Corrosion behavior of 9Cr-Si heat resistant steel deposited metal in liquid lead-bismuth eutectic at 550 °C

被引：21
作者：
Liu, Chen [1 ,2 ]
Wei, Shitong [1 ,3 ]
Lu, Shanping [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
[2] Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
[3] Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
来源：
CORROSION SCIENCE | 2023年 / 215卷
关键词：
Steel; EPMA; TEM; XPS; Oxidation; Welding; PB-BI; OXIDATION MECHANISM; FE-9CR-1MO STEEL; MATERIALS CHALLENGES; STRUCTURAL-MATERIALS; MARTENSITIC STEEL; WELD BEAD; TEMPERATURE; LBE; OXYGEN;
D O I：
10.1016/j.corsci.2023.111042
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The corrosion behaviors of 9Cr-Si heat resistant steel deposited metals with different Si contents in oxygen -saturated static lead-bismuth eutectic at 550 degrees C were investigated. The results indicates that the oxide scale has a three-layer structure, including outer layer, inner layer, and inner oxidation zone (IOZ). The growing rate of oxide scale decreases with the increasing Si content in steel. The oxidation mechanism of high Si 9Cr deposited metal was discussed. IOZ presents emergence, disappearance, and regeneration in the corrosion process, while the inner layer divides into two sublayers during oxidation.
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页数：11
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