Amorphous alloy

Abstract

The present invention relates to an amorphous alloy and a method for manufacturing thereof. The amorphous alloy according to the present invention includes has a chemical formula of Ni 100-a-b-c-d-e-f Nb a Zr b Ti c Ta d M e I f , wherein the M is at least one selected from a group of Sn and Si, wherein the I is at least one selected from a group of C and O, and wherein the a, b, c, d, e, and f are satisfied with the compositions of 10.0 wt %≦a≦25.0 wt %, 5.0 wt %≦b≦25.0 wt %, 5.0 wt %≦c≦10.0 wt %, 0.0 wt %≦d≦25.0 wt %, 0.0 wt %≦e≦6.5 wt %, 0.0 wt %≦f≦0.5 wt %, respectively.

1 . The amorphous alloy having a chemical formula of Ni 100-a-b-c-d-e-f Nb a Zr b Ti c Ta d M e I f ,
 wherein the M is at least one selected from a group of Sn and Si, wherein the I is at least one selected from a group of C and O, and wherein the a, b, c, d, e, and f are satisfied with the compositions of 10.0 wt %≦a≦25.0 wt %, 5.0 wt %≦b≦25.0 wt %, 5.0 wt %≦c≦10.0 wt %, 0.0 wt %≦d≦25.0 wt %, 0.0 wt %≦e≦6.5 wt %, 0.0 wt %≦f≦0.5 wt %, respectively.   
     
     
         2 . The amorphous alloy of  claim 1 , wherein Vickers microhardness of the amorphous alloy is 1000 kgf/mm 2  or more, and strength of the amorphous alloy is in a range from 2500 MPa to 4000 MPa. 
     
     
         3 . The amorphous alloy of  claim 1 , wherein the amorphous alloy is used as a material for a bipolar plate of a fuel cell.