کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1619874 | 1005726 | 2010 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
On the fabricability of a composite material containing the FCC matrix with embedded ductile B2 intermetallics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
An imaginary composite material containing a ductile Al-rich FCC matrix with embedded particles of ductile RMg intermetallics (R is a rare-earth metal) may possess high strength and formability thus making it suitable as a replacement for steel in automotive applications. Although different fabrications routes can be explored, a direct-chill casting is likely least expensive of them. A crucial question is whether it is possible to find such a composition of the ternary Al-R-Mg melt whose solidification would result in the desired Al/RMg structure. In order to answer the question, a thermodynamic model of the Al-La-Mg system was built using the CALPHAD method. The model, whose validity was demonstrated by calorimetric experiments, was then used to prove that the FCCÂ +Â LaMg composite material could not be produced via casting. Similar properties of rare-earth metals suggest that the conclusion based on the analysis of the particular Al-La-Mg case, will likely remain valid for other rare-earth elements.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 505, Issue 2, 3 September 2010, Pages 459-466
Journal: Journal of Alloys and Compounds - Volume 505, Issue 2, 3 September 2010, Pages 459-466
نویسندگان
Mehdi Hosseinifar, Dmitri V. Malakhov,