کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1573988 | 1514696 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructure evolution and mechanical properties of Al/Al-12%Si multilayer processed by accumulative roll bonding (ARB)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Microstructure evolution and mechanical properties of Al/Al-12%Si multilayer processed by accumulative roll bonding (ARB) Microstructure evolution and mechanical properties of Al/Al-12%Si multilayer processed by accumulative roll bonding (ARB)](/preview/png/1573988.png)
چکیده انگلیسی
In this study, multi-layered Al/Al-12%Si composites were produced by the accumulative roll bonding (ARB) at ambient temperature using commercial pure Al 1050 and Al-12%Si alloy sheets. The microstructures of Al and Al-12%Si alloy layers were characterized by scanning electron microscopy (SEM). Vickers microhardness and tensile tests were conducted to investigate mechanical properties of the composites. It was observed that by increasing ARB cycles, thickness of individual Al and Al-12%Si alloy sheets decreased; finally, Al-12%Si layers were necked at the second cycle. After the second ARB cycle, a multi-layered Al/Al-12%Si composite with homogeneously distributed Al-12%Si layers in aluminum matrix was produced. Si phase was refined from 65.6 to 25.57 µm in length and the Al grain size was reduced from 25 to 7.2 μm. The formation of Al3.21Si0.47 intermetallic phase after the second cycles was confirmed by X-ray diffraction. The results showed that the tensile strength increased up to 270 MPa after first cycle and dropped afterwards. Microhardness measurement indicated that hardness of individual layers increased continuously with increasing the ARB cycles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 647, 28 October 2015, Pages 127-135
Journal: Materials Science and Engineering: A - Volume 647, 28 October 2015, Pages 127-135
نویسندگان
Nahed El Mahallawy, Adel Fathy, Walaa Abdelaziem, Mohammed Hassan,