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turbine rotor blade

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270067
EISBN: 978-1-62708-301-0
... Abstract A low-pressure turbine rotor blade failed in service, causing extensive engine damage. A section of the blade broke off around 25 mm from the root platform, producing a flat fracture surface that appeared smooth on one end and grainy elsewhere. Based on their examination, investigators...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270143
EISBN: 978-1-62708-301-0
... Abstract A low-pressure turbine rotor blade failed during a test run, causing extensive damage to an aircraft engine. Visual examination showed that the nickel-base superalloy blade broke above the root platform in the airfoil section, leaving a fracture surface with two distinct regions, one...
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 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490265
EISBN: 978-1-62708-340-9
... in casings (or shells) which are usually made in two half-sections bolted together. The key components of a steam turbine therefore are the rotor, blades, vanes, casing, and bolting. Fig. 6.1. Modern 600-MW steam turbine with reheat (courtesy of C. Verpoort, ASEA - Brown Boveri Corp., Baden...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270191
EISBN: 978-1-62708-301-0
... following the failure of the turbine rotor. The damage was maximum in the 18th/19th-stage seal land region of the compressor, with the 19th-stage blades sheared off. Metallurgical investigations were carried out on the roots and airfoil sections of the damaged blades. The blade roots had suffered excessive...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490001
EISBN: 978-1-62708-340-9
... Research Institute , Palo Alto, CA , 1987 2. Schwant R.C. and Timo D.P. , Life Assessment of General Electric Large Steam Turbine Rotors , in Life Assessment and Improvement of Turbine-Generator Rotors , Viswanathan R. , Ed., Pergamon Press , New York , 1985 , p 3.23 – 3.45...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270087
EISBN: 978-1-62708-301-0
.... The following components were available for investigation: A leftover portion of the failed blade A blade adjoining the one that failed (in the assembly, these two blades are placed together in one slot) Blades positioned in the turbine rotor, diametrically opposite the failed blade A new, unused...
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 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120131
EISBN: 978-1-62708-269-3
... engines. Figure 14.4 shows a rotor with cast LPT blades of Ti-48Al-2Cr-2Nb that were tested uncoated at 700 °C (1292 °F) in a General Electric simulation engine. Fig. 14.3 Cast low-pressure turbine gamma aluminide blades for General Electric gas turbine engines. (a) Crude shape for CFC-80C. (b...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490383
EISBN: 978-1-62708-340-9
... or advanced material free from temper embrittlement (forging) HP Rotors Blades for HP/IP Rotors LP Rotors Turbine Stationary Components The superheater tubes in the boiler are likely to undergo the most severe service conditions and must meet stringent requirements with respect to fire...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000117
EISBN: 978-1-62708-313-3
... and comments to selected superalloys in Table A.3A Alloy Application Comments 19-9DL Turbine and super-charger wheels, industrial gas turbine blades, casings, afterburner components Low cost. High strength, corrosion, and oxidation resistance up to 677 °C (1250 °F) A-286 GTE blades, vanes...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280079
EISBN: 978-1-62708-267-9
... shown with cross sections of some other cooling configurations Cutaway view of PC cast complex nickel-base turbine blade Typical large structural casting Investment-cast polycrystalline integral nozzles and integral rotors for a gas turbine engine Fig. 5.6 Polycrystalline cast cobalt...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280339
EISBN: 978-1-62708-267-9
... 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) burner cans and combustors, (c) turbine vanes, and (d) turbine blades Fig. 15.2...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000009
EISBN: 978-1-62708-313-3
... Coatings , Koul A.K. , Ed., National Research Council of Canada , Ottawa , 1994 , p 34 – 53 Nickel-iron-base superalloys are characterized by their high toughness and ductility and are used mostly in applications where these properties are required, such as turbine discs or forged rotors...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120005
EISBN: 978-1-62708-269-3
...-engine blades and gas turbine parts require titanium alloys that maximize strength efficiency and metallurgical stability at elevated temperatures. These alloys also must exhibit low creep rates along with predictable behavior with respect to stress rupture and low-cycle fatigue. To reproducibly provide...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490111
EISBN: 978-1-62708-340-9
.... Vibrational stresses on turbine blades, alternating bending loads on blades and shafts, and fluctuating thermal stresses during start-stop cycles and due to power changes are some examples of cyclic loading that can occur in a plant. For convenience, two types of fatigue are distinguished: high-cycle fatigue...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030117
EISBN: 978-1-62708-282-2
... and helicopter rotor blades. In turbines, condensation of steam produces droplets that are carried into the rotor blades, with consequent surface damage. Raindrop erosion on helicopter blades is the result of elastic compression waves produced by multiple impacts and their interaction; this action generates...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630237
EISBN: 978-1-62708-270-9
... (~0.3 to 0.5 T M ). Factors such as time-temperature exposure, geometry, and grain structure affect creep behavior. Creep rate will actually decrease with increased grain size. Some components such as turbine blades are processed to form a single-grain (crystal) structure, which has good creep...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280365
EISBN: 978-1-62708-267-9
... ( No. 7 ), 1986 , p 733 – 740 10.1179/mst.1986.2.7.733 • Wright D.C. and Smith D.J. , Forging of Blades for Gas Turbines , Mater. Sci. Technol. , Vol 2 ( No. 7 ), 1986 , p 742 – 747 10.1179/mst.1986.2.7.742 • Bartos J.L. , Review of Superalloy Powder Metallurgy...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490021
EISBN: 978-1-62708-340-9
..., blades, HP-IP rotors, and combustion turbine disks. For other components operating at lower temperatures, embrittlement from the heat treatment cycle can play a role. LP rotors of steam turbines, generator rotors, and retaining rings provide some examples of this. Manifestations and Relevance of Temper...