Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1990-12-03
1992-08-18
Lin, Kuang Y.
Metal founding
Process
Shaping liquid metal against a forming surface
164475, B22D 2300
Patent
active
051390779
ABSTRACT:
A magnesium alloy consists essentially of the formula Mg.sub.bal Al.sub.a Zn.sub.b X.sub.c, wherein X is at least one element selected from the group consisting of manganese, cerium, neodymium, praseodymium, and yttrium, "a" ranges from about 0 to 15 atom percent, "b" ranges from about 0 to 4 atom percent, and "c" ranges from about 0.2 to 3 atom percent, the balance being magnesium and incidental impurities, with the proviso that the sum of aluminum and zinc present ranges from about 2 to 15 atom percent. Second phase particles contained by the alloy are less susceptible to corrosion attack. Articles produced from the alloy have superior corrosion resistance and mechanical properties comparable to those made from commercial magnesium alloys. Such articles are suitable for application as structural members in helicopters, air frames, such as gear box housings, where good corrosion resistance in combination with low density and good strength are required.
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patent: 4765954 (1988-08-01), Das et al.
Chang Chin-Fong
Das Santosh K.
Allied-Signal Inc.
Buff Ernest D.
Fuchs Gerhard H,.
Lin Kuang Y.
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