Dispersion strengthened single crystal alloys and method

Details Dispersion strengthened single crystal alloys and method Dispersion strengthened single crystal alloys and method

1987-10-27

1989-07-18

Dean, R.

Metal treatment

Compositions

Heat treating

148162, 148404, 148410, C22F 110

Patent

active

048490300

ABSTRACT:
The present invention is directed to single crystal superalloys of eutectic or near-eutectic composition. The high temperature mechanical properties of the superalloys of the invention are improved by precipitation of dispersoids of a phase of the eutectic into the single crystal matrix during thermal treatment subsequent to solidification of the single crystal from the superalloy melt. During solidification, the growth of the dispersed phase is suppressed.

REFERENCES:
patent: 3494709 (1970-02-01), Piearcey

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