Corrosion behaviour of alumina-forming heat resistant alloy with Ti in high temperature steam

Gokul Obulan Subramanian; Chaewon Kim; Woong Heo; Changheui Jang

doi:10.1016/j.corsci.2021.110000

Corrosion behaviour of alumina-forming heat resistant alloy with Ti in high temperature steam

Gokul Obulan Subramanian, Chaewon Kim, Woong Heo, Changheui Jang^*

^*Corresponding author for this work

Metallurgy and Materials

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

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Abstract

The corrosion behaviour of an alumina-forming heat resistant alloy with high Ti (Fe-35Ni-16Cr-4.5Al-3Ti, wt%) was evaluated in high temperature steam. The alloy developed interfacial α-Al₂O₃ layer during the pre-oxidation treatment in air at 750 °C. However, it formed external Cr₂O₃ and internal γ-Al₂O₃ oxides on the austenite matrix during the steam corrosion at 750 °C for 1000 h. This behaviour is attributed to the increased oxygen permeability into the austenite matrix from the synergistic effect of steam and Ti. Meanwhile, the pre-oxidized alloy with interfacial α-Al₂O₃ layer showed improved corrosion protection with reduced weight gain in steam environment.

Original language	English
Article number	110000
Journal	Corrosion Science
Volume	195
Early online date	2 Dec 2021
DOIs	https://doi.org/10.1016/j.corsci.2021.110000
Publication status	Published - Feb 2022

Bibliographical note

Funding Information:
This study was mainly supported by the Nuclear Research and Development Program (no. 2016R1A5A101391921 and 2019M2D2A2050927) of the MSIT/NRF of the Rep. of Korea. Financial support for two of the authors is provided by the BK-Plus Program of the National Research Foundation (NRF) of the Rep. of Korea. The supports from the KAIST Analysis Center for Research Advancement (KARA) are acknowledged.

Keywords

Alumina-forming alloy
High temperature corrosion
Internal oxidation
Pre-oxidation
Steam

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science

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Subramanian2021CorrosionAccepted author manuscript, 2.2 MBLicence: Creative Commons: Attribution-NonCommercial-NoDerivs (CC BY-NC-ND)

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@article{579ffcf11c464ca791ab5d0c7e37f05e,

title = "Corrosion behaviour of alumina-forming heat resistant alloy with Ti in high temperature steam",

abstract = "The corrosion behaviour of an alumina-forming heat resistant alloy with high Ti (Fe-35Ni-16Cr-4.5Al-3Ti, wt%) was evaluated in high temperature steam. The alloy developed interfacial α-Al2O3 layer during the pre-oxidation treatment in air at 750 °C. However, it formed external Cr2O3 and internal γ-Al2O3 oxides on the austenite matrix during the steam corrosion at 750 °C for 1000 h. This behaviour is attributed to the increased oxygen permeability into the austenite matrix from the synergistic effect of steam and Ti. Meanwhile, the pre-oxidized alloy with interfacial α-Al2O3 layer showed improved corrosion protection with reduced weight gain in steam environment.",

keywords = "Alumina-forming alloy, High temperature corrosion, Internal oxidation, Pre-oxidation, Steam",

author = "{Obulan Subramanian}, Gokul and Chaewon Kim and Woong Heo and Changheui Jang",

note = "Funding Information: This study was mainly supported by the Nuclear Research and Development Program (no. 2016R1A5A101391921 and 2019M2D2A2050927) of the MSIT/NRF of the Rep. of Korea. Financial support for two of the authors is provided by the BK-Plus Program of the National Research Foundation (NRF) of the Rep. of Korea. The supports from the KAIST Analysis Center for Research Advancement (KARA) are acknowledged.",

year = "2022",

month = feb,

doi = "10.1016/j.corsci.2021.110000",

language = "English",

volume = "195",

journal = "Corrosion Science",

issn = "0010-938X",

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T1 - Corrosion behaviour of alumina-forming heat resistant alloy with Ti in high temperature steam

AU - Obulan Subramanian, Gokul

AU - Kim, Chaewon

AU - Heo, Woong

AU - Jang, Changheui

N1 - Funding Information: This study was mainly supported by the Nuclear Research and Development Program (no. 2016R1A5A101391921 and 2019M2D2A2050927) of the MSIT/NRF of the Rep. of Korea. Financial support for two of the authors is provided by the BK-Plus Program of the National Research Foundation (NRF) of the Rep. of Korea. The supports from the KAIST Analysis Center for Research Advancement (KARA) are acknowledged.

PY - 2022/2

Y1 - 2022/2

N2 - The corrosion behaviour of an alumina-forming heat resistant alloy with high Ti (Fe-35Ni-16Cr-4.5Al-3Ti, wt%) was evaluated in high temperature steam. The alloy developed interfacial α-Al2O3 layer during the pre-oxidation treatment in air at 750 °C. However, it formed external Cr2O3 and internal γ-Al2O3 oxides on the austenite matrix during the steam corrosion at 750 °C for 1000 h. This behaviour is attributed to the increased oxygen permeability into the austenite matrix from the synergistic effect of steam and Ti. Meanwhile, the pre-oxidized alloy with interfacial α-Al2O3 layer showed improved corrosion protection with reduced weight gain in steam environment.

AB - The corrosion behaviour of an alumina-forming heat resistant alloy with high Ti (Fe-35Ni-16Cr-4.5Al-3Ti, wt%) was evaluated in high temperature steam. The alloy developed interfacial α-Al2O3 layer during the pre-oxidation treatment in air at 750 °C. However, it formed external Cr2O3 and internal γ-Al2O3 oxides on the austenite matrix during the steam corrosion at 750 °C for 1000 h. This behaviour is attributed to the increased oxygen permeability into the austenite matrix from the synergistic effect of steam and Ti. Meanwhile, the pre-oxidized alloy with interfacial α-Al2O3 layer showed improved corrosion protection with reduced weight gain in steam environment.

KW - Alumina-forming alloy

KW - High temperature corrosion

KW - Internal oxidation

KW - Pre-oxidation

KW - Steam

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DO - 10.1016/j.corsci.2021.110000

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AN - SCOPUS:85120754920

SN - 0010-938X

VL - 195

JO - Corrosion Science

JF - Corrosion Science

M1 - 110000

ER -

Corrosion behaviour of alumina-forming heat resistant alloy with Ti in high temperature steam

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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