کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
617104 1454975 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mapping of impact-abrasive wear performance of WC-Co cemented carbides
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Mapping of impact-abrasive wear performance of WC-Co cemented carbides
چکیده انگلیسی
A reliable evaluation of the wear resistance of materials used in conditions of combined impact and abrasion is of a paramount importance for industrial applications. A new tribo-device for studying impact-abrasive wear performance of materials was worked out. The specimen is pressed against a rotating steel wheel with abrasive being fed by gravity between them. The generator is supplying the tribosystem with impacts of predefined energy in a range of 0-19 J and a frequency up to 55 Hz. Cemented carbides of different binder content (6, 8, and 15 wt%) and carbide grain size (fine, medium, and coarse) were tested for impact-abrasive wear resistance. Maps reflecting the performance of cemented carbides at low and medium stress abrasion as well as medium stress abrasion combined with impact are constructed. The maps assessing the effects of stress intensity, dynamic loading, and combined effect of increase in stress and application of the dynamic load are thoroughly discussed. Microstructural analysis of the wear mechanisms is performed to support the conclusions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volumes 332–333, May–June 2015, Pages 971-978
نویسندگان
, , , , ,