Ternary-Alloy Metallic Glass and Method for Making the Same

Abstract

The present invention relates to a ternary-alloy metallic glass and a method for making the same, wherein the ternary-alloy metallic glass is a Cu/Zr/Ag ternary-alloy metallic glass. Comparing to the traditional metal and current conventional alloy metallic glass, the Cu/Zr/Ag ternary-alloy metallic glass performs good mechanical properties of high strength, well wear and corrosion resistance, and capable of being processed to precision instruments, machinery or components for further applying to military, high-tech products, as well as nano medical industries. Moreover, the wide supercooled liquid region of Zr-based metallic glass not only facilitates the three metals of Cu, Zr and Ag capable of being fabricated to the ternary-alloy metallic glass easily, but also makes the manufacturing process of the Cu/Zr/Ag ternary-alloy metallic glass become simple and convenient.

What is claimed is: 
     
         1 . A ternary-alloy metallic glass, comprising:
 a first metal material, being selected from the group consisting of: Cu, Zr, Ag, Ni, Fe, and Mg;   a second metal material, being selected from the group consisting of: Cu, Zr, Ag, Ni, Fe, and Mg; and   a third metal material, being selected from the group consisting of: Cu, Zr, Ag, Ni, Fe, and Mg;   wherein each of the first metal material, the second metal material and the third metal material have a specific composition ratio, and the three metal materials are further manufactured to the ternary-alloy metallic glass having high strength, wear resistance and corrosion resistance by using an arc smelting furnace and a copper mould formation;   wherein the specific composition ratio of the first metal material is ranged from 35 at % to 50 at %, the specific composition ratio of the second metal material being ranged from 40 at % to 55 at %, and the specific composition ratio of the third metal material being ranged from 10 at % to 20 at %.   
     
     
         2 . The ternary-alloy metallic glass of  claim 1 , wherein the specific composition ratio of the first metal material is ranged from 35 at % to 50 at %, the specific composition ratio of the second metal material being ranged from 40 at % to 55 at %, and the specific composition ratio of the third metal material being ranged from 10 at % to 20 at %. 
     
     
         3 . The ternary-alloy metallic glass of  claim 1 , wherein the purity of the first metal material, the second metal material and the third metal material are all at least 99.99%. 
     
     
         4 . A method for manufacturing ternary-alloy metallic glass, comprising the steps of:
 (1) fabricating copper (Cu) having atomic percent ranged from 35 at % to 50 at %, zirconium (Zr) having atomic percent ranged from 40 at % to 55 at %, and silver (Ag) having atomic percent ranged from 10 at % to 20 at %, and then disposing the three metal materials by melting points level thereof.   (2) disposing the product obtained from the step (1) in an arc smelting furnace for smelting, so as to smelt the three metal materials of Cu, Zr and Ag to a ball-tablet shape alloy;   (3) soaking a pure copper mould in a liquid nitrogen for a specific soak time, and then disposing a copper gasket and the ball-tablet shape alloy on the pure copper mould after removing the pure copper mould from the liquid nitrogen;   (4) disposing the product obtained from the step (3) into the arc smelting furnace and connecting a vacuum pump to the bottom of the pure copper, and then evacuating the pure copper mould for a specific vacuum-pump time;   (5) smelting the ball-tablet shape alloy to a molten metal alloy, and making the molten metal alloy flow into the pure copper mould; and   (6) rapidly cooling the molten metal alloy, and then a ternary-alloy metallic glass is obtained.   
     
     
         5 . The method for manufacturing ternary-alloy metallic glass of  claim 4 , wherein the center of the copper gasket is hollow. 
     
     
         6 . The method for manufacturing ternary-alloy metallic glass of  claim 4 , wherein the pure copper mould comprises a hollow-penetration pure copper column in the interior thereof, and the hollow-penetration pure copper column having a specific inner diameter. 
     
     
         7 . The method for manufacturing ternary-alloy metallic glass of  claim 4 , wherein the step (2) further comprising the detailed steps of:
 (21) disposing the product obtained from the step (1) in the arc smelting furnace and executing the evacuation for 5 minutes;   (21) accessing argon into the arc smelting furnace for 5 minutes;   (23) repeating the aforesaid steps (21) and (22) for once;   (24) smelting the three metal materials of Cu, Zr and Ag to the ball-tablet shape alloy by 150 A-250 A current;   (25) turning over and continuously smelting the ball-tablet shape alloy; and   (26) repeating the aforesaid steps (24) and (25) for four times.   
     
     
         8 . The method for manufacturing ternary-alloy metallic glass of  claim 4 , wherein the specific soak time in the step (3) is 10 minutes. 
     
     
         9 . The method for manufacturing ternary-alloy metallic glass of  claim 4 , wherein the purity of the three meal materials of Cu, Zr and Ag are at least 99.99%. 
     
     
         10 . The method for manufacturing ternary-alloy metallic glass of  claim 4 , wherein the step (5) further comprising the detailed steps of:
 (51) accessing argon into the arc smelting furnace for 1 minute; and   (52) smelting the ball-tablet shape alloy by 150 A-250 A current, so as to make the molten metal alloy flow into the pure copper mould through the evacuation executed by the vacuum pump.   
     
     
         11 . The method for manufacturing ternary-alloy metallic glass of  claim 6 , wherein the specific inner diameter is ranged from 1 mm to 5 mm. 
     
     
         12 . The method for manufacturing ternary-alloy metallic glass of  claim 4 , wherein the specific vacuum-pump time is 1 minute.