Fine grained metal composition

Metal treatment – Compositions – Heat treating

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

148 115A, 148 115C, 148437, 148432, C22F 104, C22F 108

Patent

active

044153740

ABSTRACT:
A fine grained metal composition suitable for forming in a partially solid, partially liquid condition. The composition is prepared by producing a solid metal composition having an essentially directional grain structure and heating the directional grain composition to a temperature above the solidus and below the liquidus to produce a partially solid, partially liquid mixture containing at least 0.05 volume fraction liquid. The composition, prior to heating, has a strain level introduced such that upon heating, the mixture comprises uniform discrete spheroidal particles contained within a lower melting matrix. The heated alloy is then solidified while in a partially solid, partially liquid condition, the solidified composition having a uniform, fine grained microstructure.

REFERENCES:
patent: 2861302 (1958-11-01), Mann et al.
patent: 2963758 (1960-12-01), Pestel et al.
patent: 3268963 (1966-08-01), Mann
patent: 3902544 (1975-09-01), Flemings et al.
patent: 3936298 (1976-02-01), Mehrabian et al.
patent: 3948650 (1976-04-01), Flemings et al.
patent: 3954455 (1976-05-01), Flemings et al.
patent: 3995678 (1976-12-01), Zavaras et al.
patent: 4030534 (1977-06-01), Ito et al.
patent: 4040467 (1977-08-01), Alberny et al.
patent: 4042007 (1977-08-01), Zavaras et al.
patent: 4042008 (1977-08-01), Alberny et al.
patent: 4150712 (1979-04-01), Dussart
patent: 4229210 (1980-10-01), Winter et al.
Flemings et al., "Rheocasting Processes", AFS International Cast Metals Journal, Sep. 1976, pp. 11-22.
Fascetta et al., "Die Casting Partially Solidified High Copper Content Alloys", AFS Cast Metals Research Journal, Dec. 1973, pp. 161-171.
Szekely et al., "Electromagnetically Driven Flows in Metals Processing", Journal of Metals, Sep. 1976, pp. 6-11.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Fine grained metal composition does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fine grained metal composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fine grained metal composition will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-158025

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.