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Factors Affecting Liquid-Metal Embrittlement in C-103Results of a study of weld cracks on Space Shuttle control thrustors point toward better understanding of cracking problem in columbium metal, which has also plagued nonaerospace users. Although liquid-metal embrittlement is known to be cause of problem, factors affecting growth and severity of cracks are not well understood. New results tie crack growth to type of contaminants present, grain size and level of stress present while welding is done.
Document ID
19810000170
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Mclemore, R.
(The Marquardt Co.)
Lampson, F. K.
(The Marquardt Co.)
Date Acquired
August 11, 2013
Publication Date
November 1, 1982
Publication Information
Publication: NASA Tech Briefs
Volume: 6
Issue: 2
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
MSC-18865
Accession Number
81B10170
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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