High corrosion-resistant amorphous alloys

Details High corrosion-resistant amorphous alloys High corrosion-resistant amorphous alloys

C - Chemistry, Metallurgy

22

C

C22C 45/00 (2006.01) C23C 14/34 (2006.01)

Patent

CA 2068046

Amorphous alloys 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: XaCrbMc 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 b 75, 0 < c 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 and solutions containing chlorine ions.

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