Swaminathan, Srinivasan Lee, Young-Su Kim, Dong-Ik 2024-01-19T23:02:11Z 2024-01-19T23:02:11Z 2021-09-03 2018-04-01 0010-938X https://pubs.kist.re.kr/handle/201004/121501 Discontinuous oxidation of La (0.14-0.52 wt.%), Cu (0.17-1.74 wt.%) and B (48-109 ppm) alloyed Fe-22Cr ferritic stainless steels, and Crofer 22 APU (0.047 wt.% La), have been studied at 800 degrees C, in flowing air-2% H2O atmosphere, for 1300 h. The determined parabolic rate constants (1.65-2.58 x 10(-4) me cm(-4) h(-1)) are quite close to each other. Benefits of high La-alloying are not caused by the reduction in oxidation, but rather by the alteration in scale growth direction. On the other hand, high Cu-alloying promotes the segregation of Cu at the scale/alloy interface, which suppresses the sub-surface and/or internal oxidation. English PERGAMON-ELSEVIER SCIENCE LTD HIGH-TEMPERATURE OXIDATION CROFER 22 APU METALLIC INTERCONNECTS SOFC INTERCONNECT RESISTANT ALLOYS STAGE OXIDATION SCALE BEHAVIOR CR HEAT Effects of alloyed La, Cu and B on the oxidation of Fe-22Cr ferritic stainless steels under simulated cathode side atmosphere of solid oxide fuel cell interconnects Article 10.1016/j.corsci.2018.01.025 1 CORROSION SCIENCE, v.133, pp.150 - 164 CORROSION SCIENCE 133 150 164 scie scopus 000429764100015 2-s2.0-85041101994 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article HIGH-TEMPERATURE OXIDATION CROFER 22 APU METALLIC INTERCONNECTS SOFC INTERCONNECT RESISTANT ALLOYS STAGE OXIDATION SCALE BEHAVIOR CR HEAT Stainless steel Copper Rare earth elements SIMS Oxidation Segregation