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AlMg based aluminum alloy board null for high-speed super plastic formation
AlMg based aluminum alloy board null for high-speed super plastic formation
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机译：AlMg基铝合金板，用于高速超塑性成形
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摘要
PROBLEM TO BE SOLVED: To provide an Al-Mg aluminum alloy sheet having high strength after being superplastically formed with high strain rate, and superior high strain rate superplastic formability, particularly for a use in a vehicle body panel.;SOLUTION: The Al-Mg aluminum alloy sheet for high strain rate superplastic-forming comprises 3.5-7.0% Mg, more than 0.5% but 1.0% or less Cu, 0.001-0.1% Ti, Si and Fe each limited to 0.2% or less, 0.1% or less Mn and the balance Al with unavoidable impurities; and has a 0.2% yield stress of 150 MPa or higher, after having been subjected to heat treatment of holding the sheet at 500°C for three minutes and radiationally cooling it to room temperature and then further to an artificial aging.;COPYRIGHT: (C)2005,JPO&NCIPI
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