HIGH-STRENGTH AND HIGH-TOUGHNESS IMPACT-RESISTANT ENERGY-ABSORBING AL-MG-SI ALLOY

HIGH-STRENGTH AND HIGH-TOUGHNESS IMPACT-RESISTANT ENERGY-ABSORBING AL-MG-SI ALLOY

The present invention belongs to the technical field of aluminum alloy materials, and in particular relates to a high-strength and high-toughness impact-resistant energy-absorbing Al-Mg-Si alloy. The Al-Mg-Si alloy of the present invention comprises Mg 0.40-1.00%, Si 0.50-0.90%, Mn ≤ 0.60%, Cr ≤ 0.3...

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Hauptverfasser: GU, Chunming, JIANG, Haichun, RAN, Qingrong, LIU, Canwei, SONG, Zhengcheng, JING, Jiaming, SUN, Yuling
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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creator GU, Chunming
JIANG, Haichun
RAN, Qingrong
LIU, Canwei
SONG, Zhengcheng
JING, Jiaming
SUN, Yuling
description The present invention belongs to the technical field of aluminum alloy materials, and in particular relates to a high-strength and high-toughness impact-resistant energy-absorbing Al-Mg-Si alloy. The Al-Mg-Si alloy of the present invention comprises Mg 0.40-1.00%, Si 0.50-0.90%, Mn ≤ 0.60%, Cr ≤ 0.30%, Fe ≤ 0.25%, Al 96.8-99.1% in percentage by mass, wherein Sifree=Si-0.3×(Mn+Fe+Cr), a mass ratio of Mg/Sifree is 0.72-1.40, and a percentage by mass of Mg+2Sifree is 1.40%-2.40%. The aluminum alloy not only has excellent conventional mechanical properties, but also has good bending toughness and outstanding crushing and impact-resistant energy-absorbing properties.
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The Al-Mg-Si alloy of the present invention comprises Mg 0.40-1.00%, Si 0.50-0.90%, Mn ≤ 0.60%, Cr ≤ 0.30%, Fe ≤ 0.25%, Al 96.8-99.1% in percentage by mass, wherein Sifree=Si-0.3×(Mn+Fe+Cr), a mass ratio of Mg/Sifree is 0.72-1.40, and a percentage by mass of Mg+2Sifree is 1.40%-2.40%. 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subjects ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
title HIGH-STRENGTH AND HIGH-TOUGHNESS IMPACT-RESISTANT ENERGY-ABSORBING AL-MG-SI ALLOY
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