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
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。
织构
铝镁硅铜合金
预时效
EBSD
texture
Al-Mg-Si-Cu alloy
preaging
Abstract
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 rolled 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.
中图分类号 TG146.21 TG115.222.4
所属栏目
基金项目 河南省杰出人才创新基金资助项目(0321001100)
收稿日期 2010/4/24
修改稿日期 2011/2/21
网络出版日期
作者单位点击查看
备注陈海军(1974-),男,河南郑州人,讲师,博士研究生。
引用该论文: CHEN Hai-jun,CHEN Jing,LU Guang-xi,ZHANG Chun-xiang,GUAN Shao-kang. Effect of Preaging on Textures of Al-Mg-Si-Cu Alloy Sheets[J]. Materials for mechancial engineering, 2011, 35(4): 13～16
陈海军,陈静,卢广玺,张春香,关绍康. 预时效工艺对铝镁硅铜合金板材织构的影响[J]. 机械工程材料, 2011, 35(4): 13～16
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参考文献
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【3】WANG X, ESMAEILI S, LLOYD D J. The sequence of precipitation in the Al-Mg-Si alloy AA6111[J].Metallurgical and Materials Transactions A,2006,37(9):2691-2699.
【4】杨平, 孙祖庆, 毛卫民.取向成像: 一种有效研究晶体材料组织、结构及取向的技术[J].中国体视学与图象分析, 2001, 6(1): 50-54.
【5】CHOI C H, KWON J W, OH K H,et al. Analysis of deforma-tion texture inhomogeneity and stability condition of shear components in f. C. C. metals[J].Acta Mater,1997,45(12):5119-5128.
【6】HUMPHREYS F J. Recrystallization mechanisms in two-phase alloys[J].Metal Science,1979,13:136-145.
【7】ENGLER O, HIRSHC J. Texture control by thermomechanical processing of aa6xxx Al-Mg-Si sheet alloys for automotive applications-a review[J].Materials Science and Engineering A,2002,336:249-262.
【8】ENGLER O, HIRSHC J. Recrystallization textures and plastic anisotropy in Al-Mg-Si sheet alloys[J].Mater Sci Forum,1996,217/227:479-485.
【9】ENGLER O. On the origin of the R orientation in the recrystallization textures of aluminum alloys[J].Metallurgical and Materials Transactions A,1999,30(6):1517-1527.
【10】HORNBOGEN E. Combined Reactions[J].Metallurgical and Materials Transactions A,1979,10(8):947-972.
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