Effect of post-annealing on the oxidation behavior of hot rolled ODS-FeCrAl steel in liquid lead

被引：3
|
作者：
Du, Qian [1 ]
Chen, Jianye [1 ]
Yun, Di [1 ]
Gu, Long [2 ]
Long, Bin [3 ]
Lu, Chenyang [1 ]
Li, Yanfen [4 ]
Guo, Shaoqiang [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Nucl Sci & Technol, Shaanxi Key Lab Adv Nucl Energy & Technol, Xian 710049, Shaanxi, Peoples R China
[2] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China
[3] China Inst Atom Energy, Beijing 102413, Peoples R China
[4] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
来源：
CORROSION SCIENCE | 2024年 / 228卷
关键词：
A; Steel; B; SEM; C; TEM; D; EBSD; E. High temperature oxidation; CORROSION BEHAVIOR; DIFFUSION; OXYGEN; MICROSTRUCTURE; EVOLUTION; ALLOYS; CR;
D O I：
10.1016/j.corsci.2023.111815
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The microstructure of the hot-rolled and annealed ODS-FeCrAl steels and related oxide scales formed in the oxygen-containing liquid lead at 600 degree celsius was investigated by SEM-EDS, EBSD and TEM. The post-annealing caused partial recrystallization of hot-rolled ODS steel, which significantly reduced the intense theta-fiber (<001>||ND) and local dislocation density. After corrosion, the hot-rolled ODS steels exhibited complex and locally uneven oxide scales while the annealed ODS steels formed a uniform triple-layered oxide scale. A new insight into the relationship between oxidation depth and grain orientation was proposed, highlighting the significance of orientation-dependent dislocations on the transition of external/internal oxidation mechanisms.
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页数：12
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