la phase ? (C/W

Download or read book Science of Ceramics written by Gerald H. Stewart and published by . This book was released on 1962 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lattice Defects in Ceramics written by Takayoshi Suzuki and published by . This book was released on 1989 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Science of Ceramics written by and published by . This book was released on 1983 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CONTRIBUTION A L ETUDE DU COMPORTEMENT MECANIQUE A HAUTE TEMPERATURE DU NITRURE ET DU CARBURE DE SILICIUM written by Michel Boussuge and published by . This book was released on 1985 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: ON PROPOSE UNE APPROCHE DE L'ESSAI DE DOUBLE TORSION DANS DES CONDITIONS NON PLUS LINEAIRES-ELASTIQUES MAIS VISCOPLASTIQUES, AFIN D'EVALUER L'ENDOMMAGEMENT A HAUTE TEMPERATURE DES CERAMIQUES THERMOMECANIQUES DE SI::(3)N::(4) ET SIC FRITTEES

Download or read book Physics Briefs written by and published by . This book was released on 1983 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Propri t s m caniques haute temp rature de cermets Ti C N WC Mo Co gradient de composition pour outils de coupe written by Stéphane Bolognini and published by . This book was released on 2000 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ei Engineering Conference Index pt 1 Civil environmental and geological engineering written by and published by . This book was released on 1985 with total page 1412 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tribology of Metal Cutting written by Viktor P. Astakhov and published by Elsevier. This book was released on 2006-12-18 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tribology of Metal Cutting deals with the emerging field of studies known as Metal Cutting Tribology. Tribology is defined as the science and technology of interactive surfaces moving relative each other. It concentrates on contact physics and mechanics of moving interfaces that generally involve energy dissipation. This book summarizes the available information on metal cutting tribology with a critical review of work done in the past. The book covers the complete system of metal cutting testing. In particular, it presents, explains and exemplifies a breakthrough concept of the physical resource of the cutting tool. It also describes the cutting system physical efficiency and its practical assessment via analysis of the energy partition in the cutting system. Specialists in the field of metal cutting will find information on how to apply the major principles of metal cutting tribology, or, in other words, how to make the metal cutting tribology to be useful at various levels of applications. The book discusses other novel concepts and principles in the tribology of metal cutting such as the energy partition in the cutting system; versatile metrics of cutting tool wear; optimal cutting temperature and its use in the optimization of the cutting process; the physical concept of cutting tool resource; and embrittlement action. This book is intended for a broad range of readers such as metal cutting tool, cutting insert, and process designers; manufacturing engineers involved in continuous process improvement; research workers who are active or intend to become active in the field; and senior undergraduate and graduate students of manufacturing. · Introduces the cutting system physical efficiency and its practical assessment via analysis of the energy partition in the cutting system.· Presents, explains and exemplifies a breakthrough concept of the physical resource of the cutting tool.· Covers the complete system of metal cutting testing.

Download or read book Ceramic Materials written by Philippe Boch and published by John Wiley & Sons. This book was released on 2010-01-05 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is primarily an introduction to the vast family of ceramic materials. The first part is devoted to the basics of ceramics and processes: raw materials, powders synthesis, shaping and sintering. It discusses traditional ceramics as well as “technical” ceramics – both oxide and non-oxide – which have multiple developments. The second part focuses on properties and applications, and discusses both structural and functional ceramics, including bioceramics. The fields of abrasion, cutting and tribology illustrate the importance of mechanical properties. It also deals with the questions/answers of a ceramicist regarding electronuclear technology. As chemistry is an essential discipline for ceramicists, the book shows, in particular, what soft chemistry can contribute as a result of sol-gel methods.

Download or read book Electroless Nickel Plating Fundamentals to Applications written by Fabienne Delaunois and published by CRC Press. This book was released on 2019-10-30 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electroless Nickel Plating: Fundamentals to Applications provides a complete and actualized view of electroless nickel plating, thus greatly improving the accessibility of knowledge on the subject. It touches upon all aspects of electroless nickel, from the fundamentals (including thermodynamics of electroless plating, bath chemistry, and substrate preparation) to more applied areas of the field such as bath replenishment, composite coatings, post-treatments, polyalloys, graded and multilayer coatings, ultrasound assistance, applications, and properties. Contributed to by a variety of international authors to ensure different points of view and interests are addressed, this book stands as the first complete and updated state-of-the-art text on electroless nickel in the twenty-first century. It also serves as the first technical book with a strong emphasis on nickel-boron. It also focuses on environmental aspects. Including cutting-edge content presented sufficiently extensive to be directly useful to the practitioner, this book is aimed at materials scientists, metallurgists, and other professionals working with electroless nickel plating.

Download or read book Titanium Alloys written by Maciej Motyka and published by BoD – Books on Demand. This book was released on 2019-11-27 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Titanium alloys, due to unique physical and chemical properties (mainly high relative strength combined with very good corrosion resistance), are considered as an important structural metallic material used in hi-tech industries (e.g. aerospace, space technology). This book provides information on new manufacturing and processing methods of single- and two-phase titanium alloys. The eight chapters of this book are distributed over four sections. The first section (Introduction) indicates the main factors determining application areas of titanium and its alloys. The second section (Manufacturing, two chapters) concerns modern production methods for titanium and its alloys. The third section (Thermomechanical and surface treatment, three chapters) covers problems of thermomechanical processing and surface treatment used for single- and two-phase titanium alloys. The fourth section (Machining, two chapters) describes the recent results of high speed machining of Ti-6Al-4V alloy and the possibility of application of sustainable machining for titanium alloys.

Download or read book Science of Hard Materials written by R. Viswanadham and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of the first International Conference on the Science of Hard Materials held in Moran, Wyoming, Aug. 23-28, 1981. The objective of the conference was to review and advance the state of knowledge of the basic physical and chemical properties of hard materials and show how these properties influence performance in a variety of applications. To this end, the 49 con tributed papers and the four keynote papers by Prof. Fischmeister and Drs. Hintermann, Exner and Almond, present an excellent overview of the state of the art in the "science" of hard materials. The contents of these proceedings also reflect the fact that hard metal technology is now well matured and several aspects of the behavior of these materials are well understood and firmly established. Structure-property relationships in this class of materials are currently well known. Pitfalls in some of the traditional test methods have been recognized and new test methods are being developed which discriminate between intrinsic material properties and flaw content and distribution. Application of fracture mechanics, al though a late corner to the hard materials area (as compared to other structural materials), is rapidly gaining acceptance and new fracture toughness test methods are being developed. Application of modern analysis and analytical techniques to these materials has begun and entirely new and unexpected information has been obtained. For a variety of reasons, "hard metals" have dominated the research and development scene of "hard materials".

Download or read book Machining of Titanium Alloys and Composites for Aerospace Applications written by Redouane Zitoune and published by Trans Tech Publications Ltd. This book was released on 2013-07-31 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Special topic volume with invited peer reviewed papers only