NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Reduced gravity favors columnar crystal growthIn zero gravity, alined columnar microstructures form at expense of equiaxed growth. Preferential crystal growth occurs in solidification chamber consisting of semicylindrical copper chill block brazed to stainless steel top plate. Method is best utilized in castings where directional dependence of physical properties is beneficial, as in turbine blades.
Document ID
19800000366
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Kattamis, T. Z.
(Grumman Aeospace Corp.)
Papazian, J. M.
(Grumman Aeospace Corp.)
Date Acquired
August 10, 2013
Publication Date
January 1, 1981
Publication Information
Publication: NASA Tech Briefs
Volume: 5
Issue: 3
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
MFS-25205
Accession Number
80B10366
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

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