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Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001354
EISBN: 978-1-62708-215-0
...) 784 (113.7) 805 (116.8) 720 (105) min Yield strength, MPa (ksi) 658 (95.4) 682 (98.9) 590 (85) min Elongation, % 22.8 19.7 17 Reduction of area, % 72.0 68.4 45 Fig. 4 Micrograph showing the bainitic microstructure of the turbine disk. Picral etch. 315× Fig. 5...
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Published: 01 December 1992
Fig. 1 Two views of the main shaft with the turbine disk. (a) Overall view. (b) Closeup view showing the lateral shift of the disk from its original position. More
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Published: 01 December 1993
Fig. 1 Multiple cracks on the inlet and outlet sides of the sectioned turbine disk More
Image
Published: 01 December 1993
Fig. 4 Micrograph showing the bainitic microstructure of the turbine disk. Picral etch. 315× More
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001080
EISBN: 978-1-62708-214-3
... Fig. 1 Two views of the main shaft with the turbine disk. (a) Overall view. (b) Closeup view showing the lateral shift of the disk from its original position. Fig. 2 Locking nut with the two pins intact. Fig. 3 Details of disk locking arrangement. Fig. 4 Schematic...
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Published: 01 December 1992
Fig. 4 Schematic diagram showing the directions of rotation of the nut and the turbine disk. More
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001081
EISBN: 978-1-62708-214-3
... aircraft gas turbine engines cracked prematurely in the bolt hole regions. The disks were made of precipitation-hardened AM355 martensitic stainless steel. Experimental and analytical work was performed on specimens from the fifth-stage compressor disk (judged to be the most crack-prone disk...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001756
EISBN: 978-1-62708-241-9
... duplex atomizers. Schematic layout of the engine is shown in Fig. 1 . The HP compressor comprises machined disks welded together to form a drum into which rotor blades are keyed and locked in position by blade retaining plates. The HP compressor drum is bolted to the HP turbine rotor shaft...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0090030
EISBN: 978-1-62708-217-4
... Gas turbine engines Microcracking Phase transformations Rotors Titanium Fatigue fracture Brittle fracture In 1989, a United Airlines DC-10 in transit from Denver to Chicago experienced failure of the center engine. The titanium compressor disk burst and severed the hydraulics of the plane...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006796
EISBN: 978-1-62708-295-2
... such as rain erosion of solid materials, gas turbine blades, wind turbine blades, airplane components, and pipe-wall thinning in nuclear/fossil power plants. Because of the fundamental interest in the mechanics of fluids and solids, this topic has been reviewed by Heymann ( Ref 1 ) and Richman ( Ref 2...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
...-corrosion crack in a steam turbine rotor disk. SCC, stress-corrosion cracking Macroscopic Characteristics of Stress-Corrosion Cracking As discussed previously, one of the characteristics of SCC is the development of brittle cracks in a normally ductile material. Given the brittle nature of SCC...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001827
EISBN: 978-1-62708-241-9
... Fig. 1 Schematic of the gas turbine [ 13 ] Fig. 2 Regimes of high-temperature attack; temperatures are approximate [ 1 ] Fig. 3 Macrograph showing the bucket from the first stage in as-received condition Fig. 4 Macrograph showing the hot corrosion cavities found...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003517
EISBN: 978-1-62708-180-1
... alloys are used for the relatively cool components, such as those in the fan and low-pressure compressor sections. Nickel-base, iron-nickel, and iron-base heat-resisting alloys are used for “warm” parts, such as shafts, turbine disks, high-pressure compressor disks, and cases. Nickel-base and cobalt-base...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003546
EISBN: 978-1-62708-180-1
... and not exhaustive; they provide a way in which to view the TMF process and a methodology for developing engineering models. Stable Precipitate Structure and Plasticity/ Oxidation In certain applications, such as disks and turbine blades in jet engines, the temperatures and stresses...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001533
EISBN: 978-1-62708-225-9
... Steam turbines Wear tests Sn-13.5Sb-6.0Cu Sn-11.9Sb-4.5Cu Babbit (Other, miscellaneous, or unspecified) wear 1. Introduction The reliable operation of sliding bearings determines to a considerable extent the life and reliable operation of the steam turbine as a whole. 1 , 2 The cases...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003569
EISBN: 978-1-62708-180-1
... with a discussion on correlations between laboratory results and service. bearings brittle materials cavitation erosion cavitation resistance cavitation test centrifugal pumps ductile materials gearbox CAVITATION EROSION is a type of wear in hydraulic turbines, on pump impellers, on ship...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006781
EISBN: 978-1-62708-295-2
... in the literature are reviewed. The relationships reviewed are delineated by the damage mechanisms causing failure. TMF Life Model with Stable Precipitate Structure and Plasticity/Oxidation—Part A In certain applications, such as disks and turbine blades in jet engines, the temperatures and stresses...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001578
EISBN: 978-1-62708-233-4
... Pumps Turbines Metal (Other, miscellaneous, or unspecified) failure (Other, general, or unspecified) fracture Cavitation wear Part I—Special Cases Case #1: Vibration in Hydroelectric Dam The entire structure of a hydroelectric dam would begin to vibrate whenever a hydroelectric turbine...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003512
EISBN: 978-1-62708-180-1
... of these criteria can constitute failure. For example, a steam turbine blade whose tip has eroded affects turbine efficiency and hence affects the economics of operation adversely. The blade should therefore be replaced even though it can continue to operate. Component failures are thus defined in terms...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003514
EISBN: 978-1-62708-180-1
... of fracture (PROF) computer code to quantify the probability of failure of aircraft structures with consideration of inspection, structural replacement, and repair ( Ref 24 ). The commercial aircraft gas turbine engine industry is adopting a probabilistically-based damage tolerance analysis method...