晶粒长大对高纯Al {111}/{111}近奇异晶界的影响

冯小铮, 王卫国, Gregory S. Rohrer, 陈松, 洪丽华, 林燕, 王宗谱, 周邦新

Effects of Grain Growth on the {111}/{111} Near Singular Boundaries in High Purity Aluminum

FENG Xiaozheng, WANG Weiguo, Gregory S. Rohrer, CHEN Song, HONG Lihua, LIN Yan, WANG Zongpu, ZHOU Bangxin

图7 再结晶高纯Al在500℃保温期间具有<111>/θ取向差关系不相邻晶粒长大相遇形成{111}/{111}近奇异晶界离线原位OIM及重叠极图迹线分析

Fig.7 Off-line in situ orientation imaging microscopies and grain boundary trace analyses showing the formation of the {111}/{111} near singular boundaries by the encountering of two nonadjacent growing grains having <111>/θ misorientation in the high purity aluminum heated at 500oC (a-c) encountering of grain 1 and grain 8 at 2 min (a), 3 min (b), and 5 min (c), respectively (e-g) encountering of grain 15 and grain 22 at 1 min (e), 2 min (f), and 4 min (g), respectively (i-k) encountering of grain 26 and grain 37 at 5 min (i), 6 min (j), and 7 min (k), respectively (d, h, l) overlapped {111} pole figures of grain 1 and grain 8 in Fig.7c (d), grain 15 and grain 22 in Fig.7g (h), and grain 26 and grain 37 in Fig.7k (l), respectively, showing the GB trace normals are passing through the overlapped {111} poles, indicating they have {111}/{111} GBICs