کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1615529 1516353 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermo-mechanical study of rapidly solidified amorphous alloys Al85Ni5Co2RE8
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Thermo-mechanical study of rapidly solidified amorphous alloys Al85Ni5Co2RE8
چکیده انگلیسی

The thermal stability and viscous flow behavior of three quaternary amorphous alloys Al85Ni5Co2RE8 (RE = Ce, Gd, U) are studied. The viscosity experimental results are interpreted on the basis of the free volume model (FVM). The values of the model parameters obtained are used for estimation of the glass forming ability (GFA) in terms of Angell parameter, and the fracture strength of the alloys based on its correlation with the glass transition temperature. The results show that the amorphous alloys Al85Ni5Co2RE8 (RE = Ce, Gd, U) posses an excellent fracture strength (1.3–1.5 GPa). The replacement of RE by U leads to best fracture strength and highest GFA.


► U is a good glass former element in Al-based metallic glasses and can replace the usual RE elements.
► Our thermo-mechanical measurements enables determining the true glass transition and fragility parameters.
► Good precursor ribbons for preparing bulk samples by hot consolidation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 540, 5 November 2012, Pages 192–197
نویسندگان
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