High elasticity hyper eutectic aluminum alloy and method for manufacturing the same
Disclosed herein is a high-elasticity hypereutectic aluminum alloy, including: titanium (Ti) and boron (B), wherein a composition ratio of Ti: B is 3.5 to 5:1, boron (B) is included in an amount of 0.5 to 2 wt %, and both Al 3 Ti and TiB 2 are included as reinforcing agents.
1. A high-elasticity hypereutectic aluminum alloy, comprising: copper (Cu) in an amount of about 4.5 wt %, magnesium (Mg) in an amount of about 0.60 wt %, silicon (Si) in an amount of about 17 to 19 wt %, zinc (Zn) in an amount of about 0.50 wt % boron (B) in an amount of about 0.5 to 2 wt %, titanium (Ti) in an amount of about 4 to 6 wt %, and a balance of aluminum (Al),
wherein a composition ratio of Ti: B is between about 3.5 to about 5:1, and both Al 3 Ti and TiB 2 are included as reinforcing agents.
2. A high-elasticity hypereutectic aluminum alloy, essentially consisting of:
copper (Cu) in an amount of about 4.5 wt %, magnesium (Mg) in an amount of about 0.60 wt %, silicon (Si) in an amount of about 17 to 19 wt %, zinc (Zn) in an amount of about 0.50 wt %, boron (B) in an amount of about 0.5 to 2 wt %, titanium (Ti) in an amount of about 4 to 6 wt %, and a balance of aluminum (Al),
wherein a composition ratio of Ti: B is between about 3.5 to about 5:1, and both Al 3 Ti and TiB 2 are included as reinforcing agents.
3. A method of manufacturing the high-elasticity hypereutectic aluminum alloy of claim 1 , comprising the steps of:
introducing Al and an Al-B master alloy, and an Al-Ti master alloy or a Ti material into a melting furnace, wherein a composition ratio of Ti: B is between about 3.5 and about 5:1 and B is included in an amount of about 0.5 to 2 wt %, thereby preparing a molten metal;
first stirring the molten metal to promote a reaction, wherein both Al 3 Ti and TiB 2 are formed as reinforcing agents;
introducing an additive; and
second stirring the molten metal such that the formed reinforcing agents are uniformly dispersed in the molten metal.
4. The method of claim 3 , wherein the Al-B master alloy comprises an amount of about 3 to 8 wt % of B and a balance of Al.
5. The method of claim 3 , wherein the Al-Ti master alloy comprises an amount of about 5 to 10 wt % of Ti and a balance of Al.
6. A vehicle part manufactured from the high-elasticity hypereutectic aluminum alloy of claim 1 .
7. A vehicle part manufactured from the high-elasticity hypereutectic aluminum alloy of claim 2 .