کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1599914 | 1515854 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase equilibria of the long-period stacking ordered phase in the Mg-Ni-Y system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Phase equilibria in the Mg-rich Mg-Ni-Y system at 300, 400 and 500 °C have been experimentally investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), electron probe micro-analyzer (EPMA) and transmission electron microscopy (TEM). The results show that a long-period stacking ordered (LPSO) phase with 14H structure is thermodynamically stable in the Mg-Ni-Y system in a wide temperature range, but it dissolves varying from 492 to 559 °C depending on the alloy composition. The equilibrium 14H phase has a very limited solid solution range, and can be nearly regarded as a ternary stoichiometric compound with a formulae as Mg91Ni4Y5. The isothermal sections of the Mg-rich Mg-Ni-Y system at 300, 400 and 500 °C have been finally established, and a eutectic reaction, Liquid â α-Mg + 14H + Mg2Ni, has been determined occurring at 492 °C with a liquid composition about Mg84.8Ni12.0Y3.2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Intermetallics - Volume 57, February 2015, Pages 127-132
Journal: Intermetallics - Volume 57, February 2015, Pages 127-132
نویسندگان
Min Jiang, Shuai Zhang, Yuandong Bi, Hongxiao Li, Yuping Ren, Gaowu Qin,