Analytical Study of Flow Reduction Due to Oxidation of Wire-form Porous Sheet for Transpiration Cooled Turbine Blades PDF Download
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Author: Albert Kaufman
Publisher:
ISBN:
Category : Gas-turbines
Languages : en
Pages : 28
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Author: Albert Kaufman
Publisher:
ISBN:
Category : Gas-turbines
Languages : en
Pages : 28
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Author: Albert Kaufman
Publisher:
ISBN:
Category : Alloys
Languages : en
Pages : 0
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Author:
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ISBN:
Category : Government publications
Languages : en
Pages :
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 642
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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author:
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ISBN:
Category :
Languages : en
Pages : 920
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Author: United States. Superintendent of Documents
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ISBN:
Category : United States
Languages : en
Pages : 1348
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Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1320
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Author: Albert Kaufman
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ISBN:
Category : Transpiration (Physics)
Languages : en
Pages : 36
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Results of recent research to develop techniques for analyzing coolant flow in transpiration-cooled vanes are summarized. Flow characteristics of the wire-form porous material are correlated; the effects on the flow characteristics of oxidation, coolant temperature, gas crossflow, and airfoil curvature are evaluated. An analytical method is presented for predicting coolant flows and pressures in a strut-supported vane.
Author: P. Madsen
Publisher:
ISBN:
Category : Heat resistant alloys
Languages : en
Pages : 110
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Porous metal sheet with controlled permeability was made by space winding and diffusion bonding fine wire. Two iron-chromium-aluminum alloys and three-chromium alloys were used: GE 1541 (Fe-Cr-Al-Y), H 875 (Fe-Cr-Al-Si), TD Ni Cr, DH 245 (Ni-Cr-Al-Si) and DH 242 (Ni-Cr-Si-Cb). GE 1541 and H 875 were shown in initial tests to have greater oxidation resistance than the other candidate alloys and were therefore tested more extensively. These two materials were cyclic furnace oxidation tested in air at 1800 and 2000 F for accumulated exposure times of 4, 16, 64, 100, 200, 300, 400, 500, and and 600 hours. Oxidation weight gain, permeability change and mechanical properties were determined after exposure. Metallographic examination was performed to determine effects of exposure on the porous metal and electron beam weld joints of porous sheet to IN 100 strut material. Hundred hour stress rupture life and tensile tests were performed at 1800 F. Both alloys had excellent oxidation resistance and retention of mechanical properties and appear suitable for use as transpiration cooling materials in high temperature gas turbine engines.
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Category :
Languages : en
Pages : 28
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