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Turbine discs

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270168
EISBN: 978-1-62708-301-0
... Abstract During cyclic spin tests, the turbine disc in an aircraft engine broke apart with a loud noise, followed by a fire. Based on a detailed examination and the results of SEM fractography and hardness measurements, failure analysts concluded that a locking plate became dislodged due...
Image
Published: 01 October 2005
Fig. CH44.8 Damaged low-pressure turbine disc. Arrow indicates the locking plates region that suffered practically no damage. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000009
EISBN: 978-1-62708-313-3
... and ductility and are used mostly in applications where these properties are required, such as turbine discs or forged rotors. Consequently, nickel-iron alloys are used only in the wrought condition ( Ref 1 ), because this manufacturing method offers a wide variety of mechanisms for controlling grain size...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270191
EISBN: 978-1-62708-301-0
... due to heavy rubbing between the 18th-stage stator and the 19th-stage rotor blades and disc during the early stages of starting and final stages of stopping. This led to the subsequent damages to the turbine before final damage. The failure was attributed to inadequate clearances in the 18th–19th...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000117
EISBN: 978-1-62708-313-3
... resistance M-252 GTE blades, parts, sheets … Nimonic 105 GTE blades, discs, shafts Relatively high Al contents enhance strength (PH) and oxidation resistance. Creep-rupture properties up to 950 °C (1740 °F) Nimonic 115 Turbine blades in aircraft GTEs Similar to Nimonic 105, higher Al+Ti levels...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.9781627083010
EISBN: 978-1-62708-301-0
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.t51180029
EISBN: 978-1-62708-256-3
... Shuttle main engine Assembly of these turbopumps is a very well-designed and controlled engineering feat, but errors can occur. The high-pressure fuel turbopump has two turbine discs that are assembled back to back with fasteners. It is a critical assembly and the design engineers decided...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270182
EISBN: 978-1-62708-301-0
... Abstract A turbine in a fertilizer plant began to vibrate and was shut down to investigate the problem. A first stage rotor blade was found fractured and was removed along with several other blades for further examination. Based on their observations and testing, investigators concluded...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040069
EISBN: 978-1-62708-428-4
... Bentonite abradable coatings are primarily used within the higher operating temperature regions of a gas turbine (up to 815 °C. or 1500 °F). Therefore, this coating is most commonly found on steel and/or titanium components within the compressor section of an engine. For processing abradable coatings...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120139
EISBN: 978-1-62708-269-3
... qualification costs exceeded the technical benefit. Ti-6Al-2.75Sn-4Zr-0.4Mo-0.45Si, UNS: none, TiMetal 1100 and Ti-1100 Ti-1100 was developed for high temperature use up to 600 °C (1100 °F). High-pressure compressor discs, low-pressure turbine blades, automotive valves Ti-2.5Cu, UNS: none, IMI 230 IMI...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040076
EISBN: 978-1-62708-428-4
... a round robin approach to assess metallographic sample preparation by a variety of laboratories. This document summarizes the results of the committee’s work. Figure 1 Cutaway view of an AE 3007 engine. Molybdenum coatings are used for a range of applications in the “cold” sections of a gas turbine...
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
... 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 of a superalloy...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850001
EISBN: 978-1-62708-260-0
... by Etching All quality evaluations should begin on the macroscale using tests designed to survey the overall field in a simple and reliable manner. After the macrostructure of a material has been evaluated, specific features can then be examined microscopically. Abnormalities observed on the etch disc...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.9781627084284
EISBN: 978-1-62708-428-4
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320305
EISBN: 978-1-62708-332-4
... drums and large disc brake rotors for railroad and pig molds are popular applications. The application of CGI to ingot molds requires a careful cost–benefit analysis compared with the conventional high-carbon grades referred to in Chapter 4 , “ Influence of Microstructure on Mechanical Properties...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280287
EISBN: 978-1-62708-267-9
... is either Cr 2 O 3 or Al 2 O 3 , depending on the chemistry of the alloy. (Refer to Fig. 13.1 and see also “ Gas Turbine Materials ” in the section “ Degradation by Gaseous Oxidation or Mixed Gases .”) Fig. 13.1 Schematic diagram illustrating oxide scale development on nickel-chromium-aluminum...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120005
EISBN: 978-1-62708-269-3
...-strength “unalloyed” titanium mill products fabricated into tanks, heat exchangers, or reactor vessels for chemical-processing, desalination, or power-generation plants. In contrast, high-performance applications such as gas turbines, aircraft structures, drilling equipment, and submersibles, or even...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040247
EISBN: 978-1-62708-300-3
.... , “ Modeling Grain Size Evolution of P/M Rene 88DT Forgings ,” Advanced Technology for Superalloy Affordability , Chang K.M. et al. , Ed., The Minerals Metals and Materials Society . [Stewart, 1988] Stewart D. , “ ISOCON Manufacturing of Waspaloy Turbine Discs ,” Superalloys...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.9781627083324
EISBN: 978-1-62708-332-4
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320103
EISBN: 978-1-62708-332-4
.... Gray iron’s heat conduction and heat- and wear-resistance properties make it uniquely suitable for automotive engine cylinder blocks, cylinder liners, disc brake rotors and brake drums, air compressor cylinder blocks, and paper-making drying cylinders. Special properties such as corrosion resistance...