کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1576488 1514782 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructure, mechanical properties and fracture behavior of peak-aged Mg34Y32Nd31Gd alloys under different aging conditions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Microstructure, mechanical properties and fracture behavior of peak-aged Mg34Y32Nd31Gd alloys under different aging conditions
چکیده انگلیسی
The morphology of precipitates and grain boundaries of peak-aged Mg34Y32Nd31Gd alloys under different aging conditions were analyzed by transmission electron microscopy (TEM), and the mechanical properties and fracture behavior of the studied alloys both at room and elevated temperatures were investigated. The β′′ and β′ phases are the main precipitates of the alloys peak-aged at 200 °C and 225 °C, while the alloy peak-aged at 250 °C mainly consists of β1 and β phases. Discussion on relationship between precipitates and mechanical properties, fracture behavior reveals that the precipitates' density, kind and arrangement are the dominating factors influencing the mechanical properties, and the combined influence of grain boundary structure and precipitation hardening determine the fracture mechanism of Mg34Y32Nd31Gd alloys.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 561, 20 January 2013, Pages 303-311
نویسندگان
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