کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1661871 1008432 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructures and wear resistance of large WC particles reinforced surface metal matrix composites produced by plasma melt injection
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Microstructures and wear resistance of large WC particles reinforced surface metal matrix composites produced by plasma melt injection
چکیده انگلیسی

Large WC particles (− 840 μm–+ 420 μm) reinforced surface metal matrix composites (SMMCs) were produced using plasma melt injection (PMI) process on a Q235 (similar to ASTM A570 Gr. A) low carbon steel substrate. Microstructures of the SMMC were observed using scanning electron microscope (SEM), and the composition was determined with energy dispersion spectroscopy (EDS). Phases were analyzed with X-ray diffraction. Micro-hardness of the SMMC was tested. Wear losses of the SMMC layer were evaluated under dry friction conditions and compared with those of the substrate material. The results show that the large WC particles are caught by crystallized metal and stay in the upper part of the SMMC layer, and there is only a little melting on the outer surface. No sinking down of WC particles occurs. The SMMC layer is well bonded to the substrate, and the interface is crack free. The wear resistance of the Q235 substrate is greatly improved with large WC particles injected.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 201, Issue 18, 25 June 2007, Pages 7978–7982
نویسندگان
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