采用电子背散射衍射技术分析了铝镁硅铜合金板材在固溶处理后再经不同预时效处理后的织构变化,研究了预时效工艺对合金板材织构的影响.结果表明:经不同预时效处理后合金中织构的类型基本不变,而取向密度发生了变化;自然时效处理后出现很弱的立方、弱的黄铜B、R/S及大压下量时特有的Q织构;经150℃×5 min预时效处理后,存在很强的G、Q及R/S织构;经150℃×30 min预时效处理后,则出现较强的立方(偏转)及Q织构.
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