نتایج جستجو برای: wc based cemented carbides
تعداد نتایج: 2944935 فیلتر نتایج به سال:
Abstract Densely consolidated WC-based hard materials with 5 – 20 vol% ZrSiO 4 was fabricated by spark plasma sintering at 1400 ℃ a constant heating rate of 70 ℃/min −1 . To achieve mechanical alloying WC-ZrSiO , planetary ball milling carried out for 12 h, during which the brittle-brittle components (WC-ZrSiO ) became fragmented and their particles refined. It observed that certain, specific, ...
I POPULÄRVETENSKAPLIG SAMMANFATTNING II
The stability of the eutectic carbide in a self-designed Fe-Cr-Mo-W-V-C alloy during solidifi atio as a alyzed i this ork. The ar ide pre ipitatio rule of the steel was calculated by Thermo-Calc.The typical microstructures at 1240 °C and 1200 °C ere o ser ed y opti al i ros ope OM ,field e issio s a i g ele tro microscope (FESEM) and transmission electron microscope (TEM). The selected area dif...
This paper deals with the characterization of three different commercial, WC-Co cemented-carbide tools in form saw blades, one group which exhibits more frequent cracking. Since properties these materials largely depend on microstructure, a detailed was carried out using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and diffraction (XRD). The SEM image analysis ...
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