Effect of minor addition of Ce on microstructure and LBE corrosion resistance for CLAM steel

作     者：Luo, Wenwei Huang, Qunying Luo, Lin Xiao, Zunqi Wei, Jie Cao, Haibo 

作者机构：Chinese Acad Sci Inst Nucl Energy Safety Technol Hefei Inst Phys Sci Hefei 230031 Anhui Peoples R China Univ Sci & Technol China Hefei 230026 Anhui Peoples R China 

出 版 物：《CORROSION SCIENCE》 (腐蚀科学)

年 卷 期：2022年第209卷

核心收录：

学科分类：080503[工学-材料加工工程] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：National Key Research and Develop-ment Program of China [2018YFE0122100] YouthInnovation Promotion Association of Chinese Academy of Sciences (CAS) International Partnership Program of CAS [116134KYSB20200056] Institutional Center for Shared Technologies and Facilities of INEST 

主　　题：Ce addition LBE Corrosion resistance F M steel Triple junction 

摘      要：Ce-CLAM specimens were exposed to lead-bismuth eutectic (LBE) for 1500 h under 10-6 wt% oxygen concen-tration at 500 degrees C. The continuity and integrity of the oxide scale were better in Ce-CLAM specimens than in CLAM specimens, and the parabolic rate constant kp of oxide scale growth was only about 1/2 that of CLAM specimens. Ce-CLAM specimens exhibited better LBE corrosion resistance compared with CLAM specimens, which was mainly attributed to the inhibition function for Fe out-diffusing and the improvement for grain boundaries from Ce. A model was proposed to illustrate the mechanism of Ce-CLAM s LBE corrosion resistance.