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Iranian Journal of Materials Science and Engineering، جلد ۲۰، شماره ۳، صفحات ۱-۱۱
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عنوان انگلیسی Mechanical and Microstructural Evaluation of Recycled AA7075 Swarf
چکیده انگلیسی مقاله In this research, after pressing in a cylindrical mold, the AA 7075 alloy swarf was melted and cast in a wet sand mold. After rolling and cutting, sheets with two different thicknesses of 6 and 20 mm were obtained. The sheets after homogenization were solutionized at 485°C for 30 and 90 minutes, respectively, due to differences in thickness and thermal gradients. The solutionized samples were quenched in 3 polymer solutions containing 10, 30, and 50% Poly Alekylene Glycol. The results showed that melting, casting, rolling, and heat treatment of AA7075 alloy swarf similar properties to this alloy is achievable. Microstructural studies by optical microscopes (OM), Field Emission Scanning Electron Microscopy (FESEM), and X-ray diffraction (XRD) showed that by increasing the quenching rate after the solutionizing process, precipitation increases during aging. The tensile test results indicated that as the quench rate and internal energy increase, the diffusion driving force would increase the precipitation of alloying elements. Hence, this leads to an increase in hardness and reduction of its strain after aging.
کلیدواژه‌های انگلیسی مقاله Aluminum,7075,Swarf,Casting,Heat Treatment
نویسندگان مقاله | Mohammad Porhonar
Department of Materials Engineering, Islamic Azad University, Karaj Branch, Karaj, Alborz, Iran


| Yazdan Shajari
Materials and Energy Research Center, Meshkindasht, Alborz, Iran.


| Seyed Hossein Razavi
School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran, Iran.


| Zahra-Sadat Seyedraoufi
Department of Materials Engineering, Islamic Azad University, Karaj Branch, Karaj, Alborz, Iran
نشانی اینترنتی http://ijmse.iust.ac.ir/browse.php?a_code=A-10-57-7&slc_lang=en&sid=1
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کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Polymers
نوع مقاله منتشر شده Research Paper
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