کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8012109 1516938 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hot tearing susceptibility of Mg-xZn-2Y alloys
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Hot tearing susceptibility of Mg-xZn-2Y alloys
چکیده انگلیسی
Effects of Zn content (0, 0.5%, 1.5% and 4.5%) on the hot tearing characteristics of Mg-2%Y alloy were studied in a constrained rod casting (CRC) apparatus attached with a load cell and data acquisition system. The experimental results indicate that the hot tearing susceptibility (HTS) is affected by the content of Zn. The Zn-free base alloy shows the lowest HTS. The HTS of Mg-xZn-2Y alloys increases with increasing Zn content, reaches the maximum at 1.5% Zn, and then decreases with further Zn addition. The high HTS observed in the alloy with 1.5% Zn is attributed to its high force release rate and large force drop during solidification. The hot cracks of casting are initiated and propagate along the dendritic or grain boundaries. The predictions of HTS of Mg-xZn-2Y alloys using ProCAST software are in good agreement with the results obtained by experimental measurements.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 26, Issue 12, December 2016, Pages 3115-3122
نویسندگان
, , , , , , ,