کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1503364 993468 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructures of extruded Mg–12Gd–1Zn–0.5Zr and Mg–12Gd–4Y–1Zn–0.5Zr alloys
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Microstructures of extruded Mg–12Gd–1Zn–0.5Zr and Mg–12Gd–4Y–1Zn–0.5Zr alloys
چکیده انگلیسی

The microstructure characteristics of two extruded magnesium alloys, Mg–12Gd–1Zn–0.5Zr (GZ121) and Mg–12Gd–4Y–1Zn–0.5Zr (GWZ1241), were studied with optical microscopy, scanning electron microscopy- and transmission electron microscopy-energy-dispersive X-ray analysis. Dynamic recrystallized fine grains were observed in the two extruded alloys. Coarse rod-shaped or developed dendrite eutectic phases Mg5(Zn0.5Gd0.5) coexisted in the alloy GZ121. Compared with the alloy G Z121, the size and morphology of the eutectic phases in extruded GWZ1241 alloy changed remarkably. The composition of eutectic phases in the alloy GWZ1241 is like Mg5(Zn0.5Gd0.4Y0.1). Two non-equilibrium phases, lamellar-shaped MgGdZn5 and block-shaped Mg3(Gd0.5,Y0.5), are found in GWZ1241 alloy.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 56, Issue 2, January 2007, Pages 137–140
نویسندگان
, , , , , , ,