Abstract
Corrosion of SS316L steel in flowing lead–lithium eutectic alloy melt has been investigated with respect to eutectic melt velocity and temperature gradient in a thermal buoyancy loop. Preferential dissolution of major constituent elements namely, Fe, Ni, Cr from the tube walls with the formation of a porous corroded layer has been observed in the hot leg maintained at 773 K. Nickel and chromium rich deposits were found on the cold leg surface which was at 673 K. However, no porous corroded layer has been observed in the cold leg. Chemical analysis of the eutectic showed a substantially high concentration of Ni.
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