کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1656774 | 1517593 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of treatment time in the Mg(OH)2/Mg-Al LDH composite film formed on Mg alloy AZ31 by steam coating on the corrosion resistance
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of treatment time in the Mg(OH)2/Mg-Al LDH composite film formed on Mg alloy AZ31 by steam coating on the corrosion resistance Effect of treatment time in the Mg(OH)2/Mg-Al LDH composite film formed on Mg alloy AZ31 by steam coating on the corrosion resistance](/preview/png/1656774.png)
چکیده انگلیسی
The corrosion resistant films were fabricated on Mg alloy AZ31 substrates by steam coating method using Al(NO3)3·9H2O aqueous solution as a steam source. The treatment temperature was maintained at 433 K, while the treatment time was varied at 3, 5, 7 and 9 h. X-ray diffraction (XRD) analysis demonstrated that the coated films were composed of a mixed structure of Mg(OH)2 and Mg-Al layered double hydroxide (Mg-Al LDH) phases. As revealed by the scanning electron microscopy (SEM) observation, the surface of coated films had a good uniformity of changing treatment times. The deposition rate increased exponentially with increasing treatment time. Fourier transform infrared (FT-IR) spectra showed that carbonate and nitrate ions were co-existed in the interlayer of Mg-Al LDH. The potentiodynamic polarization curves of the film coated for 7 h exhibited the lowest corrosion current density, which was almost four orders of magnitude lower than that of bare AZ31. The enhanced corrosion resistance was well consistent with the increase of Mg-Al LDH content in the films.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 286, 25 January 2016, Pages 172-177
Journal: Surface and Coatings Technology - Volume 286, 25 January 2016, Pages 172-177
نویسندگان
Naosumi Kamiyama, Gasidit Panomsuwan, Erina Yamamoto, Tomohito Sudare, Nagahiro Saito, Takahiro Ishizaki,