Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Hot Corrosion In Marine Gas Turbine
Download Hot Corrosion In Marine Gas Turbine full books in PDF, epub, and Kindle. Read online Hot Corrosion In Marine Gas Turbine ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis HOT CORROSION IN MARINE GAS TURBINE. by : G. J Danek (Jr)
Download or read book HOT CORROSION IN MARINE GAS TURBINE. written by G. J Danek (Jr) and published by . This book was released on 1966 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: The phenomenon of hot corrosion in marine gas turbines is stimulated by the presence of sodium sulfate. Two avenues can be followed to minimize deterioration by hot corrosion: (1) control of environmental conditions to prevent the formation of a molten slag and (2) development of materials to resist corrosive attack. Several techniques have been proposed to curtail the formation of a fused slag: limiting the gas turbine operating temperature which, though effective, seriously limits efficiency and fuel economy (present method); eliminating sea salt from the combustion zone by filtering to avoid formation of the aggressive environment; and other promising techniques for controlling environmental conditions such as blade cooling and fuel additives. The development of materials with built-in hot corrosion resistance would provide the most desirable solution to the problem. Therefore, considerable effort is being expended to devise tailor-made coatings and alloys. Supporting the development efforts are mechanism studies which are aimed at understanding of the interactions between the marine gas turbine environment and hot section materials, and identifying beneficial alloying constituents. Experience so far indicates that none of the specific approaches alone will provide a complete solution to the problem. (Author).
Book Synopsis State-of-the-art Survey on Hot Corrosion in Marine Gas-turbine Engines by : G. J. Danek
Download or read book State-of-the-art Survey on Hot Corrosion in Marine Gas-turbine Engines written by G. J. Danek and published by . This book was released on 1965 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: This summary describes a state-of-the-art survey of hot corrosion problems which can seriously limit the suitability of gas-turbine engines for marine propulsion systems. Catastrophic attack of nickel- and cobalt-base superalloys at temperatures above 1550 F is attributed to the action of a molten slag that forms by the reaction of ingested sea salt and sulfur contained in the fuel. A general lack of agreement was foudn to exist among investigators on the mechanisms of sulfidation corrosion, methods of sorting and screening materials, resistance os specific materials to attack, and proposed solutions to the problem. Nevertheless, the collected information provided valuable guidance in formulating the Navy's Marine Gas-Turbine Alloy Development Program. A description of this program and specifications selected for standardized equipment to evaluate sulfidation resistance are presented. (Author).
Book Synopsis Hot Corrosion Problems Associated with Gas Turbines by :
Download or read book Hot Corrosion Problems Associated with Gas Turbines written by and published by . This book was released on 1967 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hot corrosion in marine gas turbines by : G. J. Danek
Download or read book Hot corrosion in marine gas turbines written by G. J. Danek and published by . This book was released on 1966 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hot Corrosion and Protection of Marine Gas Turbine Materials by : M. Hocking
Download or read book Hot Corrosion and Protection of Marine Gas Turbine Materials written by M. Hocking and published by . This book was released on with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Marine Gas Turbine Hot Corrosion Dependence on Ingested Salt Levels by : R. H. Barkalow
Download or read book Marine Gas Turbine Hot Corrosion Dependence on Ingested Salt Levels written by R. H. Barkalow and published by . This book was released on 1979 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbine section hardware in marine engines is susceptible to hot corrosion attack induced by salt deposition. In attempting to control this type of materials degradation, it is necessary to examine the dependence of hot corrosion on ingested salt level and to determine the deposition rate below which hot corrosion attack will be negligible. Test specimens (uncoated and aluminized Mar-M509 and IN792, CoCrAlY-coated IN 792) were exposed at 700 and 900 C in laboratory tube furnaces to conditions which induce hot corrosion attack. The microstructures developed in these tests were compared with those observed in service hardware. A test at 700 C with a salt deposit of sodium sulfate, either pure or mixed with metallic sulfates, and a gaseous environment of oxygen with approximately .0001 atm SO3 was found to most closely duplicate the degradation microstructure most common in hardware from marine service. Results support the hypothesis that any condensed salt deposit is likely to produce unacceptable hot corrosion and hence the only safe ingestion level is that which produces no salt deposition on turbine hardware.
Book Synopsis Hot Corrosion & Protection Mechanisms of Marine Gas Turbine Materials by : M. G. Hocking
Download or read book Hot Corrosion & Protection Mechanisms of Marine Gas Turbine Materials written by M. G. Hocking and published by . This book was released on 1985* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Predicting Type II Hot Corrosion for Marine Gas Turbines by : Christos I. Stathopoulos
Download or read book Predicting Type II Hot Corrosion for Marine Gas Turbines written by Christos I. Stathopoulos and published by . This book was released on 2001 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Hot-corrosion-resistant Alloys for Marine Gas Turbine Service by : Paul A. Bergman
Download or read book Development of Hot-corrosion-resistant Alloys for Marine Gas Turbine Service written by Paul A. Bergman and published by . This book was released on 1966 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: A program was initiated to develop improved hot-corrosion-resistant alloys for Naval gas turbines. Two series of nickel-base alloys and one series of cobalt-base alloys plus appropriate commercial alloys were studied for possible service as blades and vanes, respectively. Hot-corrosion testing was conducted in two simulated gas turbine burner rigs, one designed particularly for this program. Test variables of temperature, air/fuel ratio, specimen configuration, and atomization effects have been studied using combusted diesel fuel and fixed amounts of sulfur and with salt injected. Proper conditions to achieve reproducible and discriminating hot-corrosion attack have been established. Relative behavior of both experimental and commercial alloys have been determined. The effects of individual element additions appear to have been identified in certain instances; in other cases, compositions were too complex for such separation. Thus, the effects of several elements in nickel-base alloys appear clear, but longer-time testing is recommended for cobalt-alloys. Mechanical properties and microstructures of alloys designed for this program are studied and reported. (Author).
