کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7976300 | 1514692 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of Gd content on high temperature mechanical properties of Mg-Gd-Y-Zr alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of Gd content on high temperature mechanical properties of Mg-Gd-Y-Zr alloy Effect of Gd content on high temperature mechanical properties of Mg-Gd-Y-Zr alloy](/preview/png/7976300.png)
چکیده انگلیسی
In this study, the compositional dependence of the age hardening response and high temperature tensile properties of the Mg-xGd-3Y-0.5Zr (x=3, 6, 10, and 12 wt%) alloys are investigated. The amount of cuboid-shaped phases and βⲠprecipitates increased significantly with increasing the Gd content. The Mg-10Gd-3Y-0.5Zr alloy exhibited the maximum ultimate tensile strength at room temperature, while at higher temperatures the Mg-12Gd-3Y-0.5Zr alloy exhibited the maximum yield strength and ultimate tensile strength. The yield strength and ultimate tensile strength of the Mg-12Gd-3Y-0.5Zr alloy increased with the test temperature and showed its maximum at 150 °C, and then decreased as the temperature increased further. The Mg-12Gd-3Y-0.5Zr alloy maintained a high ultimate tensile strength of more than 300 MPa up to 250 °C. The superior high temperature tensile strength of the tested alloy is mainly associated with solution strengthening and precipitation hardening of the cuboid-shaped phases and βⲠprecipitates in Mg matrix. Especially, βⲠprecipitates can hinder the dislocation movement at high temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 651, 10 January 2016, Pages 840-847
Journal: Materials Science and Engineering: A - Volume 651, 10 January 2016, Pages 840-847
نویسندگان
H.R. Jafari Nodooshan, Guohua Wu, Wencai Liu, Guangling Wei, Yanlei Li, Song Zhang,