High Temperature Coatings, Second Edition, demonstrates how to counteract the thermal effects of rapid corrosion and degradation of exposed materials and equipment that can occur under high operating temperatures. This is the first true practical guide on the use of thermally protective coatings for high-temperature applications, including the latest developments in materials used for protective coatings. It covers the make-up and behavior of such materials under thermal stress and the methods used for applying them to specific types of substrates, as well as invaluable advice on inspection and repair of existing thermal coatings.
With his long experience in the aerospace gas turbine industry, the author has compiled the very latest in coating materials and coating technologies, as well as hard-to-find guidance on maintaining and repairing thermal coatings, including appropriate inspection protocols. The book is supplemented with the latest reference information and additional support to help readers find more application- and industry-type coatings specifications and uses.
- Offers an overview of the underlying fundamental concepts of thermally-protective coatings, including thermodynamics, energy kinetics, crystallography and equilibrium phases
- Covers essential chemistry and physics of underlying substrates, including steels, nickel-iron alloys, nickel-cobalt alloys and titanium alloys
- Provides detailed guidance on a wide variety of coating types, including those used against high temperature corrosion and oxidative degradation and thermal barrier coatings
Please Note: This is an On Demand product, delivery may take up to 11 working days after payment has been received.
About the Author Preface to the Second Edition Preface to the First Edition
Chapter 1. Introduction 1.1 High Temperature Environment References Chapter 2. Fundamental Concepts 2.1 Thermodynamic Concepts 2.2 Concept of Kinetics 2.3 Crystal Structure 2.4 Equilibrium Phases 2.5 Mechanical Behavior References Chapter 3. Substrate Materials 3.1 Temperature Capability of metal, alloys, intermetallics, ceramics, and composites 3.2 Strengthening Mechanisms 3.3 Titanium Alloys 3.4 Steels 3.5 Nickel-Iron Alloys 3.6 Nickel and Cobalt base Superalloys 3.7 Ceramics, Refractory Intermetallics & Composites 3.8 Need for Coatings References Chapter 4. Oxidation 4.1 Oxidation Process 4.2 Oxidation Testing and Evaluation 4.3 Oxidation of Alloys 4.4 Role of Specific Alloying Constituents 4.5 Oxidation in the Presence of Water vapor 4.6 Oxidation of Polycrystalline Alloys versus Single Crystals 4.7 Oxidation of Intermetallic ?TiAl References Chapter 5. High temperature corrosion 5.1 Hot Corrosion Process 5.2 Hot Corrosion of Metals and Alloys 5.3 Role of Specific Alloying Elements in Hot Corrosion of Ni and Co Based Alloys and 5.4 Influence of Other Contaminants 5.5 Hot Corrosion of TBC 5.6 Hot Corrosion
like Degradation References Chapter 6. Oxidation & corrosion resistant coatings 6.1 Requirements for Metallic Coatings 6.2 Coatings Processes 6.3 Diffusion Coatings 6.4 Overlay Coatings 6.5 Overlay Coatings by Spray and Arc Processes 6.6 Overlay Coatings by Physical Vapor Deposition (PVD) 6.7 Relative Oxidation and Corrosion Resistance of Coatings 6.8 Modeling of Oxidation and Corrosion Life 6.9 Interaction of Erosion
Oxidation and Erosion
Corrosion References Chapter 7. Thermal Barrier Coatings (TBCs) 7.1 Temperature Reduction by TBC 7.2 Materials Requirements for TBC 7.3 Partially Stabilized Zirconia 7.4 Plasma Sprayed TBC 7.5 Electron Beam Physical Vapor deposited (EB-PVD) TBC 7.6 Environmental Barrier Coatings (EBC) References Chapter 8 . Nondestructive Inspection of Coatings 8.1 NDI Techniques References Chapter 9. Coatings repair 9.1 Limits to Coatings Repair 9.2 The Repair Process 9.3 Recoating and Material Restoration References Chapter 10. Field And Simulated Field Experience 10.1 Gas Turbine Engine Application 10.2 Other Applications 10.3 New Field Observation on Gas Turbine Engine Hot section Parts References
APPENDIX A1 Abradable Blade Outer Air Seal (BOAS) A2 Metal and Ceramic Coating Surface Temperature as Functions of Coating Thickness and Ceramic Coating Thermal Conductivity A3 A Simple Microstructure based Model to explain the difference in Thermal Conductivity between APS and EB-PVD TBC A4 Sol Gel Process for deposition of Zirconia based topcoat of TBC
Dr. Sudhangshu Bose is a retired Fellow and Manager, and currently consultant at Pratt & Whitney, the manufacturer of Gas Turbine and Rocket Engines. He has also been Professor of Practice in Mechanical Engineering at Rensselaer Polytechnic Institute, Troy, New York and Hartford, Connecticut, USA. He holds a Ph.D in Materials Science and Engineering from University of California, Berkeley, having previously obtained B.Sc (Honors) and M.Sc in Physics from Ranchi University, Ranchi, India. While at Pratt & Whitney and its sister divisions, Dr. Bose has conducted and managed research, development, and testing of advanced materials and processes including oxidation and corrosion in fuel cells and gas turbine engine, catalysis, high temperature coatings, superalloys, intermetallics, and ceramic matrix composites. He holds over 24 patents. As a Professor of Practice at Rensselaer, he taught courses and supervised research in the areas of Superalloys, High Temperature Coatings, and Conventional and Renewable Energy Technologies. He is currently associated with the Department of Mechanical Engineering and Materials Science at Yale University, New Haven, Connecticut.