کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1576443 | 1514780 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of long period stacking ordered phase on the microstructure, texture and mechanical properties of extruded Mg-Y-Zn alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The effect of long period stacking ordered (LPSO) phase on the microstructure, texture and mechanical properties of extruded Mg-Y-Zn alloys with compositions of Mg98.5Y1Zn0.5, Mg95.5Y3Zn1.5 and Mg92.5Y5Zn2.5 (at%), was systematically investigated. The LPSO phases were aligned along the extrusion direction (ED) in the as-extruded Mg-Y-Zn alloys, and significantly enhanced the dynamic recrystallization (DRX) process during the hot extrusion. With the increase of LPSO phase, the degree of DRX process of Mg alloy was more completed, the growth of the DRXed grains resulted in the grain coarsening, and the following phenomena were also observed that the conventional basal fiber texture was remarkably weakened, a novel texture component of ã0Â 0Â 0Â 1ã//ED appeared in the Mg alloys with higher volume fraction of LPSO phase. The microhardness and tensile yield stress (TYS) of Mg-Y-Zn alloy was improved by LPSO phase, but the ductility was degraded. The strengthening effect of LPSO phase was dominant over that from the grain refinement and texture.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 563, 15 February 2013, Pages 177-183
Journal: Materials Science and Engineering: A - Volume 563, 15 February 2013, Pages 177-183
نویسندگان
L.B. Tong, X.H. Li, H.J. Zhang,