预时效工艺对铝镁硅铜合金板材织构的影响  

Effect of Preaging on Textures of Al-Mg-Si-Cu Alloy Sheets

作　　者：陈海军[1,2] 陈静[2] 卢广玺[1] 张春香[1] 关绍康[1] 

机构地区：[1]郑州大学材料科学与工程学院,郑州450002 [2]河南工程学院机械工程系,郑州451191

出　　处：《机械工程材料》2011年第4期13-16,共4页Materials For Mechanical Engineering

基　　金：河南省杰出人才创新基金资助项目(0321001100)

摘　　要：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。The texture changes of Al-Mg-Si-Cu alloy sheets which had been preaging treatment after solution were analyzed by means of electron back scattering diffraction （EBSD）, the influence of preaging process on the alloy sheets texture was studied. The results show that the texture types basically unchanged and the density of texture changed in the alloys after different preaging treatments. Some texture components appeared such as very weak cube, weak brass B, R/S and the specific Q orientation occurred during roiled at a large reduction with natural aging treatment. Some texture components occurred including very strong G orientation, Q and R/S orientation when preaging at 150℃ for 5 min. Some texture components turned up including strong cube （deflection） and Q orientation when preaging at 150℃ for 30 min.

关 键 词：电子背散射衍射 织构 铝镁硅铜合金 预时效 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG115.222.4[金属学及工艺—金属材料]