کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1612149 | 1516305 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of Zn addition on the glass forming ability and mechanical properties of Mg-Cu-Gd bulk metallic glasses
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The effects of Zn addition on the glass forming ability (GFA) and mechanical properties are investigated in Mg65âxZnxCu25Gd10 (x = 0, 3, 5, 8 at.%) alloys by X-ray diffractometer (XRD), differential scanning calorimeter (DSC) and mechanical property tests. Thermal analysis shows that with the increasing of Zn content from 0 to 8 at.%, the supercooled liquid regions of Mg65âxZnxCu25Gd10 alloys decrease from 68 K to 31 K, indicating the obvious deterioration in their GFA. On the other hand, however, the mechanical property tests demonstrate that the appropriate addition of Zn (5 at.%) in Mg65âxZnxCu25Gd10 alloys greatly improves the mechanical strength, increases their compressive fracture strength and Vickers hardness from 648 MPa and 257 Hv to 754 MPa and 286 Hv, respectively. In addition, the fracture surface morphologies have been characterized by scanning electron microscopy (SEM) and the dominant fracture behaviors of the as-cast alloys have been explained as well.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 588, 5 March 2014, Pages 59-63
Journal: Journal of Alloys and Compounds - Volume 588, 5 March 2014, Pages 59-63
نویسندگان
G.B. Liu, P. Gao, S.Q. Yang, Z. Xue, M.L. Zhang,