Highly corrosion-resistant amorphous alloys

Details Highly corrosion-resistant amorphous alloys Highly corrosion-resistant amorphous alloys

1994-03-07

1996-08-27

Sheehan, John

Chemistry: electrical and wave energy

Processes and products

Coating, forming or etching by sputtering

148403, 420421, 420422, 420588, C23C 1434

Patent

active

055497977

ABSTRACT:
Amorphous alloy comprising 30 to 75 atomic % Cr, the remainder being substantially at least one element selected from the group consisting of Ti and Zr and alloys represented by the general formula: X.sub.a Cr.sub.b M.sub.c wherein X is at least one element selected from the group consisting of Ti and Zr; M is at least one element selected from the group consisting of Mg, Al, Fe, Co, Ni, Cu, Mo and W; and a, b, and c are, in atomic percentage, a>20, 20 .ltoreq.b.ltoreq.75, 0<c .ltoreq.20 and a+b+c=100. The alloys are excellent in corrosion resistance and wear resistance, form a stable protective film and are spontaneously passive, even in corrosive environment such as a poorly oxidizing, highly corrosive HCl solution containing chlorine ions.

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