کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7990576 | 1516129 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structure-property orientation relationship of a γ/α2/Ti5Si3 in as-cast Ti-45Al-2Nb-0.7Cr-0.3Si intermetallic alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Structure-property relationship of the as-cast γ-Ti-45Al-2Nb-0.7Cr-0.3Si based intermetallic alloy was examined. The phases stable at room temperature in the alloy were γ/α2/Ti5Si3, respectively; while their crystal structures were described by means of chemical formulas, Pearson's number, space groups, lattice parameters, atomic positions and occupancy numbers using a Vienna ab initio simulation package (VASP) software for materials design. Moreover, high resolution electron backscatter diffraction (HSEBSD) was used to analyse the orientation relationship of both the as-cast (β-solidifying) and heat-treated (α-solidifying) microstructural phases. The results showed that the formation of γ/α2/Ti5Si3 follows the Blackburn orientation relationship (BOR): (β-solidifying) {110}β//{0001}α and <111>β//<2â¾1â¾10>α, and for (α-solidifying) = (111)γ || (0001)α and <1â¾10]γ || <11â¾20>α.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 765, 15 October 2018, Pages 690-699
Journal: Journal of Alloys and Compounds - Volume 765, 15 October 2018, Pages 690-699
نویسندگان
M.N. Mathabathe, A.S. Bolokang, G. Govender, R.J. Mostert, C.W. Siyasiya,