کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1576422 | 1514780 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Forging induces changes in the formability and microstructure of extruded Mg96Zn2Y2 alloy with a long-period stacking order phase
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We examined the effects of the processing temperature and the grain size on the ductility and flow stress of extruded Mg96Zn2Y2 (atom%) alloy by upsettability testing at various forging temperatures and for various grain sizes of the α-Mg phase. The extruded Mg96Zn2Y2 alloy showed a forging limit as a reduction in height of 65% at forging temperatures of 573-673 K and an initial strain rate of 3.5Ã10â1 sâ1. The formability of LPSO-type Mg alloys can be improved by the production of an α-Mg phase with small grains and a LPSO phase with kink bands with a large-angle tilt. The hard LPSO phase has a bending angle of about 100° at the grain boundaries and has a large deformability. Forging of about 10% is necessary for the formation of kink bands in the LPSO phase, and these kink bands deform continuously with increasing plastic deformation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 563, 15 February 2013, Pages 21-27
Journal: Materials Science and Engineering: A - Volume 563, 15 February 2013, Pages 21-27
نویسندگان
Masafumi Noda, Ryo Matsumoto, Yoshihito Kawamura,