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Iranian Journal of Materials Science and Engineering، جلد ۱۳، شماره ۲، صفحات ۴۴-۴۹
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی CORROSION RESISTANT SOL–GEL COATING ON 2024-T3 ALUMINUM
چکیده انگلیسی مقاله The inherent reactivity of the Al–Cu alloys is such that their use for structural, marine, and aerospace components and structures would not be possible without prior application of a corrosion resistance system. Historically these corrosion resistance coatings were based on the use of chemicals containing Cr (VI) compounds. Silane coatings are of increasing interest in industry due to their potential application for the replacement of current toxic hexavalent chromate based treatments. In this study, hydrophobic coating sol was prepared with methyltriethoxysilane (MTES), methanol (MeOH), and water (as 7M NH4OH) at a molar ratio of 1:25:4.31 respectively. The coatings were applied by a dip-technique to 2024-T3 Al alloy, and subsequently cured at room temperature and there after heat treated in an oven at 150°C. The anticorrosion properties of the coatings within 3.5 wt% NaCl solution were studied by Tafel polarization technique. The sol–gel coating exhibited good anticorrosion properties providing an adherent protection film on the Al 2024-T3 substrate. The surface properties were characterized by water contact angle measurement, scanning electron microscopy (SEM), and the composition was studied by Fourier transform infrared spectroscopy (FTIR).
کلیدواژه‌های انگلیسی مقاله sol- gel , Al–Cu alloys, hydrophobic, anticorrosion
نویسندگان مقاله s یزدانی | s. yazdani


s جوادپور | s. javadpour


sh مهدی زاده نادری | sh mehdizadeh naderi


m جاویدی | m. javidi


نشانی اینترنتی http://ijmse.iust.ac.ir/browse.php?a_code=A-10-1061-1&slc_lang=en&sid=en
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کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده گروه سطح پوشش و خوردگی
نوع مقاله منتشر شده Research paper
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