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Airfoils

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Published: 01 January 2005
Fig. 17 Three pairs of precision forged Ti-6Al-4V airfoils. Left member of each pair is as-forged; right member, as finish machined. The largest of the three pairs of airfoils measures approximately 152 mm (6 in.) wide at base and 610 mm (24 in.) long. More
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Published: 01 January 1990
Fig. 7 Progress in turbine airfoil metal temperature capability. Source: Ref 13 More
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Published: 01 January 2006
Fig. 2 Corrosion fatigue of an L-1 blade airfoil. Courtesy of O. Jonas, Jonas, Inc. More
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Published: 01 January 2005
Fig. 15 Selected simulation steps as displayed by ROLPAS for a test airfoil shape cold rolled from rectangular steel stock More
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Published: 01 January 2002
Fig. 22 Predicted temperature using oxide depth measurements at 60% airfoil height More
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Published: 01 January 2002
Fig. 23 Predicted temperature using oxide depth measurements at 90% airfoil height More
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Published: 01 December 2008
Fig. 16 Investment cast titanium engine airfoil components More
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Published: 30 September 2014
Fig. 18 High-efficiency airfoil-type impeller (Lightnin A310 Fluidflow impeller). Source: Ref 19 More
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Published: 30 September 2014
Fig. 21 Head-flow comparison curves of a marine-type propeller and airfoil-type impeller More
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Published: 01 January 2006
Fig. 32 Airfoil on which the leading edge was stretch formed to a long convex shape without lubricant in a radial-draw former More
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Published: 30 August 2021
Fig. 25 (a) Cross section of an airfoil showing a deviation in the position of the trailing-edge cooling passage as a result of casting core shift. (b) Schematic showing proper alignment More
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Published: 30 August 2021
Fig. 22 (a) Photograph of stage 1 turbine blade. Material loss was most severe at the tip and trailing-edge airfoil. (b) Photograph of second-stage turbine vane. Note the rounded discoloration patterns, material loss at the trailing edge, and airfoil perforation (arrow). (c) Optical micrograph More
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Published: 30 August 2021
Fig. 16 Liquid droplet erosion from a low-pressure steam turbine blade that failed under fatigue loading. (a) Photograph of leading-edge airfoil, suction side. The lower portion of the airfoil (left) was 400-series stainless steel alloy; the upper portion of the airfoil (right) was clad 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
.... In cases where material is released in the turbine flow path, such as a broken airfoil, downstream components typically suffer secondary damage, and so the first component to fail is typically at the upstream end of the damaged zone ( Fig. 1 ). Fig. 1 Failed gas turbine rotor. From left to right...
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Published: 01 January 2002
Fig. 20 Schematic of first-stage gas turbine blade that experienced cracking after 32,000 h in service. (a) Sectioning planes at three locations on the blade airfoil. (b) Cross-sectional view of the blade airfoil showing the cooling holes and numbering sequence More
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Published: 30 August 2021
Fig. 8 (a) Photograph of second-stage turbine blade, with crack location indicated by arrow. (b) Optical micrograph of lower-airfoil trailing-edge crack open to the internal surface of the blade airfoil. Etched with Marble’s reagent. (c) Finite-element strain map showing peak strain near crack More
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Published: 30 August 2021
Fig. 19 (a) Photograph of stage 2 blade after service. (b) Optical micrograph of upper airfoil leading-edge section showing intergranular oxidation and surrounding alloy depletion (white). Etched with Marble’s reagent. (c) Optical micrograph showing general oxidation damage of the airfoil More
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Published: 30 August 2021
Fig. 5 (a) Photograph of stage 1 turbine blade, with dashed lines indicating the original airfoil profile. (b) Stereomicroscope image of stage 1 blade leading edge near the tip showing a coarse, intergranular-like texture. (c) Optical micrograph of stage 1 blade mid-airfoil trailing edge More
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
... airfoils. Design requirements are reviewed and compared between aerospace and power generation coatings. Application process improvement areas are also discussed as a method of reducing component cost. aerospace engines combustors gas turbines high-power turbine blades high-pressure compressors...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002473
EISBN: 978-1-62708-194-8
... corrosion of superalloys and airfoil degradation due to deposits resulting from ingested particles or sand. The article concludes with a discussion on the limitations of testing techniques and life prediction. airfoil degradation ceramics corrosion resistance gas turbine engine oxidation...