Interpretation of annealing texture changes of severely deformed Al-Mg-Si alloy
Interpretation of annealing texture changes of severely deformed Al-Mg-Si alloy
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DOI：
10.1016/j.jallcom.2016.06.101
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发表时间：
2016-12
影响因子：
6.2
通讯作者：
K. Hamad;H. Yang;Y. Ko
中科院分区：
文献类型：
--
作者：
K. Hamad;H. Yang;Y. Ko
本研究探讨了严重变形的Al-Mg-Si合金退火织构变化的解释。为此目的，在448至623 K的温度范围内退火1小时的Al-Mg-Si合金样品严重变形的差速轧制（DSR）过程中，辊速度比为1：4的下辊和上辊，分别。变形样品的晶粒取向图显示了具有属于轧制（铜、S和黄铜）和剪切织构（E、F和H）的取向的晶粒的高分数。在退火温度高于498 K，铜和S取向的晶粒被保留，而黄铜和剪切织构成分减少。在ReNuc再结晶模型的背景下解释了这种现象，其中假设成核发生在β-纤维组分之间，并结合取向依赖的回复。
This study investigated the interpretation of annealing texture changes of severely deformed Al-Mg-Si alloys. For this purpose, the Al-Mg-Si alloy samples severely deformed by a differential speed rolling (DSR) process at a roll speed ratio of 1:4 for the lower and upper rolls, respectively, were annealed at temperatures ranging from 448 to 623 K for 1 hour. Grain orientation maps of the deformed sample revealed the high fraction of the grains with orientations belonging to rolling (Copper, S, and Brass) and shear textures (E, F, and H). At annealing temperatures above 498 K, Copper and S oriented grains were retained whilst Brass and shear texture components were diminished. This phenomenon was explained in the context of ReNuc recrystallization model wherein nucleation was assumed to occur between β-fiber components in conjunction with the orientation-dependent recovery.