Rheology, Physical and Mechanical Behavior of Materials 1 : Physical Mechanisms of Deformation and Dynamic Behavior

• Record Nr.: UNINA9910830288603321
• Autore: Leroy Maurice
• Pubbl/distr/stampa: Newark : , : John Wiley & Sons, Incorporated, , 2024; ©2023
• ISBN: 1-394-25562-4; 1-394-25560-8
• Edizione: [1st ed.]
• Descrizione fisica: 1 online resource (345 pages)
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Nota di contenuto: Cover -- Title Page -- Copyright Page -- Contents -- Preface -- Chapter 1. Dynamic Plasticity: Dislocations -- 1.1. Introduction: how to describe plasticity? -- 1.1.1. Equivalence between forming processes and mechanical tests -- 1.1.2. Early stages of strain -- 1.1.3. Multiplication of dislocations -- 1.1.4. Fine-level observations (load.unload cycles) of the beginning of plasticization -- 1.2. Strain speed: ( for shearing) -- 1.2.1. A few definitions and orders of magnitude -- 1.2.2. Influence of the strain speed -- 1.2.3. The influence of the ghistoryh of strain -- 1.2.4. Dynamic.dynamic speed jump -- 1.3. The microstructural mechanisms of plasticity -- 1.3.1. Description of a dislocation and its line -- 1.3.2. Dislocation types -- 1.3.3. Crystallographic slips -- 1.3.4. Twinning -- 1.3.5. Force on the dislocation -- Chapter 2. Obstacles and Mechanisms of Crossings -- 2.1. Obstacles -- 2.2. Nature and resistance of obstacles -- 2.3. Example of measuring dislocation speeds -- 2.4. Microstructural mechanisms of the deformation rate -- 2.5. Mechanisms due to obstacles: hardening mechanisms -- 2.5.1. Obstacles to movement due to the dislocations themselves -- 2.5.2. Interactions with the forest -- 2.5.3. (Simplified) analysis of the consolidation due to the forest dislocation -- 2.5.4. Blockages of dislocations by pileups -- 2.5.5. Piling-up of dislocations -- 2.5.6. Influence of grain size -- 2.5.7. The case of nanomaterials (very small grain size): mechanical strength and ; hardness (T less than 0.3 Tf) -- 2.5.8. Influence of vacancies -- 2.5.9. Vacancies and dislocations -- 2.5.10. Stacking and twinning faults -- 2.5.11. Lomer.Cottrell barriers -- 2.5.12. Influence of obstacles associated with alloy elements and impurities -- 2.5.13. Anchoring dislocations -- 2.5.14. Formation of loops around particles.; 2.5.15. Substitution and insertion of atoms -- 2.5.16. Evolution of the stress due to the added elements -- 2.5.17. Hardening by precipitates -- 2.6. Athermal mechanism of the movement of a dislocation -- 2.6.1. Density of dislocations and athermal stress -- 2.7. Thermally activated mechanism of the movement of a dislocation -- 2.7.1. Model of the behavior law -- 2.8. The viscous friction mechanism -- 2.8.1. Influence of viscosity of the medium on the viscous damping coefficient B -- Chapter 3. Dynamic Flows for Monocrystals and Polycrystals -- 3.1. Type of monocristal and polycrystal dynamic shear test samples (anisotropy and isotropy at high speeds) -- 3.2. The tensor of the shock stresses -- 3.3. Study of strain on a polycrystal -- 3.4. Dynamic flows by electromagnetic shocks, polycrystalline aluminum A5 -- 3.5. The case of six polycrystals -- 3.6. The case of monocrystals -- 3.6.1. Flow of a crystal -- 3.7. Models for CFCs -- 3.7.1. Viscoplastic dynamic flows of crystals: the case of aluminum ( ≃ 104 s-1) -- 3.8. Dynamics of flows shown using an ultra-fast camera -- 3.8.1. Dynamics of shear shocks -- 3.9. Viscoplasticity -- 3.9.1. Influence of phonic and electronic viscous friction: the case of lead -- 3.9.2. Viscoplasticity of metal crystals: influence of viscous friction -- 3.10. References for viscoplasticity -- Chapter 4. Limits to Static and Dynamic Formability -- 4.1. Plastic instability -- 4.1.1. Necking -- 4.1.2. Work hardening coefficient n -- 4.1.3. Instabilities studies (including speed effect ...) -- 4.1.4. Role of the strain speed -- 4.1.5. Summary -- 4.1.6. Generalized strain speed -- 4.2. Forming by pressing -- 4.2.1. Study of plastic instability -- influence of work hardening and anisotropy (characteristics of pressing thin sheets).; 4.2.2. Parameters influencing instability: influences of the work hardening n and the anisotropy r -- 4.2.3. Pressing and formability in bending of sheets, shaping of elliptical bulbs -- 4.3. Damage: area between necking and fracture, the case between Forming Limit Curves (FLCs) and Fracture Forming Limit Curves (FFLCs) -- 4.3.1. Definition -- 4.3.2. Damage measurement D -- 4.3.3. Large strains and damage -- 4.3.4. Stress curve, strain of a 30 CD4 steel that has undergone a perlite globularization annealing (as given by Gathouffi (1984)) -- 4.4. Limit of the formability during necking (FLCs) and during fracture (FFLCs): influence of the strain rate -- 4.4.1. Types of strain -- 4.4.2. Comparison of FLC by : shock by electronic action in the case of aluminum alloys -- 4.4.3. Influence of strain rates on FLCs: static and dynamic formability -- 4.4.4. Metals studied -- 4.4.5. Strain trajectories: change of ε1 under ε2 -- comparison of low and high speeds -- 4.4.6. Comparison of the values for necking Z and fracture R -- 4.4.7. Change in necking -- 4.4.8. Change in fracture -- 4.4.9. Change between necking and fracture -- 4.4.10. Examples in magnetoforming and electro-hydroforming -- Chapter 5. Dynamic Resistance to Mechanical Shocks -- 5.1. Shock stresses -- 5.1.1. Energy aspects: momentum, kinetic energy, impulse -- 5.1.2. Comparison between stress levels in static and dynamic loads -- 5.2. Resilience test -- 5.2.1. Impact by a simple pendulum -- 5.2.2. Stress from polar shock impacts -- 5.2.3. Shock with rebound, coefficient of restitution, energy losses -- 5.2.4. Effect of resistance to movement, speed and stress upon impact -- 5.2.5. Resistant force proportional to the square of the instantaneous speed v2 -- 5.2.6. Elastoplastic resistance to impact and deformation of a solid -- 5.3. Typical loads, ; stress waves.; 5.3.1. Longitudinal compression waves, mechanical impedance, stress -- 5.3.2. Wave step diagram -- 5.4. Dynamic tests, Hopkinson technique, laws of behavior -- 5.4.1. Principle of dynamic tests with Hopkinson bars -- 5.4.2. Measurement of strain by extensometry gauges -- 5.4.3. Data acquisition -- 5.4.4. Data processing: analysis of dynamic behavior tests of materials -- 5.4.5. Dynamic tension and torsion -- 5.4.6. Dynamic shear of monocrystals and polycrystals -- Appendix A. Primary Times of Mechanisms -- References -- Index -- EULA.

