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high pressure turbine blades

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270138
EISBN: 978-1-62708-301-0
...Abstract Abstract A high-pressure turbine blade in an aircraft engine failed prematurely, fracturing close to the root. Visual examination revealed significant plastic deformation on the leading edge of the blade, blocky cleavage on the trailing edge, and a region covered with fissures...
Image
Published: 01 July 2009
Fig. 10.25 Stage 1 high-pressure turbine blade and finite-element model More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270067
EISBN: 978-1-62708-301-0
... measurements. fatigue fracture fractography microstructural analysis turbine blades Summary A low-pressure turbine rotor blade failed in service, causing extensive damage to the engine. The blade failed by stress rupture followed by fatigue due to high operating temperature. Background...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060231
EISBN: 978-1-62708-343-0
... to be changed out after every mission. A high stress-concentration factor is present at point A , which accentuates the severity of the fatigue problem. Fig. 10.14 Root-attachment area of second-stage high-pressure fuel turbopump turbine blade indicating location (point A ) of persistent fatigue...
Image
Published: 01 July 2009
Fig. 10.14 Root-attachment area of second-stage high-pressure fuel turbopump turbine blade indicating location (point A ) of persistent fatigue cracking. Directionally solidified Mar-M 246 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280323
EISBN: 978-1-62708-267-9
... are exposed to extremely high temperatures in furnace and petrochemical applications, but the loads are not high. Alloys for gas turbine applications generally are exposed to the most demanding combinations of high temperature and stress. Wrought alloys have been used in the past for turbine blades and vanes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490001
EISBN: 978-1-62708-340-9
... in other countries. In any event, the fossil-fuel power plant is and will continue to be the mainstay of electric power production. The fossil fuel can be employed to make steam to drive a steam turbine, or, alternatively, the combustion gases under high pressure can be used to drive a combustion turbine...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490415
EISBN: 978-1-62708-340-9
... being extended to include vacuum brazing to fill minor thermal-fatigue and corrosion-related cracks. Turbine Blades Typical turbine blades (buckets) are shown in Fig. 9.5 and 9.6 . The blades represent the most difficult materials application in the combustion turbine, with exposure to high...
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
... are designed for high static strength, fatigue resistance, and toughness and do not experience temperatures as high as the turbine blades, which has led to widespread use of alloys such as Incoloy 901, Waspaloy, Astroloy, A-286, and Inconel 100. The desire for tight clearances throughout the engine gas path...
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 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120131
EISBN: 978-1-62708-269-3
..., cast Ti-48Al-2Cr-2Nb alloy was extensively evaluated for use in commercial gas turbine engines. Figure 14.3 shows the cast alloy in the form of low-pressure turbine (LPT) blades for high-bypass ratio, high-thrust commercial gas turbine engines. Figure 14.4 shows a rotor with cast LPT blades of Ti...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280117
EISBN: 978-1-62708-267-9
.... … … Turbine disks, compressor shaft F404 F-18 Fighter X … Vane F404 G.E. … … High-pressure turbine blade retainer, disks, forward outer seals F101 … X … Astroloy High-pressure turbine disks JTSD-17R Turbofan … X … Merl 76 Turbine disks Turbofan … X X Inconel MA-754...
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 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490265
EISBN: 978-1-62708-340-9
... the energy conversion. Because the steam’s temperature and pressure decrease and the volume increases continuously by expansion through the turbine, the length of the blades increases progressively from the inlet to the outlet end of the turbine. A typical plant may have a high-pressure (HP) turbine...
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
... turbine engine Fig. 5.6 Polycrystalline cast cobalt-base turbine guide vanes and segments Fig. 5.7 Cast turbine airfoils and other high-integrity investment-cast gas turbine components Fig. 5.8 Polycrystalline cast hollow nickel-base turbine blade of simple cooling geometry...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280011
EISBN: 978-1-62708-267-9
... for a high-pressure turbine blade in aircraft gas turbines. A problem with PC equiaxed airfoils is that the thermal-mechanical stresses are much higher than on CGDS or SCDS parts, owing to the higher modulus of PC equiaxed parts. The modulus of the CGDS and SCDS parts may be only 60% of the value...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630237
EISBN: 978-1-62708-270-9
... types of parts function in environments where high rates of fluid flow at high temperature are normal. Typical of those in gaseous environments include engine exhaust valves ( Fig. 10 ), blades and vanes in the hot sections of gas and steam turbine engines and generators ( Fig. 11 ), certain locations...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000117
EISBN: 978-1-62708-313-3
...-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, shafts, tail cones, afterburners, springs and fasteners, automotive components Good...
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 were established as the materials for airfoils in the most demanding (strength/temperature) gas turbine applications, such as the high-pressure turbine (HPT) airfoils. Directional solidification (DS) had just been demonstrated for real airfoils, and efforts began to develop DS technology...
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...