کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1636601 | 1516983 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase equilibria in Mg-rich corner of Mg-Ca-RE (RE=Gd, Nd) systems at 400 °C
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
The phase equilibria in Mg-rich corner of Mg-Ca-Gd and Mg-Ca-Nd ternary systems at 400 °C were determined through the equilibrated alloy method by using XRD, SEM, EPMA and DSC. Partial isothermal sections in Mg-rich corner of Mg-Ca-Gd and Mg-Ca-Nd ternary systems at 400 °C were constructed from 13 alloys. A three-phase region of α-Mg, Mg41RE5 and Mg2Ca was determined in both ternary systems. It is formed by a similar ternary eutectic reaction Lâα-Mg+Mg2Ca+Mg41RE5 at 499.6 °C and 505.6 °C, respectively. It is found that the maximum solubility of Ca in Mg5Gd is 3.68% (molar fraction) and 3% of Gd can be dissolved in Mg2Ca in the Mg-Ca-Gd system at 400 °C. While in the Mg-Ca-Nd system the maximum solubility of Ca in Mg41Nd5 is 3.57% and 1.24% of Nd can be dissolved in Mg2Ca at 400 °C. Other three-phase equilibria existing in Mg-rich corner of Mg-Ca-Gd system are α-Mg+Mg5Gd+T and Mg5Gd+Mg2Ca+T and the three-phase equilibrium in Mg-rich corner of Mg-Ca-Nd system is Mg3Nd+Mg2Ca+ Mg41Nd5.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 23, Issue 4, April 2013, Pages 881-888
Journal: Transactions of Nonferrous Metals Society of China - Volume 23, Issue 4, April 2013, Pages 881-888
نویسندگان
Hou-jun FEI, Guang-long XU, Li-bin LIU, Hong BO, Li-jun ZENG, Cui-ping CHEN,