کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5352097 | 1503678 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Plasma electrolytic oxidation of 2024-T3 aluminum alloy and investigation on microstructure and wear behavior
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
In this study, plasma electrolytic oxidation has been used to improve wear resistance of 2024-T3 aluminum alloy. An electrolyte containing available and inexpensive constituents was used. A conventional DC source with low applied voltage was employed. It was found that with increase in oxidation treatment time the micro-hardness of the coating were decreased while the friction coefficient increased. It was seen that deposition at optimum treatment time of 10 min resulted in the highest micro-hardness and lowest friction coefficient and weight loss. The surface and cross-sectional morphology indicated that the coatings have a dense structure with low porosity and without any cracking. Also, the presence of wear scars on the worn surface morphology demonstrates that the three-body rolling was the main wear mechanism for coated specimen. The phase analysis of the coating indicated that the coating was formed mainly from α-Al2O3, ɤ-Al2O3, Al3.21Si0.47 and small amounts of amorphous phases. The presence of glycerin in the electrolyte composition resulted in not only stabilizing the solution but also achieving of a dense and uniform coating without any cracking.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 286, 1 December 2013, Pages 212-219
Journal: Applied Surface Science - Volume 286, 1 December 2013, Pages 212-219
نویسندگان
Mehdi Javidi, Hossein Fadaee,