کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10656276 | 1005481 | 2016 | 46 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Texture evolution and deformation activity of an extruded magnesium alloy: Effect of yttrium and deformation temperature
ترجمه فارسی عنوان
تکامل بافت و فعالیت تغییر شکل آلیاژ منیزیم اکسترود شده: اثر ییتیوم و دمای تغییر شکل
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کلمات کلیدی
آلیاژ منیزیم، تغییر شکل، بافت، دوقلو، لیز خوردن، اثر ایتریم،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
چکیده انگلیسی
Texture evolution and deformation activity of an extruded Mg-Zn-Mn (ZM31) alloy containing different amounts of yttrium subjected to hot compression along the extrusion direction at 200 °C and 300 °C were studied via electron backscatter diffraction (EBSD) and X-ray diffraction (XRD). A typical basal texture with (0001) planes and ã011¯0ã directions of most grains oriented parallel to the extrusion direction was observed. With increasing Y content, the basal texture was weakened and grain orientations became more random. The occurrence of extension twinning was characterized by the formation of {1¯21¯0}ã0001ã and {011¯0}ã0001ã textures, indicating that the c-axes in most grains were rotated towards the anti-compression direction. The maximum intensity of twinned textures decreased with increasing deformation temperature, and the extent of decrease was less significant in the alloy with a higher amount of Y. Visco-plastic self-consistent simulation, along with EBSD and XRD analyses, revealed that with increasing deformation temperature the relative contribution of non-basal slip increased and the relative contribution of extension twinning decreased. With increasing Y content the relative contribution of pyramidal slip increased, while the relative contribution of basal slip decreased.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 688, Part B, 15 December 2016, Pages 270-284
Journal: Journal of Alloys and Compounds - Volume 688, Part B, 15 December 2016, Pages 270-284
نویسندگان
N. Tahreen, D.F. Zhang, F.S. Pan, X.Q. Jiang, D.Y. Li, D.L. Chen,