Rapidly solidified aluminum-magnesium base brazing alloys
AssigneeAlliedSignal Inc.
InventorsChin-Fong Chang, Santosh K. Das, Michael S. Zedalis
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AssigneeAlliedSignal Inc.
InventorsChin-Fong Chang, Santosh K. Das, Michael S. Zedalis
Estimating the term…
A rapidly solidified brazing alloy consists essentially of about 14 to 45 weight percent magnesium and 0 to 10 weight percent of at least one element selected from the group consisting of silicon, bismuth, strontium, lithium, copper, calcium, zinc and tin, the balance being aluminum and incidental impurities. The alloy has a microcrystalline structure containing uniformly distributed intermetallic particles. It has the form of a foil (liquidus temperature <570.degree. C.) and can be used to braze non-heat-treatable rapidly solidified Al-Fe-V-Si alloy foil, sheet, plate, and tubing to produce components such as deicing duct, overduct, radiator, heat exchanger, evaporator, honeycomb panel for elevated temperature applications.
A rapidly solidified brazing alloy consisting essentially of about 14 to 45 weight percent magnesium and 0 to 10 weight percent of at least one element selected from the group consisting of silicon, bismuth, strontium, lithium, copper, calcium, zinc and tin, the balance being aluminum and incidental impurities, said alloy having a microcrystalline structure containing uniformly distributed intermetallic particles.
A brazed metal article, said article being made from rapidly solidified aluminum base alloy having a composition consisting essentially of the formula Al.sub.bal Fe.sub.a Si.sub.b X.sub.c, wherein X is at lest one element selected from the group consisting of Mn, V, Cr, Mo, W, Nb, Ta, "a" ranges from 2.0 to 7.5 at %, "b" ranges from 0.5 to 3.0 at %, "c" ranges from 0.05 to 3.5 at % and the balance is aluminum plus incidental impurities, with the proviso that the ratio {Fe+X}:Si ranges from about 2.0:1 to 5.0:1;
Dependencies are inferred from the claim text.