Advances in porcelain enamel technology : a collection of papers presented at the 70th and 71st Porcelain Enamel Institute Technical Forum, June 9-12, 2008, May 4-7, 2009, Nashville, TN / / chief editor, Charles Baldwin; assistant editors, 2008 -- Holger Evele, 2009 -- Renee Pershinsky

• Record Nr.: UNINA9911019354303321
• Pubbl/distr/stampa: Hoboken, NJ, : Wiley, c 2010
• ISBN: 9786612707797; 9781282707795; 1282707795; 9780470640906; 0470640901; 9780470640890; 0470640898
• Descrizione fisica: 1 online resource (205 p.)
• Collana: Ceramic transactions ; ; 211
• Altri autori (Persone): BaldwinCharles; EveleHolger; PershinskyRenee
• Disciplina: 666.2
• Soggetti: Enamel and enameling; Ceramics
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: "American Ceramic Society."
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Advances in Porcelain Enamel Technology; Contents; Preface; 2008 PEI Officers; 2009 PEI Officers; 2008 Technical Forum Committee; 2009 Technical Forum Committee; Past Chairs of PEI Technical Forums; 2008 PEI Tech Forum; Dense Phase Pumping and Spraying of P/E Powder; Development of the Cold Roll RP45 Grade for Water Heater Tank Bodies; Energy Cost in Washer Systems; Comparison of Cobalt and Nickel in Frit Formulations; Raw Materials and Energy: Influence on Enamels Market; LustReflex Coatings for Porcelain Enamel; Bulk Enamel Distribution System; Porcelain Enamel Reclaim Technology Review; Progress in the Use of Specialized Enamel Coatings to Bond Concrete to SteelPerformance Coatings for Energy Efficiency; From Decorative to Functional Printing Colors; ISO 9001:2000-Why Do It?; New EU Chemical Regulations Will Significantly Impact USA and Global Businesses: REACH; A Heat Resistant Label Material and Its Application in High Temperature Processing; Furnace Moisture Issues; Furnaces and Firing; Making Porcelain Enamel More Competitive with Stainless Steel: A Holistic Approach to Process Improvement; Requirements for the Use of Porcelain Enamel in Industrial Coatings; Reactive Vitreous Enamel Coatings for Concrete Reinforcing Steel2009 PEI Tech Forum; Energy Costs in Washer Systems; 21 st Century Cleaning Systems; Using Control Systems to Go ""Green"" While Saving You Money!; Porcelain Enamel Powder Coating Systems for Oven Cavities Worldwide; Dense Phase Pumping of Porcelain Enamel Powder-Part II; Case Study: Process Rheology of Cover Coats at Engineered Storage Products Company; Water Heater and Inside Coating with Wet Enamel, Usable for Solar Energy; Sustainability-More Than a Buzz Word; Decorating with Ceramic Decal; Digital Ceramic Printing; Preliminary Evaluations of Functional Coatings for Improved Chemical and Water ResistanceImproving the Covering Power of Titanium White Cover Coat by Controlling Bubble Structure; Chemically Resistant Enamel; The Who, What, Why, Where and When of Cast Iron Enameling; Author Index
• Sommario/riassunto: Advances in Porcelain Enamel Technology: Ceramic Transactions Volume 211 provides a compilation of PEI Technical Forum proceedings covering the latest scientific and technological advancement in porcelain enamel technology. Logically organized, carefully selected articles cover topics ranging from Efficiency and Dense Phase Pumping of Porcelain Enamel Powder to Digital Ceramic Printing and Raw Materials and Energy: Their Influence on Enamels Market. Advances in Porcelain Enamel Technology: Ceramic Transactions Volume 211 is the one-stop resource for understanding the most importa