کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1575794 1514760 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effect of double extrusion on the microstructure and mechanical properties of Mg-Zn-Ca alloy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
The effect of double extrusion on the microstructure and mechanical properties of Mg-Zn-Ca alloy
چکیده انگلیسی
The Mg-4.50Zn-1.13Ca (wt%) alloy was subjected to double extrusion, and the microstructure and mechanical properties of the extruded alloys were investigated. Double extrusion refined the microstructure significantly, resulting in the enhancement of mechanical properties of the double-extruded alloys compared with the single-extruded alloy. The yield strength of the single-extruded alloy was 173 MPa, while the value was increased to 320 MPa and 370 MPa after subsequent second extrusion at 300 °C and 250 °C, respectively. The second extrusion ratio had little effect on the microstructure and mechanical properties of the double-extruded alloys, while grain size was decreased and strength was increased with the decrease of double extrusion temperature. The double-extruded Mg-Zn-Ca alloy exhibited superior elevated temperature mechanical properties, which was attributed to the fine stable Ca2Mg6Zn3 intermetallic compound particles dispersed in the alloy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 583, 20 October 2013, Pages 69-77
نویسندگان
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