کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1609787 | 1516269 | 2015 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Grain boundary precipitation induced by grain crystallographic misorientations in an extruded Al-Mg-Si-Cu alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The grain boundary precipitation induced by grain crystallographic misorientations in an extruded Al-Mg-Si-Cu alloy was investigated by electron back-scattering patterns and high resolution transmission electron microscopy. The results showed that compared with the recrystallization cube {1 0 0}ã0 0 1ã texture, the deformation brass {1 1 0}ã1 1 2ã texture prevailed in the microstructure. The brass texture mainly contributed for the formation of low angle grain boundaries, where the pre-βâ³/βⲠphases were formed during precipitation. The recrystallization cube texture predominately induced the formation of high angle grain boundaries, where the Qâ²/Q phases related to the corrosion were precipitated. And, high and low grain boundary was 23.5% and 76.5% proportion in the microstructure, respectively. Finally, it was believed that in order to improve the resistance to intergranular corrosion of alloy, the recrystallization cube {1 0 0}ã0 0 1ã texture should be inhibited as far as possible.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 624, 5 March 2015, Pages 27-30
Journal: Journal of Alloys and Compounds - Volume 624, 5 March 2015, Pages 27-30
نویسندگان
Wenchao Yang, Shouxun Ji, Zhou Li, Mingpu Wang,