Bose High Temperature Coatings

1. Auflage 2011
ISBN: 978-0-08-046955-3
Verlag: Elsevier Science & Techn.
Format: EPUB
Kopierschutz: 6 - ePub Watermark

E-Book, Englisch, 312 Seiten

High Temperature Coatings demonstrates how to counteract the thermal effects of the 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 will be supplemented with the latest reference information and additional support for finding more application-type and industry-type coatings specifications and uses, with help for the reader in finding more detailed information on a specific type of coating or a specific type of use.
· Offers 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 wide variety of coating types, including those used against high temperature corrosion and oxidative degradation, as well as thermal barrier coatings

Autoren/Hrsg.

Bose, Sudhangshu

Inhaltsverzeichnis

1;Front Cover;1
2;High Temperature Coatings;4
3;Copyright Page;5
4;Table of Contents;8
5;ABOUT THE AUTHOR;10
6;PREFACE;12
7;Chapter 1 INTRODUCTION;14
7.1;1.1 HIGH-TEMPERATURE ENVIRONMENT;14
7.2;REFERENCES;17
8;Chapter 2 FUNDAMENTAL CONCEPTS;18
8.1;2.1 THERMODYNAMIC CONCEPTS;18
8.2;2.2 CONCEPT OF KINETICS;20
8.3;2.3 CRYSTAL STRUCTURE;24
8.4;2.4 EQUILIBRIUM PHASES;27
8.5;REFERENCES;29
9;Chapter 3 SUBSTRATE ALLOYS;30
9.1;3.1 TEMPERATURE CAPABILITY OF METALS AND ALLOYS;30
9.2;3.2 STRENGTHENING MECHANISMS;30
9.3;3.3 TITANIUM ALLOYS;32
9.4;3.4 STEELS;34
9.5;3.5 NICKEL–IRON ALLOYS;36
9.6;3.6 NICKEL AND COBALT BASE SUPERALLOYS;36
9.7;3.7 NEED FOR COATINGS;39
9.8;REFERENCES;40
10;Chapter 4 OXIDATION;42
10.1;4.1 OXIDATION PROCESS;42
10.2;4.2 OXIDATION TESTING AND EVALUATION;47
10.3;4.3 OXIDATION OF ALLOYS;54
10.4;4.4 ROLES OF SPECIFIC ALLOYING CONSTITUENTS;59
10.5;4.5 OXIDATION IN THE PRESENCE OF WATER VAPOR;63
10.6;4.6 OXIDATION OF POLYCRYSTALLINE VERSUS SINGLE-CRYSTAL ALLOYS;63
10.7;REFERENCES;64
11;Chapter 5 HIGH-TEMPERATURE CORROSION;66
11.1;5.1 HOT CORROSION PROCESSES;66
11.2;5.2 HOT CORROSION OF METALS AND ALLOYS;73
11.3;5.3 ROLE OF SPECIFIC ALLOYING ELEMENTS IN HOT CORROSION OF NI AND CO BASED ALLOYS AND COATINGS;75
11.4;5.4 INFLUENCE OF OTHER CONTAMINANTS;78
11.5;5.5 HOT CORROSION OF TBCs;80
11.6;5.6 HOT CORROSION-LIKE DEGRADATION;81
11.7;REFERENCES;82
12;Chapter 6 OXIDATION- AND CORROSION-RESISTANT COATINGS;84
12.1;6.1 REQUIREMENTS FOR METALLIC COATINGS;84
12.2;6.2 COATING PROCESSES;86
12.3;6.3 DIFFUSION COATINGS;86
12.4;6.4 OVERLAY COATINGS;109
12.5;6.5 OVERLAY COATINGS BY SPRAY AND ARC PROCESSES;110
12.6;6.6 OVERLAY COATINGS BY PHYSICAL VAPOR DEPOSITION (PVD);129
12.7;6.7 RELATIVE OXIDATION AND CORROSION RESISTANCE OF COATINGS;147
12.8;6.8 MODELING OF OXIDATION AND CORROSION LIFE;150
12.9;6.9 INTERACTION OF EROSION–OXIDATION AND EROSION–CORROSION;161
12.10;REFERENCES;162
13;Chapter 7 THERMAL BARRIER COATINGS (TBCs);168
13.1;7.1 TEMPERATURE REDUCTION BY TBCs;168
13.2;7.2 MATERIALS REQUIREMENT FOR TBCs;172
13.3;7.3 PARTIALLY STABILIZED ZIRCONIA;173
13.4;7.4 PLASMA SPRAYED TBCs;175
13.5;7.5 ELECTRON BEAM PHYSICAL VAPOR DEPOSITED (EB-PVD) TBCs;197
13.6;7.6 ENVIRONMENTAL BARRIER COATINGS (EBCs);238
13.7;REFERENCES;239
14;Chapter 8 NONDESTRUCTIVE INSPECTION (NDI) OF COATINGS;246
14.1;8.1 NDI TECHNIQUES;246
14.2;REFERENCES;258
15;Chapter 9 COATINGS REPAIR;260
15.1;9.1 LIMITS TO COATINGS REPAIR;260
15.2;9.2 THE REPAIR PROCESS;261
15.3;9.3 RECOATING AND MATERIAL RESTORATION;263
15.4;REFERENCES;264
16;Chapter 10 FIELD AND SIMULATED FIELD EXPERIENCE;266
16.1;10.1 GAS TURBINE ENGINE APPLICATION;266
16.2;10.2 OTHER APPLICATIONS;283
16.3;REFERENCES;287
17;APPENDIX;290
18;AUTHOR INDEX;296
19;SUBJECT INDEX;306