含Zr ODS FeCrAl合金在550 ℃ Pb-Bi熔液中的腐蚀行为

张晓晨, 李静, 李长记, 熊良银, 刘实

Corrosion Behavior of ODS FeCrAl Alloys Containing Zr Exposed to Lead-Bismuth Eutectic at 550 oC

ZHANG Xiaochen, LI Jing, LI Changji, XIONG Liangyin, LIU Shi

图12 含Zr ODS FeCrAl合金腐蚀机制示意图

Fig.12 Schematics of corrosion mechanism of ODS FeCrAl alloy containing Zr (a) alloying elements and O diffusing outward and inward at the initial stage of oxidation (b) Zr preferentially binding to O concomitant with blocking Al and O binding (c) Fe oxides nucleation assisted by Zr and O binding (d) formation of Fe oxide nodules and continuance of internal oxidation