11:40 AM - 11:55 AM
[3F09] Correlation between crack growth and corrosion behavior of cobalt-based alloy in simulated PWR primary water
Keywords:Co-based alloy, Simulated PWR primary water, Crack growth behavior, Corrosion behavior
Correlation between crack growth and corrosion behaviors of Co-based alloy in simulated PWR primary water were investigated at the temperature ranging between 250-320℃ using forged and welded materials. Preferential oxidation near the carbide/Co-matrix boundary was observed in both alloys after the tests. Such as preferential oxidation might be affected to the crack growth behavior of Co-based alloys.