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Gas turbine engines

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870123
EISBN: 978-1-62708-344-7
..., neither of which are related to a physical crack initiation event, are subsequently presented along with several applications showing how the different methods compare. The examples provided include two-level and multilevel tests, a gas-turbine engine compressor disk, and the cumulative damage associated...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000001
EISBN: 978-1-62708-313-3
... of a superalloy is its combination of relatively high mechanical strength and surface stability at high operating temperatures. This chapter provides a brief history of the development of superalloys and discusses their use in the gas turbine engines. superalloys THERE IS NO STRICT DEFINITION...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080005
EISBN: 978-1-62708-304-1
... in gas turbines, are subject to oxidation. This chapter explains how oxidation affects a wide range of engineering alloys from carbon and Cr-Mo steels to superalloys. It discusses the kinetics and thermodynamics involved in the formation of oxides and the effect of surface and bulk chemistry. It provides...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460277
EISBN: 978-1-62708-285-3
...Abstract Abstract This chapter focuses on high-pressure cold spray applications pertaining to repair and refurbishment in the aerospace, oil and gas, and power-generation industries, the last specifically involving repair of gas turbine components. Advantages of cold spray coating in the repair...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120131
EISBN: 978-1-62708-269-3
... turbine engines. (a) Crude shape for CFC-80C. (b) Cast-to-size blade for GE90 Fig. 14.4 Low-pressure turbine rotor with cast gamma aluminide alloy blades after rigorous test in General Electric gas turbine Fig. 14.5 Investment cast, hot isostatically pressed, and heat treated...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280079
EISBN: 978-1-62708-267-9
... for superalloys has been thriving for 60 years, since the cobalt alloys were adapted to the gas turbine engine. In the latter half of the past century, investment casting became the only way to produce required parts from modern high-strength nickel-base superalloys that operate in the gas paths of turbines...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120005
EISBN: 978-1-62708-269-3
... alloys such as Ti-6Al-4V, Ti-6Al-2Sn-4Zr-2Mo+Si, Ti-10V-2Fe-3Al, and Ti-6V-2Sn-2Zr-2Cr-2Mo+Si are used or planned for use in aircraft or in gas turbine engines for aerospace applications. Fig. 2.4 A few typical areas of application for high-performance titanium parts. (a) Offshore drilling rig...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280011
EISBN: 978-1-62708-267-9
... turbines when titanium alloys might be inappropriate. Cast alloys are used across the temperature range but particularly at the highest temperatures, especially as in gas turbine engines. Superalloys usually are processed to optimize one property in preference to others. The same composition, if used...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280365
EISBN: 978-1-62708-267-9
...: Superalloy 718 —Metallurgy and Applications , American Institute of Mining, Metallurgical and Petroleum Engineers, 1989 ) • The proceedings of a continuing series of conferences in Europe, first held in 1978 and at four year intervals thereafter, with emphasis on gas turbines, power engineering...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060231
EISBN: 978-1-62708-343-0
... Comparison of fatigue regimes encountered in the Space Shuttle Main Engines (SSMEs) and that encountered in aeronautical gas turbine engines Abstract Abstract This chapter explains how the authors assessed the potential risks of creep-fatigue in several aerospace applications using the tools...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080249
EISBN: 978-1-62708-304-1
... Procedures and Performance, Vol 7 ( No. 4 ), Nov 1989 10.1080/02619180.1989.11753433 17. Bergman P.A. , Beltran A.M. , and Sims C.T. , Development of Hot Corrosion-Resistant Alloys for Marine Gas Turbine Service, Final Summary Report to Marine Engineering Lab. , Contract N600...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280287
EISBN: 978-1-62708-267-9
... rate (A) vs. actual (B) test rig and engine hot corrosion rates for a nickel-base superalloy turbine airfoil Fig. 13.16 Schematic illustration of the temperature and gas compositions over which hot corrosion propagation is important. Note the high rate shown at low temperatures by the gas...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280091
EISBN: 978-1-62708-267-9
... engine, there came a demand for alloys not only with superior high-temperature strength but also with the capability of being fabricated to unique shapes. In the early days, superalloys, based on the cast cobalt dental alloy Vitallium, became the materials of choice for gas turbine engine airfoils. Some...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280001
EISBN: 978-1-62708-267-9
... levels, and superalloys that can operate at these temperatures are the major components of the hot sections of such engines. Fig. 1.2 F119 gas turbine engine—a major user of superalloys The significance of superalloys in today’s commerce is typified by the fact that, whereas in 1950 only...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000009
EISBN: 978-1-62708-313-3
... at 912 °C (1674 °F). In superalloys, both iron and cobalt are stabilized by the addition of nickel to retain an fcc crystal structure throughout the gas turbine engine (GTE) application temperature range. 2.1 Nickel-Iron-Base Alloys 2.2 Cobalt-Base Superalloys 2.3 Nickel-Base Superalloys...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280117
EISBN: 978-1-62708-267-9
... are flying in a variety of military and commercial engines. Currently, most aircraft gas turbine P/M disks are produced via extrusion and isothermal forging. When used, a typical aircraft engine may require anywhere from 1500 to 4500 lb (680 to 2040 kg) of nickel-base superalloy powder isothermal forgings...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480353
EISBN: 978-1-62708-318-8
... Gas Turbine Engines Competitive Comparison Airframes, Missiles, and Space Vehicles Fasteners and Springs Corrosion Resistance Hostile Environments Mechanical and Physical Properties Physical Properties Chlorine Chemicals and Solutions Chlorine Gas Halogen and Halide...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.9781627082679
EISBN: 978-1-62708-267-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280339
EISBN: 978-1-62708-267-9
... to the 1960s, major advances occurred. The need for high-strength, high-temperature-resistant superalloys soared with the introduction of the gas turbine engine for aircraft applications. Iron-nickel-base superalloys were developed further as wrought materials, new cobalt-base superalloys were invented...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030025
EISBN: 978-1-62708-282-2
... path components of gas turbine engines. Two forms of hot corrosion can be distinguished; most of the corrosion encountered in turbines burning liquid fuels can be described as type I hot corrosion, which occurs primarily in the metal temperature range of 850 to 950 °C (1550 to 1750 °F...