کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
614390 1454814 2015 32 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tribocorrosion behaviour of hot pressed CoCrMo−HAP biocomposites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Tribocorrosion behaviour of hot pressed CoCrMo−HAP biocomposites
چکیده انگلیسی
Bioactivity of CoCrMo can be enhanced by incorporation of hydroxyapatite (HAP), but the poor mechanical properties of HAP is the most serious hindrance for its application on load-bearing implants, especially when exposed to corrosion and wear, simultaneously. Thus, the present work aims to investigate the tribocorrosion behaviour of CoCrMo−HAP composites. The tribocorrosion tests were performed under open circuit potential (OCP) in 8 g/l NaCl at 37 ºC by using a ball-on-plate tribometer. Results suggested that HAP particle addition increased the corrosion rate due to localized corrosion taking place on the pore sites near the matrix/reinforcement interface. However, under tribological action, composite samples presented relatively lower tendency to corrosion and lower coefficient of friction values.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tribology International - Volume 91, November 2015, Pages 221-227
نویسندگان
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