Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1978-07-12
1980-06-03
Dean, R.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75171, C22C 102
Patent
active
042059836
ABSTRACT:
A process for forming metal compositions containing cellular in situ composites. A metal composition containing at least 25 volume percent liquid is cooled to produce aligned columnar dendrite growth. The resultant composition then is subjected to isothermal coarsening in the semi-solid temperature range to form the cellular in situ composites. This composition then is solidified. The metal compositions are particularly useful in rotating machinery.
REFERENCES:
patent: 3915761 (1975-10-01), Tschinkel et al.
Jackson et al., Conference on In Situ Composites, Aug. 1976, pp. 365-375, Xerox Individualized Publishing, Lexington, Massachusetts.
Dunn Edmund M.
Flemings Merton C.
Young Kenneth P.
Cook Paul J.
Dean R.
Massachusetts Institute of Technology
Smith, Jr. Arthur A.
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