The pitting corrosion of Ni3(Si,Ti) intermetallic compound was investigated as function of chloride concentration by using electrochemical method and scanning electron microscope in sodium chloride solutions at 293 K. In addition, the pitting corrosion of type C276 alloy was also studied under the same experimental condition for comparison. The pitting potential obtained for the intermetallic compound decreased with increasing chloride concentration. The specific pitting potential and pitting potential of Ni3(Si,Ti) were lower than those of C276 alloy, which means that the pitting corrosion resistance of C276 alloy was higher than that of Ni3(Si,Ti).
The pitting corrosion of Ni3(Si,Ti) with 4 at% Al consisting of two regions of a Ni3(Si,Ti) single-phase of L12 structure and two phases of L12 and fcc Niss was investigated as function of chloride concentrations by using electrochemical method, scanning electron microscope and energy dispersive X-Ray spectroscopy in neutral sodium chloride solutions at 293 K. In addition, the pitting corrosion of Ni3(Si,Ti) and type C276 alloy were also studied under the same experimental condition for comparison. The pitting potential obtained for the Ni3(Si,Ti) with 4 at%Al decreased with increasing chloride concentration. The specific pitting potential and pitting potential of Ni3(Si,Ti) with 4 at%, Ni3(Si,Ti) and C276 were the lowest, the moderate and the highest, respectively, which means that the pitting corrosion resistance of Ni3(Si,Ti) was higher than Ni3(Si,Ti) with 4 at% Al, but lower than that of C276. A critical chloride concentration of Ni3(Si,Ti) with 4 at% Al was found to be lower than that of Ni3(Si,Ti). The Pitting corrosion of Ni3(Si,Ti) with 4 at% Al occurred in the two phase mixture (L12 + Niss).
Eye blinking known as ocular artifact cause changes to the electric fields over the scalp and as a result, EEG recordings are often significantly distorted and theirinterpretation problematic. In this paper, an algorithm using second order blind identification with robust orthogonalization (SOBI-RO) is used to remove the ocular artifact in amotor imagery experiment.Simulation results shows that the ocular artifacts are significantly removed and the sources of the brain activity are clearly identified. The identification performance using signal to distortion ratio value about 68.88% is achieved.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.