کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7990777 | 1516131 | 2018 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of 0.5â¯wt% Ce addition on microstructures and mechanical properties of a wrought Mgâ8Gdâ1.2Znâ0.5Zr alloy
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Effects of 0.5â¯wt% cerium (Ce) addition on microstructures and mechanical properties of a wrought Mgâ8Gdâ1.2Znâ0.5Zr alloy were thoroughly investigated in this work. The results indicate that 0.5â¯wt% Ce addition has slight refinement on the as-cast grains and results in a lattice expansion of the dominant intermetallic phase Mg3RE. After extrusion, 0.5â¯wt% Ce addition leads to higher level of recrystallization and finer dynamic recrystallization (DRX) grains and non-recrystallization stripes. In addition, there are much more dynamic precipitates on the DRX grain boundaries in the alloy with Ce addition, and the crystal structure (Mg12RE) is different from those (Mg5Gd) in the alloy with free Ce addition. Under peak-aging condition, 0.5â¯wt% Ce addition significantly changes the precipitates in the DRX grains from basal γⲠphase to prismatic βⲠphase. As a result, the as-extruded Mgâ8Gdâ1.2Znâ0.5Zr alloy with 0.5â¯wt% Ce addition owns higher strength and more obvious precipitation hardening response than the alloy with free Ce addition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 763, 30 September 2018, Pages 120-133
Journal: Journal of Alloys and Compounds - Volume 763, 30 September 2018, Pages 120-133
نویسندگان
Baishun Li, Kai Guan, Qiang Yang, Xiaodong Niu, Dongdong Zhang, Zijian Yu, Xuhu Zhang, Zongmin Tang, Jian Meng,