MICROSTRUCTURAL CHARACTERIZATIONS OF SINTERED W-VC-C COMPOSITES AND THEIR ELECTROCHEMICAL BEHAVIOURS IN 1 M H2SO4 AQUEOUS SOLUTIONS

Sultan SÖNMEZ¹ , Burak DİKİCݲ , Mustafa Lütfi ÖVENÇOĞLU³

The effects of alloying duration on the microstructural and corrosion properties of Tungsten (W) matrix composites were investigated in this study. As blended W-2VC-1C (wt.%) powders were mechanically alloyed using a high energy ball mill at different milling times (1, 3, 6, 12 and 24 h) under inert Argon. Characterization of the sintered composites carried out using a scanning electron microscope (SEM) and X-ray diffractometer (XRD). Corrosion tests were performed in aqueous 1 M H2SO4 solutions to determine the effects of different alloying duration on the corrosion resistance of the composites.

Keywords
Mechanical Alloying, W Matrix Composites, VC , Corrosion, Polarization,