Corrosion Resistance of Nanostructured Cemented Carbides with Alternative FeNi and FeNiCo Binders.

ABSTRACT: Nanostructured cemented carbides with Co binders have shown excellent mechanical properties in various applications. Nevertheless, their corrosion resistance has shown to be insufficient in different corrosive environments, leading to premature tool failure. In this study, WC-based cemented carbide samples with different binders were produced using 9 wt% of FeNi or FeNiCo with the addition of Cr₃C₂ and NbC as the grain growth inhibitors. The samples were investigated using electrochemical corrosion techniques: the open circuit potential E_corr, the linear polarization resistance (LPR), the Tafel extrapolation method, and the electrochemical impedance spectroscopy (EIS) at room temperature in the solution of 3.5% NaCl. Microstructure characterization,

SUBMITTER: Aleksandrov Fabijanic T 

PROVIDER: S-EPMC10142917 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature