Single crystal solidification using multiple seeds

Details Single crystal solidification using multiple seeds Single crystal solidification using multiple seeds

1981-12-23

1984-09-04

Godici, Nicholas P.

Metal founding

Process

Shaping liquid metal against a forming surface

164127, B22D 2704, B22D 1500

Patent

active

044691602

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.

REFERENCES:
patent: 2694024 (1954-11-01), Bond et al.
patent: 2791813 (1957-05-01), Delano
patent: 3260505 (1966-07-01), Snyder
patent: 3598169 (1971-08-01), Copley et al.
patent: 3857436 (1974-12-01), Petrov et al.

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