Protective Coatings for Turbine Blades
Title | Protective Coatings for Turbine Blades PDF eBook |
Author | Y. Tamarin |
Publisher | ASM International |
Pages | 249 |
Release | 2002 |
Genre | Aircraft gas-turbines |
ISBN | 1615030700 |
This book addresses the problem of surface protection for aircraft engine turbine blades. It is based on the author's 30+ years of work on the development and application of coatings to protect against oxidation and hot corrosion. It describes and details a methodology for optimizing turbine blade surface protection. The distinctions of this book from other publications on this topic include: The performance of protective coatings is assessed and evaluated by the complex interconnections of their chemical and phase composition, structure, and physical-mechanical properties; The properties of overlay coatings are given for the wide range of compositions, including the possible coatings states after their production and long-term service; The principles for calculating the stresses and strains for coated turbine blades are reviewed.
DEVELOPMENT OF PROTECTIVE COATINGS FOR SINGLE CRYSTAL TURBINE BLADES.
Title | DEVELOPMENT OF PROTECTIVE COATINGS FOR SINGLE CRYSTAL TURBINE BLADES. PDF eBook |
Author | |
Publisher | |
Pages | 47 |
Release | 2006 |
Genre | |
ISBN |
Turbine blades in coal derived syngas systems are subject to oxidation and corrosion due to high steam temperature and pressure. Thermal barrier coatings (TBCs) are developed to address these problems. The emphasis is on prime-reliant design and a better coating architecture, having high temperature and corrosion resistance properties for turbine blades. In Phase I, UES Inc. proposed to develop, characterize and optimize a prime reliant TBC system, having smooth and defect-free NiCoCrAlY bond layer and a defect free oxide sublayer, using a filtered arc technology. Phase I work demonstrated the deposition of highly dense, smooth and defect free NiCoCrAlY bond coat on a single crystal CMSX-4 substrate and the deposition of alpha-alumina and yttrium aluminum garnet (YAG) sublayer on top of the bond coat. Isothermal and cyclic oxidation test and pre- and post-characterization of these layers, in Phase I work, (with and without top TBC layer of commercial EB PVD YSZ) revealed significant performance enhancement.
Gas Turbines
Title | Gas Turbines PDF eBook |
Author | Gurrappa Injeti |
Publisher | IntechOpen |
Pages | 376 |
Release | 2010-09-27 |
Genre | Technology & Engineering |
ISBN | 9789533071466 |
This book is intended to provide valuable information for the analysis and design of various gas turbine engines for different applications. The target audience for this book is design, maintenance, materials, aerospace and mechanical engineers. The design and maintenance engineers in the gas turbine and aircraft industry will benefit immensely from the integration and system discussions in the book. The chapters are of high relevance and interest to manufacturers, researchers and academicians as well.
Advances in Wind Turbine Blade Design and Materials
Title | Advances in Wind Turbine Blade Design and Materials PDF eBook |
Author | Povl Brondsted |
Publisher | Elsevier |
Pages | 485 |
Release | 2013-10-31 |
Genre | Technology & Engineering |
ISBN | 0857097288 |
Wind energy is gaining critical ground in the area of renewable energy, with wind energy being predicted to provide up to 8% of the world’s consumption of electricity by 2021. Advances in wind turbine blade design and materials reviews the design and functionality of wind turbine rotor blades as well as the requirements and challenges for composite materials used in both current and future designs of wind turbine blades. Part one outlines the challenges and developments in wind turbine blade design, including aerodynamic and aeroelastic design features, fatigue loads on wind turbine blades, and characteristics of wind turbine blade airfoils. Part two discusses the fatigue behavior of composite wind turbine blades, including the micromechanical modelling and fatigue life prediction of wind turbine blade composite materials, and the effects of resin and reinforcement variations on the fatigue resistance of wind turbine blades. The final part of the book describes advances in wind turbine blade materials, development and testing, including biobased composites, surface protection and coatings, structural performance testing and the design, manufacture and testing of small wind turbine blades. Advances in wind turbine blade design and materials offers a comprehensive review of the recent advances and challenges encountered in wind turbine blade materials and design, and will provide an invaluable reference for researchers and innovators in the field of wind energy production, including materials scientists and engineers, wind turbine blade manufacturers and maintenance technicians, scientists, researchers and academics. Reviews the design and functionality of wind turbine rotor blades Examines the requirements and challenges for composite materials used in both current and future designs of wind turbine blades Provides an invaluable reference for researchers and innovators in the field of wind energy production
Field Evaluation of Six Protective Coatings Applied to T-56 Turbine Blades After 2000 Hours of Engine Use
Title | Field Evaluation of Six Protective Coatings Applied to T-56 Turbine Blades After 2000 Hours of Engine Use PDF eBook |
Author | |
Publisher | |
Pages | 39 |
Release | 1992 |
Genre | |
ISBN |
The first-stage high-pressure turbine blades in RAAF T-56 engines have a rejection rate which is unacceptably high. It has been revealed (1) that the current coating, a conventional nickel aluminide, has a greater than 60% rejection rate after 2000 hours. Consequently, a trial programme was established to assess the benefits of five alternative protective coatings and to determine which coatings, if any, could withstand up to 3000 engine operating hours. A previous report demonstrated the potential of platinum and platinum/rhodium modified aluminides after 1500 hours of engine operation. This report, after approximately 2000 hours of service, supports the previous recommendations that the precious metal aluminides offer superior resistance to hot corrosion than the conventional aluminides and chromium-modified aluminides. The inability of the silicon-modified aluminide to form an evenly distributed coating over the entire blade renders it unsuitable ... Protective coatings, Hot corrosion, Allison T56 engines, Gas turbine blades.
Coatings for High-Temperature Structural Materials
Title | Coatings for High-Temperature Structural Materials PDF eBook |
Author | National Research Council |
Publisher | National Academies Press |
Pages | 102 |
Release | 1996-05-13 |
Genre | Technology & Engineering |
ISBN | 0309176026 |
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.
Field Evaluation of Six Protective Coatings Applied to T-56 Turbine Blades After 2500 Hours of Engine Use
Title | Field Evaluation of Six Protective Coatings Applied to T-56 Turbine Blades After 2500 Hours of Engine Use PDF eBook |
Author | S. G. Russo |
Publisher | |
Pages | 34 |
Release | 1993 |
Genre | Aircraft gas-turbines |
ISBN |