کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1599448 1005097 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Atomic states and brittleness of hcp Ti3Al-ordered-type alloys
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Atomic states and brittleness of hcp Ti3Al-ordered-type alloys
چکیده انگلیسی
On the basis of the framework of systematic science of alloys (SSA), the basic information such as states, volumes, and potential energies of characteristic atoms in hcp Ti-Al system have been determined. The average atomic state of the hcp Ti3Al compound consisting of ψ4Ti and ψ0Al atoms is 0.75[Ar](3dn)0.573(3dc)2.1685(4Sc)0.972(4sf)0.3093 + 0.25[Ne](3Sc)1.32(3pc)1.19(3Sf+3pf)0.49. The brittleness of the ordered hcp Ti3Al compound has been discussed considering the fundamental factors, which are atomic states, bond networks, potential energy wave planes, and the ratio XT/XAl. The existence of more pc and more dc directional electrons in the hcp Ti3Al compound lead to considerable brittleness; From bond networks and potential energy wave planes, the hcp Ti3Al compound has poorer ductility than the pure hcp Ti metal and the pure fcc Al metal: The Al-rich hcp Ti3Al ordered type alloys have poorer ductility than the Ti-rich hcp Ti3Al ordered type allows.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Metallurgica Sinica (English Letters) - Volume 20, Issue 4, August 2007, Pages 270-276
نویسندگان
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