Casting process with instantaneous unidirectional solidification

Details Casting process with instantaneous unidirectional solidification Casting process with instantaneous unidirectional solidification

1976-03-05

1977-11-08

Baldwin, Robert D.

Metal founding

Process

Shaping liquid metal against a forming surface

164122, B22D 2720

Patent

active

040570975

ABSTRACT:
A metallic alloy is cast in a mold to produce a solid body by unidirectional solidification. The alloy, initially in a molten state, is cast into a mold and is completely and progressively cooled in the mold while a unidirectional thermal gradient superimposed thereon parallel to a direction determined by the configuration of the mold (predetermined direction) until a metastable equilibrium is reached in which the entire body of the melt is in a super-cooled state as a homogeneous liquid. The equilibrium is then broken to cause solidification of the alloy and the formation of dendritic crystals with their principal axes parallel to the thermal gradient substantially instantly and without noticeable advance of a solidification front across the melt.

REFERENCES:
patent: 3620289 (1971-11-01), Phipps
patent: 3857436 (1974-12-01), Petrov et al.
Reed-Hill, "Physical Metallurgy Principles", pp. 367-391, 1964.
Davies, "Solidification and Casting", pp. 15-21, 1973.

Affiliated with

Also associated with

Rating

Casting process with instantaneous unidirectional solidification does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Casting process with instantaneous unidirectional solidification, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Casting process with instantaneous unidirectional solidification will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-225502