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turbine disk cooling passages

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280079
EISBN: 978-1-62708-267-9
... ceramic shell molds. Modern gas turbine applications require complex cooling passages in what were once solid airfoil shapes. Hollow castings with complex internal features are made by first creating a ceramic positive replica of the internal hollow passage through injection of a ceramic slurry...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280117
EISBN: 978-1-62708-267-9
... superalloy Component Engine Aircraft/manufacturer Reason for using P/M technology Cost reduction Improved properties IN-100 Turbine disks, seals, spacers F100 Pratt & Whitney X X Rene 95 Turbine disks, cooling plate T700 Helicopter/G.E. … … Turbine disks, compressor shaft...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060231
EISBN: 978-1-62708-343-0
.... It then describes the types of damage observed in engine components and the methods used to mitigate problems. It also discusses the results of analyses that led to changes in design or approach and examines fatigue-related issues in turbine engines used in commercial aircraft. aeronautical gas turbine...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280339
EISBN: 978-1-62708-267-9
... by application, a realistic method of evaluating alloy capability. Fig. 15.2 , however, groups all superalloys considered into a single chart. Fig. 15.1 Temperature-strength capability of selected superalloys as a function of year of availability (about 1945–1970). (a) Compressor and turbine disks, (b...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280323
EISBN: 978-1-62708-267-9
... applications generally do not exceed about 1400 °F (760 °C) for gas turbine disks but may be higher for less heavily loaded sheet alloy applications. In applications where the component does not bear a significant load, allowable temperatures may exceed 2200 °F (1204 °C), assuming that incipient melting...
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.t61280211
EISBN: 978-1-62708-267-9
...″ above about 1250 °F (675 °C), it will be noted that IN-718 normally never is tested above that temperature. A fairly standard test temperature for virtually all types of elevated-temperature tests on IN-718 (and many other turbine disk alloys) is 1200 °F (649 °C). Grain-Boundary Carbides in Nickel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490415
EISBN: 978-1-62708-340-9
... of the turbine. Accurate life-assessment techniques can help avoid such occurrences. Components which operate in the creep regime include combustor baskets (liners), transition pieces, turbine nozzles (vanes), blades (buckets), and turbine disks (wheels). These are the components in the hot-gas path...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060315
EISBN: 978-1-62708-261-7
... turbines : disks, combustion chambers, bolts, casings, shafts, exhaust systems, cases, blades, vanes, burner cans, afterburners, thrust reversers Steam turbine power plants : bolts, blades, stack gas reheaters Reciprocating engines : turbochargers, exhaust valves, hot plugs, valve seat inserts...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280149
EISBN: 978-1-62708-267-9
... alloys Prevent or minimize joint cracking Keep the join line thin and positioned in the lowest-stressed location of the welded assembly Joining of superalloys may range from the joining of disks to the bonding of paired turbine vanes, from the development of a case structure by buildup from...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350043
EISBN: 978-1-62708-315-7
.... The energy lost to friction is an energy input that must continually be provided in order to maintain the sliding motion. This energy is dissipated in the system, primarily as heat—which may have to be removed by cooling to avoid damage and may limit the conditions under which the machinery can be operated...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.9781627083409
EISBN: 978-1-62708-340-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420339
EISBN: 978-1-62708-310-2
... enough temperature to take a significant amount of an alloying element into solid solution. Rapidly cooled (quenched) to room temperature, trapping the alloying elements in solution. Reheated to an intermediate temperature so that the host metal rejects the alloying element in the form of fine...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740325
EISBN: 978-1-62708-308-9
... of a turbine blade for a high-performance jet engine, the bulk of the material must have sufficient creep resistance and fatigue strength at the service temperature to provide an acceptably safe service life. On the other hand, the surface must possess sufficient resistance to oxidation and hot corrosion...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000059
EISBN: 978-1-62708-313-3
... toughness, low-temperature applications Disks, turbine casings Co Highest incipient melting point (unalloyed metal) High corrosion resistance No strengthening precipitate comparable to γ′ or γ″ Requires fcc stabilizer Cobalt prices have been known to be volatile in the past...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740047
EISBN: 978-1-62708-308-9
..., brakes, steering and suspension components, etc.), prosthetics, and gas turbine engine hardware. The steps in making a casting are diagrammed in Fig. 1 . Before a casting can be made, a mold must be made. The mold is usually made of a material with a higher melting point than that of the alloy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230295
EISBN: 978-1-62708-298-3
... (a) Indicates maximum content; minimum contents are given for remainder of elements. (b) Indicates other metal impurities. Source: Marder 1998a Powders are formed by ball milling, disk grinding, or impact grinding the chips or by an inert gas atomizing process (gas-pressure spray). Depending...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060085
EISBN: 978-1-62708-261-7
... metals give up their latent heat of fusion and solidify at a single temperature. If a pure metal is melted and allowed to solidify in the melting crucible, a thermocouple placed in the metal during solidification could trace a cooling curve like that shown in Fig. 5.1 . During the early stages...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740213
EISBN: 978-1-62708-308-9
... in metal removal operations include: Grinding burns on high-strength steel Untempered martensite in drilled holes in steel components Grinding cracks in the root sections of cast nickel-base gas turbine buckets Lower fatigue strength of parts processed by electrical discharge machining...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.9781627083232
EISBN: 978-1-62708-323-2