▎ 摘 要
NOVELTY - Graphene uniform distribution reinforced aluminum alloy comprises 5.0-8.0 wt.% silicon, 0.20-0.50 wt.% magnesium, 0.001-0.007 wt.% graphene, less than or equal to 0.2 wt.% zinc, less than or equal to 0.1 wt.% manganese, less than or equal to 0.1 wt.% titanium, less than or equal to 0.15 wt.% zirconium, less than or equal to 0.1 wt.% beryllium, less than or equal to 0.05 wt.% tin, less than or equal to 0.1 wt.% lead, less than or equal to 0.03 wt.% other unavoidable elements, less than or equal to 0.10 wt.% total, and balance is aluminum. USE - Graphene uniform distribution reinforced aluminum alloy. ADVANTAGE - The graphene uniform distribution reinforced aluminum alloy has mild smelting conditions, simple to process and cost-effective, provides uniformity of graphene dispersion in the prepared aluminum alloy, having tensile strength of aluminum alloy, yield strength and improves elongation, and has wide application range. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a graphene uniform distribution reinforced aluminum alloy, which involves: (A) weighing each raw material by using graphene and aluminum alloy raw materials, and placing middle layer; (B) closing induction melting furnace door, opening vacuum pump to evacuate the air in the furnace body, and then charging high-purity argon gas for gas washing, continuing to vacuum to 50 Pascal, and filling inert gas argon gas to protect the atmosphere at pressure of 500 Pascal which reduces the volatilization of magnesium; (C) turning on the power of the melting furnace, starting melting the alloy in stages, and raising melting at 650 degrees C with heating rate of 5 degrees C per second; (D) heating first stage at 720 degrees C at a heating rate of 2.5 degrees C per second, and then keeping for 100 second; (E) sloshing amplitude is positive and negative 10 of the melting enthalpy axis, and shaking with frequency of 6 times per minute; (F) heating melt third stage at 750 degrees C at a heating rate of 1.5 degrees C per second for 100 second, after the casting is completed; and (G) extracting high temperature gas in the furnace by a vacuum pump for 30 second, and then charging argon at room temperature, sampling after 600 second.