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turbine sections

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Published: 01 December 2008
Fig. 5 Cross sections of the struts of a turbine air intake, sand cast in aluminum alloy 356. When produced to the original design, 30% of the castings were rejected because of hot tears. Redesign shown eliminated these defects More
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004158
EISBN: 978-1-62708-184-9
... Abstract The corrosion issues in the compressor, combustor and turbine sections of industrial gas turbines used in steam production generally depend on the quality of the fuel, air, and water used in the engine than on the specific industrial application. This article focuses on the forms...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004133
EISBN: 978-1-62708-184-9
...) and ultrasupercritical (USC) power plants. These components include high-pressure steam piping and headers, superheater and reheater tubing, water wall tubing in the boiler, high-and intermediate-pressure rotors, rotating blades, and bolts in the turbine section. The article reviews the boiler alloys, used in SC and USC...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005737
EISBN: 978-1-62708-171-9
... Abstract This article provides an overview of key thermal spray coatings used in compressors, combustors, and turbine sections of a power-generation gas turbine. It describes the critical components, including combustors, transition ducts, inlet nozzle guide vanes, and first-stage rotating...
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Published: 01 January 2006
Fig. 8 Cross section of a low-pressure turbine illustrating the locations where impurities can concentrate by precipitation, deposition, and by evaporation of moisture to percent concentrations, thus becoming very corrosive. Courtesy of O. Jonas, Jonas, Inc. More
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Published: 30 September 2015
Fig. 21 Section of a dual-alloy property turbine wheel produced by HIP bonding a cast IN-713C blade ring to a PM LC Astroloy hub. Courtesy of AlliedSignal Engine Division More
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Published: 01 January 2005
Fig. 4 Macrograph of the cross section of a turbine disk processed to a dual microstructure by a transient-heating method. Courtesy of Ladish Company, Inc. More
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Published: 01 January 2005
Fig. 5 Macrograph of the cross section of a dual-alloy turbine disk produced by the shear-bond process. The bore is a fine-grain P/M alloy, and the rim is a coarse cast nickel-base superalloy. Courtesy of Ladish Company, Inc. More
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Published: 01 January 2002
Fig. 14 Sectioning of turbine blades for metallographic examination. (a) Typical locations for cross sectioning of turbine blades. (b) View of Sectioned blade More
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Published: 01 January 2002
Fig. 4 Metallographic cross section through gas turbine blade. Note differences in etched structure near surfaces. Etch: electrolytic, 20% sulfuric acid in methanol. 28× More
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Published: 01 August 2018
Fig. 11 Cross-sectional computed tomography image through a turbine blade with wall thickness measurement locations and values determined with automated software More
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Published: 01 December 2004
Fig. 14 Transverse section of a turbine wheel manufactured from UNS N07718 (Inconel 718) alloy. Etched in 1:1 HCl in water with H 2 O 2 ( Table 2 , etchant 1b) but without removing the smut. White spots are indicative of low hardener concentration from unstable vacuum arc remelting. Courtesy More
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Published: 01 December 2004
Fig. 15 Transverse section of a turbine disk, stage 3, manufactured from Inconel 718 alloy. Note faint stress chevrons. Etched in 1:1 HCl in water with H 2 O 2 ( Table 2 , etchant 1b). Courtesy of F. Warmuth, Warmuth-Gordon. ∼1× More
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Published: 15 January 2021
Fig. 25 Photograph of a cross section removed from the steam turbine disk. Stress-corrosion cracking (arrows) initiated at the blade root lands of the blade attachment. More
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006824
EISBN: 978-1-62708-329-4
... investigation often requires that the observed damage be put into context, which can be done empirically through knowledge of typical deterioration rates for each component type. This is particularly the case for the hot section components of the turbine, which undergo continuous material transformations during...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006428
EISBN: 978-1-62708-192-4
... systems for turbomachinery can be accessed in Ref 7 . Summary of wear and friction issues that are typically encountered in gas turbines Table 1 Summary of wear and friction issues that are typically encountered in gas turbines Gas turbine section Components involved Potential issues...
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Published: 01 January 2002
Fig. 11 Hot corrosion attack of René 77 nickel-base alloy turbine blades. (a) Land-based, first-stage turbine blade. Notice deposit buildup, flaking, and splitting of leading edge. (b) Stationary vanes. (c) A land-based, first-stage gas turbine blade that had type 2 hot corrosion attack. (d More
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Published: 01 January 2005
Fig. 33 The crossfire tube provides the path for a spark to ignite the gas in a gas turbine. The tube is usually located away from direct heat. In this case, some misalignment occurred, and the tube was exposed directly to flame. It overheated and experienced rapid oxidation, compounded More
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