کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1634090 | 1516774 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of Al-15Zr Master Alloy and Extrusion Process on Microstructure and Mechanical Properties of Al-6%Mg 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
In current research different amounts of Al-15Zr master alloy were added to Al-6%Mg alloy to obtain various Zr concentrations (0.01, 0.03, 0.05, 0.1, 0.2, 0.3% weight percent). The microstructural study was carried out on Al-6%Mg extruded alloy. It was found that with the increase of Al-15Zr master alloy, Al (α) matrix morphology was changed from dendritic to equiaxed grains due to the suppression of grain growth by the formation of homogeneous Zr containing disperoids at grain boundary. The grain size of as-cast alloys was significantly decreased by adding Al-15Zr master alloy to same extent. An increase in the amount of Zr content resulted in improvement of ultimate tensile strength (UTS) and elongation (%El) values. Fractographic examinations of the alloy showed a ductile mode of fracture via introducing more homogenous fine dimples after grain refining process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Procedia Materials Science - Volume 11, 2015, Pages 438-443
Journal: Procedia Materials Science - Volume 11, 2015, Pages 438-443
نویسندگان
H. Hosseiny, M. Emamy, G. Ashuri,