Magnesium alloy cast material for plastic processing, magnesium

Details Magnesium alloy cast material for plastic processing, magnesium Magnesium alloy cast material for plastic processing, magnesium

1997-10-08

2000-11-07

Sheehan, John

Metal treatment

Stock

Magnesium base

420409, 428469, 4284723, 301 95, 3011051, C22L 2300

Patent

active

061430978

ABSTRACT:
This invention is to provide a magnesium alloy cast material capable of manufacturing a wheel, a large-sized forged piece such as wheel having properties equivalent to those of aluminum molten forged member, directly from the state of continuous cast material. The magnesium alloy cast material is a nearly intermediate alloy composition between conventional AZ61 alloy and AZ80 alloy, comprising Al: 6.2 to 7.6 wt. %, Mn: 0.15 to 0.4 wt. %, Zn: 0.4 to 0.8 wt. % and Mg: balance, and casting by defining the mean crystal grain size under 200 .mu.m. The forgeability is excellent, and when forged, a forged piece superior in mechanical properties and corrosion resistance to the aluminum molten forged member can be manufactured.

REFERENCES:
patent: 2095975 (1937-10-01), Fischer
patent: 3094413 (1963-06-01), Fisher et al.
patent: 3718460 (1973-02-01), Foerster
patent: 5073207 (1991-12-01), Faure et al.
patent: 5143564 (1992-09-01), Gruzleski et al.
patent: 5651590 (1997-07-01), Word
patent: 5902424 (1999-05-01), Fujita et al.

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