Oxidation behavior of high-strength FeCrAl alloys in a high-temperature supercritical carbon dioxide environment

Hongsheng Chen; Sung Hwan Kim; Chongsheng Long; Chaewon Kim; Changheui Jang

doi:10.1016/j.pnsc.2018.11.004

Oxidation behavior of high-strength FeCrAl alloys in a high-temperature supercritical carbon dioxide environment

Hongsheng Chen
, Sung Hwan Kim
, Chongsheng Long
, Chaewon Kim
, Changheui Jang^*

^*Corresponding author for this work

Korea Advanced Institute of Science and Technology
Nuclear Power Institute of China

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

52 Scopus citations

Abstract

The oxidation behavior of three high-strength FeCrAl alloys was investigated in supercritical carbon dioxide environment at 650 °C. After exposure for 500 h, the weight gains of the FeCrAl alloys gradually decreased with increasing Al content. The oxide scales are primarily composed of α-Al₂O₃ and spinel oxides. With increasing Al content, the amount of α-Al₂O₃ increases and the C content decreased in the oxide scale and sub-scale matrix. Moreover, larger (Nb,Mo)C carbides formed in the sub-scale matrix and their number decreased with the increase of Al content.

Original language	English
Pages (from-to)	731-739
Number of pages	9
Journal	Progress in Natural Science: Materials International
Volume	28
Issue number	6
DOIs	https://doi.org/10.1016/j.pnsc.2018.11.004
State	Published - Dec 2018
Externally published	Yes

Keywords

High-strength FeCrAl alloy
Oxidation
Supercritical carbon dioxide
α-AlO

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10.1016/j.pnsc.2018.11.004

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title = "Oxidation behavior of high-strength FeCrAl alloys in a high-temperature supercritical carbon dioxide environment",

abstract = "The oxidation behavior of three high-strength FeCrAl alloys was investigated in supercritical carbon dioxide environment at 650 °C. After exposure for 500 h, the weight gains of the FeCrAl alloys gradually decreased with increasing Al content. The oxide scales are primarily composed of α-Al2O3 and spinel oxides. With increasing Al content, the amount of α-Al2O3 increases and the C content decreased in the oxide scale and sub-scale matrix. Moreover, larger (Nb,Mo)C carbides formed in the sub-scale matrix and their number decreased with the increase of Al content.",

keywords = "High-strength FeCrAl alloy, Oxidation, Supercritical carbon dioxide, α-AlO",

author = "Hongsheng Chen and Kim, \{Sung Hwan\} and Chongsheng Long and Chaewon Kim and Changheui Jang",

note = "Publisher Copyright: {\textcopyright} 2018 Chinese Materials Research Society",

year = "2018",

month = dec,

doi = "10.1016/j.pnsc.2018.11.004",

language = "英语",

volume = "28",

pages = "731--739",

journal = "Progress in Natural Science: Materials International",

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T1 - Oxidation behavior of high-strength FeCrAl alloys in a high-temperature supercritical carbon dioxide environment

AU - Chen, Hongsheng

AU - Kim, Sung Hwan

AU - Long, Chongsheng

AU - Kim, Chaewon

AU - Jang, Changheui

PY - 2018/12

Y1 - 2018/12

N2 - The oxidation behavior of three high-strength FeCrAl alloys was investigated in supercritical carbon dioxide environment at 650 °C. After exposure for 500 h, the weight gains of the FeCrAl alloys gradually decreased with increasing Al content. The oxide scales are primarily composed of α-Al2O3 and spinel oxides. With increasing Al content, the amount of α-Al2O3 increases and the C content decreased in the oxide scale and sub-scale matrix. Moreover, larger (Nb,Mo)C carbides formed in the sub-scale matrix and their number decreased with the increase of Al content.

AB - The oxidation behavior of three high-strength FeCrAl alloys was investigated in supercritical carbon dioxide environment at 650 °C. After exposure for 500 h, the weight gains of the FeCrAl alloys gradually decreased with increasing Al content. The oxide scales are primarily composed of α-Al2O3 and spinel oxides. With increasing Al content, the amount of α-Al2O3 increases and the C content decreased in the oxide scale and sub-scale matrix. Moreover, larger (Nb,Mo)C carbides formed in the sub-scale matrix and their number decreased with the increase of Al content.

KW - High-strength FeCrAl alloy

KW - Oxidation

KW - Supercritical carbon dioxide

KW - α-AlO

UR - https://www.scopus.com/pages/publications/85057249022

U2 - 10.1016/j.pnsc.2018.11.004

DO - 10.1016/j.pnsc.2018.11.004

M3 - 文章

AN - SCOPUS:85057249022

SN - 1002-0071

VL - 28

SP - 731

EP - 739

JO - Progress in Natural Science: Materials International

JF - Progress in Natural Science: Materials International

IS - 6

ER -

Oxidation behavior of high-strength FeCrAl alloys in a high-temperature supercritical carbon dioxide environment

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Keywords

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