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
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 〈011¯0〉 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}〈0001〉 and {011¯0}〈0001〉 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
نویسندگان
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