采用X射线衍射法分析了7B04铝合金中厚板沿厚度方向的织构差异,结果表明织构沿厚度方向存在较大差异,变形织构R/S,brass,copper从表层到中心含量呈递增趋势:剪切织构r-cube和{111} <110>主要分布在表层；随机分布从表层的73％到中心的17％含量则快速下降；再结晶织构cube和cubeND在各层的含量基本不变,均维持3％和5％附近.织构沿厚度方向存在差异的主要原因在于热轧变形量和再结晶进程沿厚度的不均匀性.根据再结晶织构组分和变化趋势推测再结晶形核机制主要为粒子促进形核.
参考文献
| [1] | Dumont D;Deschamps A;Brechet Y .Characterization of precipitation microstructures in aluminium alloy 7040 and 7050 and their relationship to mechanical behavior[J].Acta Matirialia,2003,51(03):713. |
| [2] | Singh R K;Singh A K;Prasad N Eswara .Texture and mechanical property anisotropy in an Al-Mg-Si-Cu alloy[J].Materials Science and Engineering A,2000,277:114. |
| [3] | Lin G Y;Zhang H;Zhang X J;HanD F,Zhang Y,Peng D S .Influence of processing routine on mechanical properties and structure of 7075 aluminum alloy thick plates[J].Transactions of Nonferrous Metals Society of China,2003,13(04):809. |
| [4] | 张新明,韩念梅,刘胜胆,宋丰轩,曾瑞林,黄乐瑜.7050铝合金厚板织构、拉伸性能及断裂韧性的不均匀性[J].中国有色金属学报,2010(02):202-208. |
| [5] | 陈军洲,甄良,戴圣龙,邵文柱,张宝友.晶粒形貌及织构对AA 7055铝合金板材不同厚度层屈服强度的影响[J].稀有金属材料与工程,2008(11):1966-1969. |
| [6] | Li Z H;Xiong B Q;Zhang Y A;Zhu B H Wang F Liu H W .Microstructural evolution of aluminum alloy 7B04 thick plate various thermal treatments[J].Transactions of Nonferrous Metals Society of China,2008,18(01):40. |
| [7] | 毛卫民;杨平;陈冷.材料织构分析原理与检测技术[M].北京:冶金工业出版社,2008:26. |
| [8] | Hirsch J;Lucke K .The application of quantitative texture analysis for investigating continuous an discontinuous recrystallization processed of Al-0.01Fe[J].Acta Metallurgica,1985,33(10):1927. |
| [9] | 李权,唐广波,刘正东,田志凌.板带热轧变形过程中的非均匀应变问题分析[J].钢铁研究学报,2007(06):52-55. |
| [10] | 袁望姣,吴运新.基于ANSYS的铝合金厚板淬火过程热力耦合数值分析[J].中南大学学报（自然科学版）,2010(06):2207-2212. |
| [11] | 张新明,邓运来,刘瑛,唐建国,周卓平.不同温度轧制多晶铝的微观组织与晶界分布[J].金属学报,2005(09):947-952. |
| [12] | Yun-Lai Deng;Li Wan;YongZhang .Evolution of microstructures and textures of 7050 Al alloy hot-rolled plate during staged solution heat-treatments[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2010(1):88-94. |
| [13] | 陈扬,赵刚,刘春明,左良.冷轧6111铝合金板材固溶处理后的再结晶织构[J].中国有色金属学报,2006(02):333-338. |
| [14] | Humphreys F J .The nucleation of recrystallization at second phase particles in deformed aluminium[J].Acta Metallurgica,1977,25(11):1323. |
| [15] | 姜锋,黄宏锋,赵娟,韦莉莉.不同温度退火处理后Al-Mg与Al-Mg-Sc合金板材的织构演变[J].中国有色金属学报,2010(12):2283-2290. |
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