Microwave-assisted Sintering of Fe-Al₂O₃ Nanocomposites: Study of Corrosion and Wear Properties

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• 作者：M. Baghani ; M. Aliofkhazraei ; ^{khazraei@modares.ac.ir" class="auth_mail" title="E-mail the corresponding author} ; R. Poursalehi
• 关键词：Microwave sintering ; nanocomposite ; wear ; corrosion.
• 刊名：Procedia Materials Science
• 出版年：2015
• 出版时间：2015
• 年：2015
• 卷：11
• 期：Complete
• 页码：689-694
• 全文大小：974 K

文摘

In this study, the effects of Al₂O₃ nanopowder addition on microstructure, mechanical and corrosion properties of Fe-Al₂O₃ nanocomposites ball were investigated. The nanocomposites studied here contains 0, 10 and 20 vol.% of alumina nanoparticles. The powders were -milled for 12 h and compacted under cold pressure. The samples were sintered by microwave heating at 600 W and 15 min. Microstructure of samples was studied by scanning electron microscopy (SEM). The corrosion resistance of samples was evaluated by Tafel Polarization Technique in 3.5% NaCl solution and their wear was studied using the ball on disk test. The results show that distribution of alumina nanoparticles in the Fe matrix is uniform. Wear properties were improved as the amount of alumina nanoparticles increased. But the addition of Al₂O₃ nanopowder is not effective on the electrochemical corrosion resistance and microstructure of sintered samples.