Single crystal solidification using multiple seeds
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United States of America Patent
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-
Sep 4, 1984
Grant Date -
N/A
app pub date -
Dec 23, 1981
filing date -
Dec 23, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is a method for directional solidification of large single crystal metal alloy castings using multiple seed crystals. Solidification interfaces emanate from the separate seeds, and merge to form a unitary solidification interface which is caused to move through the article. The crystallographic orientation of the seeds is controlled, to avoid unacceptable mismatch of crystal structure orientation where the separate interfaces merge.
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