Book Synopsis An Investigation of Substrate Effects on Type Two Hot Corrosion of Marine Gas Turbine Materials by : Michael J. Shimko
Download or read book An Investigation of Substrate Effects on Type Two Hot Corrosion of Marine Gas Turbine Materials written by Michael J. Shimko and published by . This book was released on 1983 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: CoCrAlY coated Modifications of Rene 80 (a Ni base superalloy) were tested for resistance to Type Two (Low Temperature) Hot Corrosion. The effects of Ti and Hf in the substrate (normally 5.0% and 0.0% respectively) and the presence of a Pt underlayer were investigated. Certain trends were distinguishable from the data obtained. Titanium alone was found to be beneficial, Titanium in conjunction with a platinum underlayer was found to be detrimental while platinum underlayers in conjunction with low titanium concentrations in the substrate were found to be beneficial. Hafnium had a noticeable, but irregular effect only on specimens with intermediate titanium concentrations. All the above effects were found to be diffusion related. This study also made certain refinements to the NPS Hot Corrosion Test Program and direct correlation of data obtained from different runs if now justified.
Book Synopsis High-Temperature Corrosion and Materials Applications by : George Y. Lai
Download or read book High-Temperature Corrosion and Materials Applications written by George Y. Lai and published by ASM International. This book was released on 2007-01-01 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Hot Corrosion in Gas Turbines: Mechanisms; Alloy and Coating Development; Environmental Effects; Evaluation by : NATIONAL MATERIALS ADVISORY BOARD (NAS-NAE) WASHINGTON DC.
Download or read book Hot Corrosion in Gas Turbines: Mechanisms; Alloy and Coating Development; Environmental Effects; Evaluation written by NATIONAL MATERIALS ADVISORY BOARD (NAS-NAE) WASHINGTON DC. and published by . This book was released on 1970 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hot corrosion (sulfidation) in gas turbine engines has become a major problem because of the increased use of alloys low in chromium and the operation in environments containing alkali metal salts, especially near sea water. Sulfur can enter a gas turbine from the fuel, and chloride and sulfate salts from the air. There is little prospect for removal of these contaminants to such a degree as to eliminate the problem. However, from 10 to 75% of sea salt can be removed from the air intake to retard the attack. Data on tolerable levels of contaminants are needed. Engine testing is still the only reliable evaluation method to check improvements in the hot corrosion resistance of materials. Reproducibility in test results from test rigs in different laboratories is very poor, and further effort toward test rig standardization, correlation of the data between different tests, and interpolation of tests results and extension to different testing conditions, all are needed. Specific recommendations for attacking the hot corrosion problem are detailed in the report. (Author).
Book Synopsis Hot Corrosion in Gas Turbines by : John Stringer
Download or read book Hot Corrosion in Gas Turbines written by John Stringer and published by . This book was released on 1972 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discrepancies between early hot-corrosion models based on sulphidation and more recently reported data obtained by a molten salt fluxing technique are discussed. The hot corrosion role of sulphur in the absence of salt was tested by presulphidizing specimens at high and low sulphur partial pressures and then oxidizing them. Results show that certain features of the practical hot corrosion reaction are not well-modeled by the salt-fluxing model and that sulphur played a more important part than predicted. (Author).
Author :Electrochemical Society. High Temperature Materials Division Publisher :The Electrochemical Society ISBN 13 :9781566773188 Total Pages :380 pages Book Rating :4.7/5 (731 download)
Book Synopsis High Temperature Corrosion and Materials Chemistry III by : Electrochemical Society. High Temperature Materials Division
Download or read book High Temperature Corrosion and Materials Chemistry III written by Electrochemical Society. High Temperature Materials Division and published by The Electrochemical Society. This book was released on 2001 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of Surface Reaction of Impacted Chlorides on Marine Gas Turbine Hot Corrosion at Low Power Conditions by : E. R. Duffy
Download or read book Study of Surface Reaction of Impacted Chlorides on Marine Gas Turbine Hot Corrosion at Low Power Conditions written by E. R. Duffy and published by . This book was released on 1979 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of the importance of Na2SO4 and its reaction with the substrate in hot corrosion attack on superalloys, the amount of this compound formed from NaCl and sulfur oxides is extremely important in determining hot corrosion potential. The objective of this program was to determine the influence of surfaces on the kinetics of the conversion of NaCl and MgCl2 to Na2SO4 and MgSO4, respectively, in a typical combustion environment. (Author).
Book Synopsis Hot Corrosion in Gas Turbines by : R. L. Jones
Download or read book Hot Corrosion in Gas Turbines written by R. L. Jones and published by . This book was released on 1983 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review is presented which gives a brief, largely chronological overview of the development of the different theories of hot corrosion. This review was the Keynote Lecture for the Gas Turbine Session of the Symposium on Corrosion in Fossil Fuel Systems, Electrochemical Society Meeting, Detroit, MI, October 1982. (Author).
Book Synopsis Effects of Surface Chemistry on Hot Corrosion Life by :
Download or read book Effects of Surface Chemistry on Hot Corrosion Life written by and published by . This book was released on 1984 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
