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

Qian Du; Jianye Chen; Di Yun; Long Gu; Bin Long; Chenyang Lu; Yanfen Li; Shaoqiang Guo

doi:10.1016/j.corsci.2023.111815

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

Qian Du
, Jianye Chen
, Di Yun
, Long Gu
, Bin Long
, Chenyang Lu
, Yanfen Li
, Shaoqiang Guo

School of Energy and Power Engineering

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

The microstructure of the hot-rolled and annealed ODS-FeCrAl steels and related oxide scales formed in the oxygen-containing liquid lead at 600 °C was investigated by SEM-EDS, EBSD and TEM. The post-annealing caused partial recrystallization of hot-rolled ODS steel, which significantly reduced the intense θ-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.

Original language	English
Article number	111815
Journal	Corrosion Science
Volume	228
DOIs	https://doi.org/10.1016/j.corsci.2023.111815
State	Published - Mar 2024

Keywords

A. Steel
B. SEM
C. TEM
D. EBSD
E. High temperature oxidation

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10.1016/j.corsci.2023.111815

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

abstract = "The microstructure of the hot-rolled and annealed ODS-FeCrAl steels and related oxide scales formed in the oxygen-containing liquid lead at 600 °C was investigated by SEM-EDS, EBSD and TEM. The post-annealing caused partial recrystallization of hot-rolled ODS steel, which significantly reduced the intense θ-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.",

keywords = "A. Steel, B. SEM, C. TEM, D. EBSD, E. High temperature oxidation",

author = "Qian Du and Jianye Chen and Di Yun and Long Gu and Bin Long and Chenyang Lu and Yanfen Li and Shaoqiang Guo",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier Ltd",

year = "2024",

month = mar,

doi = "10.1016/j.corsci.2023.111815",

language = "英语",

volume = "228",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - Effect of post-annealing on the oxidation behavior of hot rolled ODS-FeCrAl steel in liquid lead

AU - Du, Qian

AU - Chen, Jianye

AU - Yun, Di

AU - Gu, Long

AU - Long, Bin

AU - Lu, Chenyang

AU - Li, Yanfen

AU - Guo, Shaoqiang

PY - 2024/3

Y1 - 2024/3

N2 - The microstructure of the hot-rolled and annealed ODS-FeCrAl steels and related oxide scales formed in the oxygen-containing liquid lead at 600 °C was investigated by SEM-EDS, EBSD and TEM. The post-annealing caused partial recrystallization of hot-rolled ODS steel, which significantly reduced the intense θ-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.

AB - The microstructure of the hot-rolled and annealed ODS-FeCrAl steels and related oxide scales formed in the oxygen-containing liquid lead at 600 °C was investigated by SEM-EDS, EBSD and TEM. The post-annealing caused partial recrystallization of hot-rolled ODS steel, which significantly reduced the intense θ-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.

KW - A. Steel

KW - B. SEM

KW - C. TEM

KW - D. EBSD

KW - E. High temperature oxidation

UR - https://www.scopus.com/pages/publications/85181772551

U2 - 10.1016/j.corsci.2023.111815

DO - 10.1016/j.corsci.2023.111815

M3 - 文章

AN - SCOPUS:85181772551

SN - 0010-938X

VL - 228

JO - Corrosion Science

JF - Corrosion Science

M1 - 111815

ER -

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

Abstract

Keywords

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