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Iranian Journal of Materials Science and Engineering، جلد ۶، شماره ۴، صفحات ۰-۰
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عنوان انگلیسی STUDY ON CORROSION PROPERTIES OF PLASMA NITRIDED PURE ALUMINIUM
چکیده انگلیسی مقاله Abstract: In this research plasma nitriding of pure aluminium and effect of iron elemental alloy on the formation and growth of aluminium nitride was investigated. Also corrosion properties of formed AlN were investigated. After preparation, the samples were plasma nitrided at 550oC, for 6, 9 and 12 h and a gas mixture of 25%H2-75%N2. The microstructure and phases analysis were investigated using scanning electron microscopy and X-ray diffraction analysis. Moreover corrosion resistance of samples was investigated using polarization techniques. The results showed that only a compound layer was formed on the surface of samples and no diffusion zone was detected. Dominant phase in compound layer was AlN. Scanning electron microscopy results showed that nitride layer has particulate structure. These nitrided particles have grown columnar and perpendicular to the surface. It was also observed that the existence of iron in the samples increases the nitrogen diffusion, thus growth rate of iron containing nitrides are higher than the others. Corrosion tests results showed that formation of an aluminium nitride layer on the surface of aluminium decreases the corrosion resistance of aluminium significantly. This is due to elimination of surface oxide layer and propagation of cracks in the formed nitride layer
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نویسندگان مقاله آرش یزدانی | arash yazdani


منصور سلطانیه | mansour soltanieh
iran university of science and technology

سازمان اصلی تایید شده: دانشگاه علم و صنعت ایران (Iran university of science and technology)

حسین آقاجانی | hossein aghajani
assistant professor, university of tabriz

سازمان اصلی تایید شده: دانشگاه تبریز (Tabriz university)

نشانی اینترنتی http://ijmse.iust.ac.ir/browse.php?a_code=A-10-3-109&slc_lang=en&sid=en
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Research paper
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