Alloys or metallic compositions – Magnesium base
Patent
1987-10-01
1988-09-13
Andrews, Melvyn J.
Alloys or metallic compositions
Magnesium base
75249, 419 48, 419 49, C22C 2300, B22F 314
Patent
active
047708506
ABSTRACT:
A novel magnesium alloy consisting essentially of about 6 to 14 weight percent calcium, about 4 to 8 weight percent of copper or nickel, balance magnesium.
There is also provided a process for producing a magnesium alloy article having improved properties which comprises the steps of providing a rapidly solidified product having the composition defined above and having a maximum average thickness of about 200 microns in at least one dimension, introducing the rapidly solidified product into a mold, and consolidating the rapidly solidified product to obtain a desired densification of the rapidly solidified product. Consolidation may be carried out by hot isostatic pressing (HIP'ing) the rapidly solidified product at a pressure of about 100 to 300 MPa and a temperature of about 150.degree. to 350.degree. C. for a time sufficient to obtain the desired densification. Alternatively, consolidation may be accomplished by extrusion using the same temperature range, and an extrusion ratio of about 10:1 to 30:1.
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patent: 2221245 (1940-11-01), Hanawalt et al.
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patent: 2823996 (1958-02-01), Gardner
patent: 4439379 (1984-03-01), Hart
patent: 4460407 (1984-07-01), Keith
Froes Francis H.
Hehmann Franz J.
Krishnamurthy Setumadhavan
Robertson Erica
Savage Steven J.
Andrews Melvyn J.
Bricker Charles E.
Kundert Thomas L.
McDowell Robert L.
Singer Donald J.
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