کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1608518 1516245 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication of Al-based composites reinforced with in situ devitrified Al84Ni8.4Y4.8La1.8Co1 particles by hot pressing consolidation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Fabrication of Al-based composites reinforced with in situ devitrified Al84Ni8.4Y4.8La1.8Co1 particles by hot pressing consolidation
چکیده انگلیسی
In this study, Al84Ni8.4Y4.8La1.8Co1 particles reinforced Al-based composites were prepared by hot pressing sintering and subsequent hot extrusion. The glassy powders were produced by gas atomization and then employed to mechanical milling. After hot pressing sintering, the nano-scale intermetallic compounds precipitated from metallic glass matrix due to higher temperature than super-cooled liquid region. The mechanical properties of 2024 alloy were improved by addition of glassy particles. The ultimate compressive stress increased from 482 MPa for 2024 alloy to 545 MPa, 627 MPa and 735 MPa for composites with 20 w.t.% 40 w.t.% and 60 w.t.% glassy powders addition, respectively, together with considerable fracture strain ranging between 2.9% and 13.6%. And the mechanical properties could be predicted by using the Rule of Mixture, which predicts the mechanical properties of the bulks from the volume weighed average of the constituent properties.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 648, 5 November 2015, Pages 382-388
نویسندگان
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