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Title:
Introduction to Low Pressure Gas Dynamic Spray - Physics & Technology |
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Division: General Materials / John Wiley & Son / 英文版 |
Author/Editor: Roman Gr. Maev, Volf Leshchynsky Star:  |
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ISBN: 352740659X |
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Introduce Date: 2008年03月24日17:47 , Release Date: 2008年03月24日18:22 |
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Introducer: Metalcarbene , Rate: 0/73 |
| Format: pdf(editorial) Download |
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| Description: |
Introduction to Low Pressure Gas Dynamic Spray: Physics & Technology
Roman Gr. Maev, Volf Leshchynsky
ISBN: 978-3-527-40659-3
Hardcover
244 pages
March 2008
Wiley List Price: US $145.00
Written by the inventor of the Gas Dynamic Spray (GDS) technique, this first monograph on the topic brings the understanding of the GDS coating formation process to a new qualitative nanostructural level, while introducing it to industrial and technological experts so that they can develop a new generation of coatings materials.
Representing the results of over ten years of research in the field, the material discussed here covers nearly every aspect of the physical principles and applications of the GDS process, including topics in applied solid state physics, materials science, nanotechnology, and materials characterization.
With contributions from researchers working in various laboratories, academic institutions and industries, this book is written for those wishing to apply this novel spraying technology in industry and who are involved in the development of new specific material properties, whether engineers or experts in the automotive, aircraft, household machinery, nuclear power, materials development or other industries.
Preface.
