کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7984113 | 1514783 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Application of powder metallurgy and hot rolling processes for manufacturing aluminum/alumina composite strips
ترجمه فارسی عنوان
استفاده از متالورژی پودر و فرایندهای نورد گرم برای ساخت آلومینیوم / آلومینای نوار کامپوزیت
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کلمات کلیدی
متالورژی پودر، آلیاژ مکانیکی خلاء داغ فشار دادن، نورد گرم ویژگی های مکانیکی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
In this study, aluminum matrix composites (AMC) with 2, 4, 6 and 10Â wt% alumina were produced using powder metallurgy (PM), mechanical milling (MM) and vacuum hot pressing (VHP) techniques; then, this was followed by the hot-rolling process. During hot rolling, AMCs with 6 and 10Â wt% Al2O3 were fractured whereas strip composites with 2 and 4Â wt% Al2O3 were produced successfully. Microstructure and mechanical properties of the samples were investigated by optical and scanning electron microscopes and tensile and hardness tests, respectively. Microscopic evaluations of the hot-rolled composites showed a uniform distribution of alumina particles in the aluminum matrix. It was found that with increasing alumina content in the matrix, tensile strength (TS) and hardness increased and the percentage of elongation also decreased. Scanning electron microscope (SEM) was used to investigate aluminum/alumina interfaces and fracture surfaces of the hot rolled specimens after tensile test. SEM observations demonstrated that the failure mode in the hot-rolled Al-2Â wt% Al2O3 composite strips is a typical ductile fracture, while the failure mode was shear ductile fracture with more flat surfaces in Al-4Â wt% Al2O3 strips.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 560, 10 January 2013, Pages 567-574
Journal: Materials Science and Engineering: A - Volume 560, 10 January 2013, Pages 567-574
نویسندگان
Majed Zabihi, Mohammad Reza Toroghinejad, Ali Shafyei,