High-strength corrosion-resistant aluminum alloy profile and preparation method thereof
A corrosion-resistant aluminum alloy and high-strength technology, applied in the field of aluminum alloys, can solve the problems of easy corrosion and reduce the service life of aluminum alloy materials, and achieve the effects of improving fatigue resistance, reducing deformation resistance, and improving strength and toughness.
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Embodiment 1
[0021] A high-strength corrosion-resistant aluminum alloy profile proposed by the present invention includes an aluminum alloy substrate and a ceramic coating, and the aluminum alloy substrate includes the following components by mass fraction: Cu: 0.35%, Si: 0.21%, Fe: 0.3% , Cr: 0.7%, Mg: 0.65%, Mn: 0.5%, Zn: 0.2%, Ti: 0.35%, Li: 0.1%, Ni: 0.4%, Zr: 0.06%, Y: 0.15%, W: 0.04% , V: 0.12%, and the rest is Al.
[0022] Wherein, the raw material of described ceramic coating is nano-ceramic powder, and its raw material comprises by weight: 20 parts of SiC, 20 parts of Cr 2 o 3 , 15 parts of NiO, 20 parts of Cr 3 C 2 , 20 Al 2 o 3, 12 Si 3 N 4 ;
[0023] The present invention also proposes a method for preparing a high-strength corrosion-resistant aluminum alloy profile, which is prepared according to the following process:
[0024] S1. Melting raw materials to obtain aluminum alloy ingots, and obtaining primary aluminum alloy ingots after homogenization treatment;
[002...
Embodiment 2
[0028] A high-strength corrosion-resistant aluminum alloy profile proposed by the present invention includes an aluminum alloy substrate and a ceramic coating, and the aluminum alloy substrate includes the following components by mass fraction: Cu: 0.65%, Si: 0.16%, Fe: 0.5% , Cr: 0.4%, Mg: 1%, Mn: 0.2%, Zn: 0.7%, Ti: 0.1%, Li: 0.2%, Ni: 0.15%, Zr: 0.18%, Y: 0.04%, W: 0.09% , V: 0.06%, and the rest is Al.
[0029] Wherein, the raw material of described ceramic coating is nano-ceramic powder, and its raw material comprises by weight: 30 parts of SiC, 10 parts of Cr 2 o 3 , 25 parts of NiO, 12 parts of Cr 3 C 2 , 30 parts Al 2 o 3 , 5 Si 3 N 4 ;
[0030] The present invention also proposes a method for preparing a high-strength corrosion-resistant aluminum alloy profile, which is prepared according to the following process:
[0031] S1. Melting raw materials to obtain aluminum alloy ingots, and obtaining primary aluminum alloy ingots after homogenization treatment;
[...
Embodiment 3
[0035] A high-strength corrosion-resistant aluminum alloy profile proposed by the present invention includes an aluminum alloy substrate and a ceramic coating, and the aluminum alloy substrate includes the following components by mass fraction: Cu: 0.53%, Si: 0.18%, Fe: 0.41% , Cr: 0.55%, Mg: 0.82%, Mn: 0.33%, Zn: 0.45%, Ti: 0.22%, Li: 0.15%, Ni: 0.28%, Zr: 0.12%, Y: 0.11%, W: 0.065% , V: 0.095%, and the rest is Al.
[0036] Wherein, the raw material of described ceramic coating is nano-ceramic powder, and its particle size is 70nm, and the raw material of nano-ceramic powder comprises by weight: 25 parts of SiC, 15 parts of Cr 2 o 3 , 20 parts of NiO, 16 parts of Cr 3 C 2 , 25 Al 2 o 3 , 8 Si 3 N 4 ;
[0037] The present invention also proposes a method for preparing a high-strength corrosion-resistant aluminum alloy profile, which is prepared according to the following process:
[0038] S1. After smelting the raw materials to obtain an aluminum alloy ingot, the alum...
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