کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5368777 | 1388409 | 2010 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dry sliding wear behaviour of magnesium oxide and zirconium oxide plasma electrolytic oxidation coated magnesium alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Two types of PEO coatings, one consisting of magnesium oxide (MgO) and the other comprising zirconium oxide (ZrO2) as the main phase composition were produced on AM50 magnesium alloy from alkaline and acidic electrolytes, respectively. The ZrO2 coating was found to be spongy and thicker with a higher roughness, whilst the relatively more compact MgO coating was having contrasting features. In the dry sliding oscillating wear tests under two different loads viz., 2Â N and 5Â N, the ZrO2 coating exhibited a very poor wear resistance. The MgO coating showed an excellent resistance to sliding wear under 2Â N load; however, the load bearing capacity of the coating was found to be insufficient to resist the wear damage under 5Â N load. The higher specific wear rates of the MgO coating under 5Â N load and that of the ZrO2 coating under 2Â N and 5Â N loads were attributed to the poor load bearing capacity and a three-body-abrasive wear mechanism.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 256, Issue 10, 1 March 2010, Pages 3265-3273
Journal: Applied Surface Science - Volume 256, Issue 10, 1 March 2010, Pages 3265-3273
نویسندگان
P. Bala Srinivasan, J. Liang, C. Blawert, W. Dietzel,