کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
619360 1455043 2009 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The microstructure of the affected zone of a worn PCBN cutting tool characterised with SEM and TEM
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
The microstructure of the affected zone of a worn PCBN cutting tool characterised with SEM and TEM
چکیده انگلیسی
The results show an adherent layer smearing the crater on the rake face of the PCBN tool cutting edge. Closer investigation of this layer reveals an inner layered structure with some characteristic features. This layer consists of elements from the workpiece material. The tool-adherent layer interface is smooth, showing rounded, concave wear surfaces of micron-sized cBN instead of the original flat grain surfaces. Larger Fe-rich areas are found which are oxidised on the surface, sometimes containing smaller amounts of Cr and Ni. Mn and S are found as larger, often elongated areas primarily close to the tool-adherent layer interface. The dominating degrading mechanism appears to be chemical degradation. The detailed microstructure of the tool-adherent layer interface and the adherent layer is presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volume 267, Issues 5–8, 15 June 2009, Pages 1031-1040
نویسندگان
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