High-strength and high-tenacity aluminum alloy and preparing method thereof
A high-toughness, aluminum alloy technology, applied in metal rolling and other directions, can solve problems such as strength reduction and aluminum alloy product failure, and achieve the effects of inhibiting recrystallization, improving strength and toughness, and excellent corrosion resistance and heat resistance
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Embodiment 1
[0019] A high-strength and high-toughness aluminum alloy, its composition includes by weight percentage: Mg: 1.3%, Zn: 6.9%, Cu: 1.05%, Yb: 0.16%, Fe: 0.08%, Si: 0.11%, Zr: 0.04 %, Ti: 0.23%, Cr: 0.01%, Mn: 0.24%, B: 0.14%, Li: 0.21%, Ag: 0.28%, and the balance is Al.
[0020] The present invention also proposes a method for preparing the high-strength and high-toughness aluminum alloy, comprising the following steps:
[0021] S1. Weigh magnesium ingots, zinc ingots, aluminum-copper master alloys, Al-Yb master alloys, aluminum-iron master alloys, metal silicon, aluminum-zirconium master alloys, aluminum-titanium master alloys, aluminum-chromium master alloys, manganese ingots, aluminum Boron master alloys, aluminum-lithium master alloys, aluminum ingots and pure silver; metal silicon, aluminum ingots, magnesium ingots, zinc ingots and manganese ingots are added to the smelting furnace, melted at 770°C for 25 minutes, then the remaining raw materials are added, melted and refin...
Embodiment 2
[0024] A high-strength and high-toughness aluminum alloy, its composition includes by weight percentage: Mg: 1.5%, Zn: 7.1%, Cu: 2%, Sc: 0.01%, Er: 0.07%, Fe: 0.08%, Si: 0.15 %, Zr: 0.12%, Ti: 0.09%, Cr: 0.03%, Mn: 0.1%, B: 0.07%, Li: 0.27%, Ag: 0.3%, and the balance is Al.
[0025] The present invention also proposes a method for preparing the high-strength and high-toughness aluminum alloy, comprising the following steps:
[0026] S1. Weigh magnesium ingots, zinc ingots, aluminum-copper master alloys, Al-Sc master alloys, Al-Er master alloys, aluminum-iron master alloys, metal silicon, aluminum-zirconium master alloys, aluminum-titanium master alloys, and aluminum-chrome master alloys according to the ratio Alloy, manganese ingot, aluminum-boron master alloy, aluminum-lithium master alloy, aluminum ingot and sterling silver; put metal silicon, aluminum ingot, magnesium ingot, zinc ingot and manganese ingot into the melting furnace, melt at 750°C for 55min, then add The rema...
Embodiment 3
[0029] A high-strength and high-toughness aluminum alloy, its composition includes by weight percentage: Mg: 1.99%, Zn: 6.18%, Cu: 1.1%, RE: 0.07%, Fe: 0.15%, Si: 0.18%, Zr: 0.09 %, Ti: 0.01%, Cr: 0.02%, Mn: 0.12%, B: 0.07%, Li: 0.11%, Ag: 0.42%, and the balance is Al; wherein, RE is a mixture of Y, Ce, La, and The weight ratio of Y, Ce, and La is 1:3:3.
[0030] The present invention also proposes a method for preparing the high-strength and high-toughness aluminum alloy, comprising the following steps:
[0031] S1. Weigh magnesium ingots, zinc ingots, aluminum-copper master alloys, Al-RE master alloys, aluminum-iron master alloys, metal silicon, aluminum-zirconium master alloys, aluminum-titanium master alloys, aluminum-chromium master alloys, manganese ingots, aluminum Boron master alloys, aluminum-lithium master alloys, aluminum ingots and pure silver; metal silicon, aluminum ingots, magnesium ingots, zinc ingots and manganese ingots are added to the melting furnace, melted...
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