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High-pressure hydrogen testing of single crystal superalloys for advanced rocket engine turbopump turbine bladesA screening program to determine the effects of high pressure hydrogen on selected candidate materials for advanced single crystal turbine blade applications is examined. The alloys chosen for the investigation are CM SX-2, CM SX-4C, Rene N-4, and PWA1480. Testing is carried out in hydrogen and helium at 34 MPa and room temperature, with both notched and unnotched single crystal specimens. Results show a significant variation in susceptibility to Hydrogen Environment Embrittlement (HEE) among the four alloys and a marked difference in fracture topography between hydrogen and helium environment specimens.
Document ID
19850018564
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Parr, R. A. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Alter, W. S. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Johnston, M. H. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Strizak, J. P. (ORNL)
Date Acquired
August 12, 2013
Publication Date
April 1, 1985
Publication Information
Publication: Advan. High Pressure O2(H2 Technol.
Subject Category
Metallic Materials
Accession Number
85N26875
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19850018551Collected WorksAdvanced High Pressure O2/H2 Technology
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