Composition of amorphous alloy and method for fabricating the same

Abstract

A composition includes a base and a weld member welded to the base to form a weld area. Both the weld member and the base are made of Zr-rich bulk amorphous alloy. The weld member includes a main body and a weld portion disposed at an end of the main body. A thickness of the weld portion is less than that of the main body. The weld portion has a thickness of about 1.00 mm to about 1.30 mm, and the weld area of the composition is in an amorphous state.

1 . A composition, comprising a base and a weld member, wherein both the weld member and the base are made of Zr-rich bulk amorphous alloy; the weld member comprises a main body and a weld portion disposed at an end of the main body, a thickness of the weld portion being less than that of the main body; the weld portion has a thickness of about 1.00 mm to about 1.30 mm; the weld portion of the weld member is welded to the base, thereby forming a weld area; the weld area of the composition in an amorphous state. 
     
     
         2 . The composition of  claim 1 , wherein both the weld member and the base are made of Zr-rich bulk amorphous alloy selected from the group consisting of Zr—Cu—Al—Ni, Zr—Cu—Al—Ni—Ti, Zr—Cu—Al—Ni—Nb, Zr—Cu—Ni—Ti—Be, Zr—Cu—Al—Ni—Be, and Zr—Cu—Al—Ti—Be. 
     
     
         3 . The composition of  claim 1 , wherein the weld portion is about 1.06 mm to about 1.26 mm thick. 
     
     
         4 . The composition of  claim 3 , wherein the weld portion is about 1.16 mm. 
     
     
         5 . The composition of  claim 1  has a maximum tensile load from about 65.62 kg to about 83.51 kg. 
     
     
         6 . The composition of  claim 1 , wherein the weld portion is welded to the base by a pulsed laser. 
     
     
         7 . The composition of  claim 6 , wherein a maximum power of the pulsed laser exceeds or equals 3.5 kW, and a welding rate exceeds 2 mm/sec.