Boron addition to alloys

Details Boron addition to alloys Boron addition to alloys

1984-12-10

1985-08-20

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75 53, 75 82, C22B 2300

Patent

active

045362157

ABSTRACT:
A process for addition of boron to an alloy which involves forming a melt of the alloy and a reactive metal, selected from the group consisting of aluminum, titanium, zirconium and mixtures thereof to the melt, maintaining the resulting reactive mixture in the molten state and reacting the boric oxide with the reactive metal to convert at least a portion of the boric oxide to boron which dissolves in the resulting melt, and to convert at least portion of the reactive metal to the reactive metal oxide, which oxide remains with the resulting melt, and pouring the resulting melt into a gas stream to form a first atomized powder which is subsequently remelted with further addition of boric oxide, re-atomized, and thus reprocessed to convert essentially all the reactive metal to metal oxide to produce a powdered alloy containing specified amounts of boron.

REFERENCES:
patent: 2528867 (1950-11-01), Day
patent: 3754899 (1973-08-01), Kanter
patent: 3948648 (1976-04-01), Meichsner
patent: 4124378 (1978-11-01), Kurdowski
patent: 4175950 (1979-11-01), Linares
patent: 4440568 (1984-04-01), Staggers

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