Evaluation of Hot Corrosion Behavior of Thermal Barrier Coatings

Evaluation of Hot Corrosion Behavior of Thermal Barrier Coatings PDF Author: P. E. Hodge
Publisher:
ISBN:
Category : Corrosion
Languages : en
Pages : 16

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Evaluation of Hot Corrosion Behavior of Thermal Barrier Coatings

Evaluation of Hot Corrosion Behavior of Thermal Barrier Coatings PDF Author: P. E. Hodge
Publisher:
ISBN:
Category : Corrosion
Languages : en
Pages : 16

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Book Description


Evaluation of the Hot-Corrosion Behavior of Thermal Barrier Coatings

Evaluation of the Hot-Corrosion Behavior of Thermal Barrier Coatings PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 31

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Book Description
In order to assess the sulfidation resistance of thermal barrier coatings for marine gas turbines, ceramic materials used in the coatings were exposed to molten sodium sulfate for periods up to 1000 hours and the coatings themselves were burner rig tested at high salt levels. The ceramics (stabilized zirconias) were found to be resistant to sulfidation attack while the graded metal/ceramic coatings were resistant to attack and were protective to the substrate alloys only when very adherent. It was also shown that coatings with a high metallic content performed well in this respect, while still providing significant thermal insulation. Tests with hollow, air-cooled, coated specimens indicated that a sufficiently high external surface temperature can retard sulfidation attack at lower temperature interior coating sites. (Modified author abstract).

Thermal Barrier Coatings

Thermal Barrier Coatings PDF Author: Hongbo Guo
Publisher: Woodhead Publishing
ISBN: 0128190280
Category : Science
Languages : en
Pages : 490

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Book Description
Thermal Barrier Coatings, Second Edition plays a critical role in counteracting the effects of corrosion and degradation of exposed materials in high-temperature environments such as gas turbine and aero-engines. This updated edition reviews recent advances in the processing and performance of thermal barrier coatings, as well as their failure mechanisms. Novel technologies for the manufacturing of thermal barrier coatings (TBCs) such as plasma spray-physical vapor deposition and suspension plasma spray, are covered, as well as severe degradation of TBCs caused by CMAS attack. In addition to discussions of new materials and technologies, an outlook about next generation TBCs, including T/EBCs is discussed.This edition will provide the fundamental science and engineering of thermal barrier coatings for researchers in the field of TBCs, as well as students looking for a tutorial. - Includes coverage of emerging materials, such as rare-earth doped ceramics - Presents the latest on plasma spray-physical vapor deposition and suspension (solution precursor) - Discusses the degradation of TBCs caused by CMAS attack and its protection - Looks at thermally environmental barrier coatings, interdiffusion and diffusion barrier

High Temperature Coatings

High Temperature Coatings PDF Author: Sudhangshu Bose
Publisher: Butterworth-Heinemann
ISBN: 0128047437
Category : Technology & Engineering
Languages : en
Pages : 418

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Book Description
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

Science and Technology of Thermal Barrier Coatings

Science and Technology of Thermal Barrier Coatings PDF Author: Yeon-Gil Jung
Publisher: MDPI
ISBN: 3036503188
Category : Technology & Engineering
Languages : en
Pages : 142

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Book Description
TBC materials in the hot components of a gas turbine are exposed to extremely harsh environments. Therefore, the evaluation of various environmental factors in applying new TBCs is essential. Understanding the mechanisms for degradation which occur in comprehensive environments plays an important role in preventing it and improving the lifetime performance. The development of novel coating techniques can also have a significant impact on lifetime performance as they can alter the microstructure of the coating and alter the various properties resulting from it. This Special Issue presents an original research paper that reports the development of novel TBCs, particularly the application of advanced deposition techniques and novel materials.

