在Gleeble-1500热模拟试验机上对LD7铝合金试样在变形程度为60%,变形温度为360~480 ℃、变形速率为0.01~1 s-1的条件下进行等温压缩试验,得到了不同应变、不同变形温度和应变速率下材料的真实应力,并利用古布金公式对实验结果进行了摩擦修正.研究结果表明:LD7铝合金是动态回复型合金;合金的流动应力随温度的升高而降低,最佳变形温度是400~450 ℃;该材料对应变速率具有很高的敏感性.
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