Process for forming metal compositions containing cellular in si

Details Process for forming metal compositions containing cellular in si Process for forming metal compositions containing cellular in si

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.

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