کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5456380 1514661 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of pre-recovery on the subsequent recrystallization and mechanical properties of a twin-roll cast Al-Mn alloy
ترجمه فارسی عنوان
تأثیر پیش از بازیابی بر روی کریستال شدن و خواص مکانیکی آلومینیوم دوقلو
کلمات کلیدی
آلیاژهای آلومینیوم، بازپرداخت، هسته، پیش بازیابی پالایش دانه، ناهمسانگردی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
چکیده انگلیسی
A two-step annealing treatment consisting of a pre-recovery process (450 °C/5 h) and a following recrystallization process (530 °C/15 h) was developed for a cold-rolled twin-roll cast 3003 alloy (Al-1.13Mn-0.45Fe-0.1Si in wt%) sheet. The effects of pre-recovery on recrystallization behavior and mechanical properties were systematically studied. Our results show that fine quasi-equiaxed grains together with very weak ND-rotated cube (001) <310> texture was successfully obtained using the proposed two-step annealing treatment. It is found that pre-recovery stimulates the formation of precipitates-free zones around constituent particles. Within such precipitates-free zones, substantial random oriented sub-grains can readily grow to critical size for nucleation, which contribute to enhanced nucleation without preferential orientation. This is the reason for the formation of fine grains as well as a weak texture in the two-step annealed sheet. The sheets that were subject to this two-step annealing also exhibits an extremely weak mechanical anisotropy with a Δr value 0.03, much lower than that of sample (0.31) subjected to a single-step annealing at 530 °C for 15 h.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 682, 13 January 2017, Pages 63-72
نویسندگان
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