Effect of Aqua Blasting, Sandblasting and Laser Engraving on the Corrosion Resistance of Type 316 Stainless Steel

Corrosion and Contamination of 316L Stainless Steel in Simulated HNO3-Based Spent Nuclear Fuel Reprocessing Environments with Cesium and Strontium

“…The aggregation of C-containing and Sr-containing particles can be seen in the map of the element distribution around the crater ablated by LIBS (Figure ), indicating that the material of the contaminated steel surface can be redistributed by the laser pulse. Moreover, at the boundary of the crater, the absence of signals of Fe, Cr, and O demonstrated a part of the passive film was damaged by LIBS, reducing the corrosion resistance of 316L stainless steel, which was consistent with the previous study . Therefore, in the applications of LIBS in the nuclear industry, the redistribution of radiation materials on the surface and the possibility of material failure due to reduced corrosion resistance needs to be paid attention to.…”

“…Moreover, at the boundary of the crater, the absence of signals of Fe, Cr, and O demonstrated a part of the passive film was damaged by LIBS, reducing the corrosion resistance of 316L stainless steel, which was consistent with the previous study. 57 Therefore, in the applications of LIBS in the nuclear industry, the redistribution of radiation materials on the surface and the possibility of material failure due to reduced corrosion resistance needs to be paid attention to. The depths of craters ablated by LIBS with 1, 2, and 5 shots were measured by LSCM (Figure 14), which were 2.329, 3.859, and 6.666 μm, respectively, indicating that LIBS is a quasi-nondestructive analytic tool for the chemical composition of stainless steel.…”