کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1450988 988753 2006 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of texture and grain size on work hardening and ductility in magnesium-based alloys processed by ECAP and rolling
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Influence of texture and grain size on work hardening and ductility in magnesium-based alloys processed by ECAP and rolling
چکیده انگلیسی

Equal channel angular pressing (ECAP) and large-strain hot rolling (LSHR) are widely used methods for refining the grain size in magnesium alloys. The hardening capability of the processed materials confers the resistance to develop tensile mechanical instabilities, therefore controlling ductility. In this work various magnesium alloys were processed using ECAP, LSHR and annealing treatments in order to control the texture and the grain size. Emphasis was laid upon the influence of these factors on work hardening behavior and dynamic recovery. In addition to the direct effect of texture through the change in the orientation factor for basal and prismatic slip, effects were found on dynamic recovery and the appearance of stage II of work hardening. The grain size refinement causes a strong decrease in the hardening rate. A contribution of grain boundary sliding to deformation gives a plausible explanation of these results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 54, Issue 16, September 2006, Pages 4247–4259
نویسندگان
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