Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1603331 | International Journal of Refractory Metals and Hard Materials | 2014 | 13 Pages |
Abstract
The room temperature electrochemical response of TiC-based cermets, with 10 to 30Â vol.% 316L stainless steel binder and either fine- or coarse-grained TiC, has been investigated in an aqueous 3.5Â wt.% NaCl solution. The assessment methods included Tafel extrapolation, in combination with potentiodynamic and potentiostatic polarisation. Corroded samples were characterised using SEM, with post-corrosion solutions analysed using ICP-OES. The highest corrosion resistance was achieved at the lowest binder contents, while those with a more coarse-grained structure generally showed superior resistance, due to a reduced TiC-316L interfacial area. Preferential dissolution of the steel binder was observed, leaving the TiC essentially unaffected.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Chukwuma C. Onuoha, Georges J. Kipouros, Zoheir N. Farhat, Kevin P. Plucknett,