کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9679575 | 1455084 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of crystallographic orientation on the friction and wear properties of MoxSy-Ti coatings by pulsed-dc in nitrogen and humid air
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
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چکیده انگلیسی
This work reports on the structural and wear properties of MoxSy-Ti films, deposited on D2, 52100, and 440C steel substrates by pulsed-dc magnetron sputtering. A closed field unbalanced magnetron sputter ion plating system was used for the deposition process. The mechanical and tribological properties of MoxSy-Ti coated composites onto selected steel substrates were characterized using microhardness test, friction-wear test in atmospheric conditions and in dry nitrogen. The X-ray diffraction (XRD) was used to determine the phase structure. Structural analysis was performed using SEM-EDS. MoxSy-Ti films showed a very dense structure with pronounced basal plane (0Â 0Â 2) orientation, which showed the lowest friction coefficient (0.022) in dry nitrogen. The coefficient of friction can be attributed to the oxidation of MoS2 at the wear track to form MoOx that is known to cause an increase in the friction coefficient. In humid air, an oxidative environment, the films had higher coefficient of friction (0.07), and lower wear life (142Â 500 passes with 2.11Â ÃÂ 10â6Â mm3/NÂ m wear rate) than in dry nitrogen, where the wear life was over 250Â 000 passes with the lowest wear rate of 3Â ÃÂ 10â8Â mm3/NÂ m.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volume 258, Issues 5â6, February 2005, Pages 852-860
Journal: Wear - Volume 258, Issues 5â6, February 2005, Pages 852-860
نویسندگان
Ihsan Efeoglu, Ferhat Bulbul,