کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4986909 | 1454957 | 2016 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of roughness on the wear behavior of HVOF coatings dry sliding against a friction material
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of roughness on the wear behavior of HVOF coatings dry sliding against a friction material Effect of roughness on the wear behavior of HVOF coatings dry sliding against a friction material](/preview/png/4986909.png)
چکیده انگلیسی
WC-CoCr coatings on cast iron discs were prepared with different surface roughness and submitted to dry sliding wear tests against a commercial friction material using a pin-on-disc configuration. The effect of roughness on the friction and wear of the tribological system was evaluated. The pin wear rate increases with the coating roughness and becomes very high for an arithmetic average roughness, Ra, in excess of 1 μm. In contrast, the friction coefficient was found to increase as roughness decreased. The discs wear was anyway negligible. The experimental results were explained considering the characteristics of the friction layer that forms during sliding at the interface of the mating bodies in dependence of the initial roughness of the coatings. It is shown that the friction layer plays an important role in determining the relative contribution of the abrasive and adhesive interactions and, thereby, the resulting friction and wear behavior of the tribological system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volumes 368â369, 15 December 2016, Pages 326-334
Journal: Wear - Volumes 368â369, 15 December 2016, Pages 326-334
نویسندگان
Matteo Federici, Cinzia Menapace, Alessandro Moscatelli, Stefano Gialanella, Giovanni Straffelini,