کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1638205 1517010 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enhancement of ductility in high strength Mg-Gd-Y-Zr alloy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Enhancement of ductility in high strength Mg-Gd-Y-Zr alloy
چکیده انگلیسی
A high strength GW94 alloy with fully recrystallized microstructure and equiaxed ultrafine grains of submicron size was produced by multiaxial forging and ageing. The alloy exhibits an ultimate tensile strength of 377 MPa, proof stress of 295 MPa and elongation to failure of 21.7%. The ductility is improved in comparison with that of the conventional extrusion processing. Superplastic ductility is achieved in tensile testing at 573 K with a maximum elongation of 450%. These high ductility and high strength are attributed to the coexistence of fully recrystallized grains and nanoscale Mg5(Gd, Y) particles dynamically precipitated at grain boundaries.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 21, Issue 4, April 2011, Pages 863-868
نویسندگان
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