1 Introduction.
1.1 General Description.
1.2 Overview of Competitive Technologies.
1.2.1 Coating Characterization.
1.2.2 Flame Spraying.
1.2.3 ArcWire Spraying.
1.2.4 Plasma Spraying.
1.2.5 Rapid Prototyping.
1.2.6 Plasma Deposition Manufacturing.
1.2.7 Explosive Cladding.
1.3 Concluding Remarks.
2 Impact Features of Gas Dynamic Spray Technology.
2.1 Impact Phenomena in GDS.
2.1.1 Main Features.
2.1.2 Rebound and Erosion Processes.
2.1.3 GDS Processes.
2.2 One Particle Impact in GDS.
2.2.1 Shear Localization Phenomenon.
2.2.2 Adiabatic Shear Instability in GDS.
2.2.3 Experiments Relating to Particle Impact.
2.3 Concluding Remarks.
3 Densification and Structure Formation of the Particulate Ensemble.
3.1 Identification of Various Phenomena.
3.2 Observations of GDS Consolidated Materials.
3.3 Energy Requirements for GDS Shock Consolidation.
3.3.1 Plastic Deformation Energy.
3.3.2 Microkinetic Energy.
3.3.3 Frictional Energy.
3.3.4 Adiabatic Shear Band Formation Energy.
3.3.5 Defect Energy.
3.4 Computation of ASB Energy Parameters.
3.5 Shear Localization During Particle Shock Consolidation.
3.6 Impact Powder Compaction Model.
3.7 Behavior of Consolidating Powder Under Compression.
3.7.1 Constitutive Function.
3.7.2 Yield Function and Property Estimations.
3.8 Consolidation Parameters of GDS and Shear Compression.
3.8.1 Estimation of Compaction Parameters.
3.8.1.1 GDS Experiments.
3.8.1.2 Shear Compaction Modeling.
3.9 Modeling Results and Discussion.
3.9.1 ASBWidth Evaluation.
3.9.2 Yield Stress of Powder Material.
3.10 Concluding Remarks.
4 Low-Pressure GDS System.
4.1 State-of-the-Art Cold Spray Systems.
4.2 State-of-the-Art Powder Feeding Systems.
4.3 Modification of the Low-Pressure Portable GDS System.
4.4 An Industrial Low-Pressure Portable GDS System.
5 General Analysis of Low-Pressure GDS.
5.1 Statement of Problem.
5.2 Experimental Procedure.
5.3 Experimental Results.
5.3.1 Deposition Efficiency.
5.3.2 The Effect of the Particle Mass Flow Rate.
5.3.3 The Build-up Parameter.
5.3.4 Structure and Properties.
5.4 Basic Mechanisms.
5.5 Concluding Remarks.
6 Diagnostics of Spray Parameters: Characterization of the Powder-Laden Jet.
6.1 General Relationships.
6.1.1 The Governing Equations of Single-Phase Turbulent Flow.
6.1.2 The k–Model for Turbulent Flows.
6.1.3 Particle Dynamics in Gas Flow.
6.2 Gas Flow and Particle Acceleration.
6.2.1 Computational Fluid Dynamics (CFD).
6.2.2 An Engineering Model with Particle Friction.
6.3 Calculated Data and Discussion.
6.3.1 Simulation of Gas-Particle Flow in the Nozzle.
6.3.2 Influence of Gas Pressure.
6.3.3 Effects of Particle Concentration.
6.3.4 Effects of NozzleWall Friction.
6.4 Free Jet Characterization.
6.4.1 Shock Wave Features of the Jet.
6.4.2 An Engineering Model of the Free Jet.
6.4.3 Particle Flow StructureWithin the Normal Shock Region.
6.4.4 Particle Collisions.
6.5 Concluding Remarks.
7 Deposition Efficiency and Shock Wave Effects at GDS.
7.1 Model Structure.
7.1.1 Statement of Task.
7.1.2 Gas Flow.
7.1.3 Particle Motion.
7.1.4 Deposition Efficiency.
7.2 Calculations and Discussion.
7.3 Critical Velocity Evaluation on the Basis of Rebound and Adhesion Phenomena.
7.4 Concluding Remarks.
8 Structure and Properties of GDS Sprayed Coatings.
8.1 General Remarks.
8.2 Powder Materials for Low-Pressure Gas Dynamic Spray.
8.2.1 Features of GDS Coatings.
8.2.1.1 Microstructure.
8.2.1.2 Interparticle Bonding.
8.2.2 Overview of GDS Materials.
8.2.3 Definition of Structure Parameters.
8.3 Structure and Mechanical Properties of Composite Coatings.
8.3.1 Methods of Testing.
8.3.1.1 Strength Tests.
8.3.1.2 Determining the Elastic Modulus.
8.3.1.3 Preparation of Samples.
8.3.2 Analysis of the Elastic Modulus.
8.3.2.1 General Relationships.
8.3.2.2 Rule of Mixture (ROM) Bounds.
8.3.2.3 Hashin–Shtrikman (H–S) Model.
8.3.2.4 Effect of Porosity on Elastic Constants.
8.3.2.5 Development of MCA Model for GDS Process.
8.3.2.6 Elastic Modulus and Microstructure of LPGDS Composites.
8.3.3 Load-Deformation Behavior of GDS Composites.
8.3.3.1 Strengthening GDS composites.
8.3.4 Failure Criterion and Microstructural Aspects of Crack Propagation.
8.3.4.1 Analysis of LPGDS Composite Fracture Characteristics.
8.4 Effect of Substrate Properties and Surface on the Deposition Process.
8.4.1 General Analysis and Effects of Residual Stresses.
8.4.2 Microstructure Analysis of Interface.
9 Low-Pressure GDS Applications.
9.1 General Analysis.
9.2 Repair Applications of GDS Technology.
9.2.1 LPGDS Composite Coatings for Mechanical Components.
9.2.2 LPGDS Technology Characterization and Experimental Procedure.
9.2.3 Results and Discussion.
9.2.3.1 Characterization.
9.2.3.2 SlidingWear Behavior.
9.2.3.3 Analysis of Worn Surfaces.
9.2.3.4 Wear Microstructure.
9.2.3.5 Wear Process.
9.2.4 Casting Repair.
9.2.5 Casting Die Components Repair.
9.2.6 Car Body Shape Repair.
9.3 Hardening by LPGDS Deposition.
9.3.1 General Remarks.
9.3.2 LPGDS of Ni–SiC Powder Mixtures.
9.3.2.1 Deposition Efficiency.
9.3.2.2 Microhardness and Microscratching.
9.4 Corrosion Protection Through GDS Deposition.
9.4.1 General Remarks.
9.4.2 Examination of Al–Zn-based Sacrificial Coatings.
9.5 GDS Processing of Smart Components.
9.5.1 General Remarks.
9.5.2 Technology Description.
9.5.3 Results and Discussion.
9.6 Concluding Remarks.
Bibliography.
Roman Gr. Maev received his Ph.D. from the Physical Institute of the Russian Academy of Sciences in 1973 and his D.Sc. in acoustic microscopy from the Russian Academy of Sciences, Moscow, in 2002. From 1994 to 1997, he held a post as Director of the Acoustic Microscopy Center of the Russian Academy of Sciences, then established the Centre for Imaging Research and Advanced Material Characterization at the University of Windsor, Canada. He is currently a Full Faculty Professor at the Physics Department at the same University and since 2001 the Chairholder of the NSERC/DaimlerChrysler/Industrial Research Chair in Applied Solid State Physics and Material Characterization. Professor Maev's research interests focus on the fundamentals of condensed matter, physical acoustics, ultrasonic imaging, and acoustic microscopy. He has published numerous books, more than 300 scientific papers, and holds twenty patents.
Volf Leshchynsky received his Ph.D. from the Technical Physics Institute at the Russian Academy of Sciences, Moscow, in 1968, and his D.Sc. from the Institute of Metallurgy at the same University in 1989. He then held a chair as professor of the Metal Forming Institute, Poznan, Poland, and became Head of the Metal Forming Department at the East Ukrainian University. He is currently a visiting professor at the Physics Department of the University of Windsor, Canada, where he conducts research in new powder metallurgy, nanostructuring, and cold spray techniques. Dr. Leshchynsky's research interests include the fundamentals of nanotechnology and nanostructured materials, and the development and application of powder spraying and powder metallurgy. He is the author of more than 150 scientific papers and holds thirty patents.
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