کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9803285 1516464 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of Nb content on the microstructure and mechanical properties of Zr-Cu-Ni-Al-Nb glass forming alloys
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Effect of Nb content on the microstructure and mechanical properties of Zr-Cu-Ni-Al-Nb glass forming alloys
چکیده انگلیسی
(Zr65Al10Ni10Cu15)100−xNbx glass forming alloys with Nb contents ranging from 0 to 15 at.% were prepared by water-cooled copper mould cast. The alloys with different Nb contents exhibited different microstructures and mechanical properties. Unlike the monolithic Zr65Al10Ni10Cu15 bulk metallic glass, only a few primary bcc β-Ti phase dendrites were found to distribute in the glassy matrix of the alloys with x = 5. For alloys with x = 10, more β-phase dendrites forms, together with quasicrystalline particles densely distributed in the matrix of the alloys. For alloys with x = 15, the microstructure of the alloy is dominated by a high density of fully developed β-phase dendrites and the volume fraction of quasicrystalline particles significantly decreases. Room temperature compression tests showed that the alloys with x = 5 failed at 1793 MPa and exhibited an obvious plastic strain of 3.05%, while the other samples all failed in a brittle manner. The ultimate fracture strengths are 1793, 1975 and 1572 MPa for the alloys with x = 0, 10 and 15 at.% Nb, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 403, Issues 1–2, 10 November 2005, Pages 239-244
نویسندگان
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