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Turbine disks

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Published: 01 March 2002
Fig. 7.7 As-HIP Rene 95 turbine disks. As-HIP shape (upper left), sonic shape (upper right), finished machined disks (bottom) More
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Published: 01 October 2011
Fig. 13.6 Powder metallurgy nickel superalloy turbine disk component. Courtesy of Rolls-Royce Corporation More
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Published: 01 October 2005
Fig. 2.1 Turbine disk with the main shaft. (a) Overall view. (b) View showing the lateral shift of the disk from its original position. Source: Ref 3 More
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Published: 01 October 2005
Fig. 2.4 Diagram showing the directions of rotation of the turbine disk and the locking nut. Source: Ref 3 More
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Published: 01 August 2005
Fig. 2.97 Photomicrograph of SCC in a sample coming from a steam turbine disk made of A470 class 4 alloy steel forging. Note that the two immediately adjacent cracks exhibit opposite types of fracture: transgranular for the upper crack, intergranular for the lower crack. Source: Ref 2.71 More
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Published: 01 August 2005
Fig. 2.99 Intergranular cracks in a gas turbine disk made of 2014-6 aluminum. Note crack initiation at a corrosion pit (or pits) and branching along grain boundaries, typical of stress-corrosion failure. Source: Ref 2.73 More
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Published: 01 March 2006
Fig. 11.26 Cracks started at locking-pin hole in turbine disk. Source: Ref 11.32 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280117
EISBN: 978-1-62708-267-9
... Abstract Gas turbine disks made from nickel-base superalloys are often produced using powder metallurgy (P/M) techniques because the alloy compositions normally used are difficult or impractical to forge by conventional methods. This chapter discusses the P/M process and its application...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280011
EISBN: 978-1-62708-267-9
... large data tables along with reference information and a detailed application example based on the design of a gas turbine disk. high-temperature applications material selection mechanical properties superalloys Overview General Considerations Selection implies data. Appendix...
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
... discusses the forgeability of alloys, addresses problems and practical issues, and describes the forging of gas turbine disks. On the topic of forming, the chapter discusses the processes involved, the role of alloying elements, and the effect of alloy condition on formability. It addresses practical...
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Published: 01 March 2002
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) burner cans and combustors, (c) turbine vanes, and (d) turbine blades More
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...
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Published: 01 December 1989
Fig. 3.31. Monkman-Grant-type correlation between time to failure and creep-crack-growth rate for gas-turbine disk alloys ( Ref 8 ). More
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Published: 01 March 2006
Fig. 11.54 Dramatic effect of low plasticity burnishing (LPB) on fatigue crack growth in a nickel-base turbine disk alloy. Source: Ref 11.67 More
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Published: 01 March 2002
Fig. 6.5 Schematic illustration of strain introduced in regions of a forging during the steps required for production of a simple aircraft gas turbine disk. (a) The increment to be forged, overlaid with grid lines, (b) after upset to a “pancake,” and (c) final forged shape More
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Published: 01 December 2015
Fig. 6 Stress-corrosion crack initiating from a corrosion pit in a quenched-and-tempered high-strength turbine disk steel (3.39Ni-1.56Cr-0.63Mo-0.11V) test coupon exposed to oxygenated, demineralized water for 800 h under a bending stress of 90% of the yield stress. (a) 185×. (b) 248 More
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Published: 01 January 2017
Fig. 1.7 Stress-corrosion crack initiating from a corrosion pit in a quenched-and-tempered high-strength turbine disk steel (3.39Ni-1.56Cr-0.63Mo-0.11V) test coupon exposed to oxygenated, demineralized water for 800 h under a bending stress of 90% of the yield stress. (a) Original More
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Published: 01 March 2002
Fig. 6.25 Machined flat disk for aircraft gas turbine More
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Published: 01 March 2002
Fig. 7.1 Possible processing sequences for a gas turbine compressor disk illustrating the input weight reductions possible with P/M superalloy technology More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270005
EISBN: 978-1-62708-301-0
... down. The nut that locked the two-stage turbine disk in place had worked its way out from the threads and the disk had shifted about 2.5 mm and come off the shaft. The design of the locking mechanism was responsible for the loosening of the nut ( Ref 3 ). Figure 2.1 shows the two-stage turbine...