High elastic aluminum alloy and method for producing the same

Abstract

Disclosed is an aluminum alloy, including: about 14˜20 wt % of Si; about 2˜7.5 wt % of Ti; about 1˜3 wt % of B; and a balance of Al as a main component, wherein wt % are based on the total weight of the aluminum alloy and wherein a ratio of Ti/B is about 2˜2.5:1.

1 . An aluminum alloy, comprising: about 14˜20 wt % of Si; about 2˜7.5 wt % of Ti; about 1˜3 wt % of B: about 2˜7 vol % of CNT; and a balance of Al as a main component, wherein wt % are based on the total weight of the aluminum alloy, and wherein a ratio of Ti/B is about 2˜2.5:1. 
     
     
         2 . The aluminum alloy of  claim 1 , wherein the aluminum alloy is formed by continuous casting. 
     
     
         3 . The aluminum alloy of  claim 1 , wherein the Ti, B and Al components comprise aluminum mother alloys of Al-(5˜10 wt %)Ti and Al-(2˜10 wt %)B. 
     
     
         4 . (canceled) 
     
     
         5 . The aluminum alloy of claim  14 , wherein the CNT is coated with one or more metal oxides. 
     
     
         6 . A method of manufacturing the aluminum alloy of  claim 4 , comprising the steps of:
 coating CNT with one or more metal oxides;   introducing the CNT into an aluminum molten solution together with inert gas and stirring to form a mixture; and   forming the aluminum alloy from the mixture using continuous casting.   
     
     
         7 . The method of  claim 6 , wherein the CNT is coated with one or more metal oxides to a thickness of about 20˜50 nm. 
     
     
         8 . The method of  claim 6 , wherein the stirring is performed at a rotation speed of about 500˜1500 rpm. 
     
     
         9 . The method of  claim 6 , wherein, in the step of forming the aluminum alloy, the aluminum molten solution is vibrated on a casting table during the continuous casting before it is injected into a mold.