High-Temperature Corrosion and Materials Applications

High-Temperature Corrosion and Materials Applications PDF Author: George Y. Lai
Publisher: ASM International
ISBN: 1615030557
Category : Technology & Engineering
Languages : en
Pages : 469

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Book Description
George Lai's 1990 book, High-Temperature Corrosion of Engineering Alloys, is recognized as authoritative and is frequently consulted and often cited by those in the industry. His new book, almost double in size with seven more chapters, addresses the new concerns, new technologies, and new materials available for those engaged in high-temperature applications. As we strive for energy efficiency, the realm of high-temperature environments is expanding and the need for information on high temperature materials applications was never greater. In addition to extensive expansion on most of the content of the original book, new topics include erosion and erosion-corrosion, low NOx combustion in coal-fired boilers, fluidized bed combustion, and the special demands of waste-to-energy boilers, waste incinerators, and black liquor recovery boilers in the pulp and paper industry. The corrosion induced by liquid metals is discussed and protection options are presented.

The Superalloys

The Superalloys PDF Author: Roger C. Reed
Publisher: Cambridge University Press
ISBN: 1139458639
Category : Technology & Engineering
Languages : en
Pages : 363

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Book Description
Superalloys are unique high-temperature materials used in gas turbine engines, which display excellent resistance to mechanical and chemical degradation. This book introduces the metallurgical principles which have guided their development. Suitable for graduate students and researchers, it includes exercises and additional resources at www.cambridge.org/9780521859042.

Thermal Barrier Coatings: Failure Theory and Evaluation Technology

Thermal Barrier Coatings: Failure Theory and Evaluation Technology PDF Author: Yichun Zhou
Publisher: Springer Nature
ISBN: 9811927235
Category : Science
Languages : en
Pages : 943

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Book Description
This book highlights the failure theories and evaluation techniques of thermal barrier coatings, covering the thermal-mechanical–chemical coupling theories, performance and damage characterization techniques, and related evaluations. Thermal barrier coatings are the key thermal protection materials for high-temperature components in advanced aeroengines. Coating spallation is a major technical bottleneck faced by researchers. The extremely complex microstructure, diverse service environments, and failure behaviors bring challenges to the spallation analysis in terms of the selective use of mechanical theories, experimental methods, and testing platforms. In the book, the authors provide a systematic summary of the latest research and technological advances and present their insights and findings in the past couple of decades. This book is not only suitable for researchers and engineers in thermal barrier coatings and related fields but also a good reference for upper-undergraduate and postgraduate students of materials science and mechanics majors.

Future Development of Thermal Spray Coatings

Future Development of Thermal Spray Coatings PDF Author: Nuria Espallargas
Publisher: Elsevier
ISBN: 0857097741
Category : Science
Languages : en
Pages : 301

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Book Description
Future Development of Thermal Spray Coatings discusses the latest developments and research trends in the thermal spray industry. The book presents a timely guide to new applications and techniques. After an introduction to thermal spray coatings by the editor, Part One covers new types and properties of thermal spray coatings. Chapters look at feedstock suspensions and solutions, the application of solution precursor spray techniques to obtain ceramic films and coatings, cold spray techniques and warm spray technology amongst others. Part Two of the book moves on to discuss new applications for thermal spray coatings such as the use of thermal spray coatings in environmental barrier coatings, thermal spray coatings in renewable energy applications and manufacturing engineering in thermal spray technologies by advanced robot systems and process kinematics. - Timely guide on the current advancements and research trends in thermal spray technology - Reviews different types of thermal spray coatings - Presents a wide variety of applications for this emerging technology

Coatings for High-Temperature Structural Materials

Coatings for High-Temperature Structural Materials PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309176026
Category : Technology & Engineering
Languages : en
Pages : 102

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Book Description
This book assesses the state of the art of coatings materials and processes for gas-turbine blades and vanes, determines potential applications of coatings in high-temperature environments, identifies needs for improved coatings in terms of performance enhancements, design considerations, and fabrication processes, assesses durability of advanced coating systems in expected service environments, and discusses the required inspection, repair, and maintenance methods. The promising areas for research and development of materials and processes for improved coating systems and the approaches to increased coating standardization are identified, with an emphasis on materials and processes with the potential for improved performance, quality, reproducibility, or manufacturing cost reduction.