NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Grain size control of rhenium stripEnsuring the desired grain size in the pure Re strip employed by the SP-100 space nuclear reactor design entails the establishment of an initial grain size in the as-received strip and the avoidance of excessive grain growth during subsequent fabrication. Pure Re tapered tensile specimens have been fabricated and tested in order to quantify the effects of grain-boundary migration. Grain size could be rendered fine and uniform by means of a rolling procedure that uses rather large reductions between short intermediate anneals. The critical strain regime varies inversely with annealing temperature.
Document ID
19930029805
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Schuster, Gary B.
(General Electric Co., Astro-Space Div., San Jose CA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Publication Information
Publication: In: Space nuclear power systems; Proceedings of the 8th Symposium, Albuquerque, NM, Jan. 6-10, 1991. Pt. 1 (A93-13751 03-20)
Publisher: American Institute of Physics
Subject Category
Metallic Materials
Accession Number
93A13802
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available