کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1599420 | 1005095 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructure of binary Mg-Al eutectic alloy wires produced by the Ohno continuous casting process
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Directionally solidified binary Mg-Al eutectic alloy wires of approximately 5 mm in diameter were produced by the Ohno continuous casting (OCC) process and the mi-crostructure was examined. It was found that the wires possess obvious unidirectional growth characteristic along its axial direction. The micro structure consists of parallel columnar grains that resulted from the competitive growth of equiaxed grains solidified on the head of dummy bar. Each columnar grain comprises regular eutectic αa-Mg and β-Mg17Al12 phases, which grew along the axial direction of the wires. The morphology of the eutectic is mainly lamellar, meanwhile rod eutectic exists. The formation of rod eutectic was attributed to the “bridging effect” caused by incidental elements in the alloy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Metallurgica Sinica (English Letters) - Volume 21, Issue 4, August 2008, Pages 275-281
Journal: Acta Metallurgica Sinica (English Letters) - Volume 21, Issue 4, August 2008, Pages 275-281
نویسندگان
Z.M. Zhang, T. Lii, C.J. Xu, X.F. Guo,