The stress corrosion cracking (SCC) behavior of oxide-dispersion-strengthened (ODS) 304 austenitic steels has been investigated in a chloride-rich aqueous environment at 143°C. ODS 304 alloys are found to be more resistant to SCC than the commercial AISI 304 steels. Under a constant tensile load of 177 MPa, the crack growth rate in ODS 304 steels is about one fourth of AISI 304 steels, and the time-to-failure of ODS 304 steels is 7.5 times of AISI 304 steels. Intergranular SCC dominates the fracture surface of AISI 304 steel, while in ODS 304 steel both intergranular and transgranular SCC occur. Electrochemical reactivity tests show ODS 304 steel is less sensitized than AISI 304, likely a result of a low carbon concentration and small grain size.
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1 April 2018
Research Article|
November 23 2017
Chloride-Induced Stress Corrosion Cracking of Oxide-Dispersion-Strengthened Austenitic Steels Available to Purchase
Xueliang Yan;
Xueliang Yan
*Department of Mechanical and Materials Engineering, University of Nebraska–Lincoln, Lincoln, Nebraska 68588.
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Fei Wang;
Fei Wang
*Department of Mechanical and Materials Engineering, University of Nebraska–Lincoln, Lincoln, Nebraska 68588.
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Lejun Jiang;
Lejun Jiang
*Department of Mechanical and Materials Engineering, University of Nebraska–Lincoln, Lincoln, Nebraska 68588.
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Xiaoxing Qiu;
Xiaoxing Qiu
*Department of Mechanical and Materials Engineering, University of Nebraska–Lincoln, Lincoln, Nebraska 68588.
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Yongfeng Lu;
Yongfeng Lu
**Department of Electrical Engineering, University of Nebraska–Lincoln, Lincoln, Nebraska 68588.
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Michael Nastasi;
Michael Nastasi
***Nebraska Center for Energy Sciences Research, University of Nebraska–Lincoln, Lincoln, Nebraska 68588.
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Zhangjian Zhou;
Zhangjian Zhou
****School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 10083, PR China.
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Bai Cui
Bai Cui
‡
*Department of Mechanical and Materials Engineering, University of Nebraska–Lincoln, Lincoln, Nebraska 68588.
‡Corresponding author. E-mail: [email protected].
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‡Corresponding author. E-mail: [email protected].
Online ISSN: 1938-159X
Print ISSN: 0010-9312
© 2018, NACE International
2018
CORROSION (2018) 74 (4): 424–429.
Citation
Xueliang Yan, Fei Wang, Lejun Jiang, Xiaoxing Qiu, Yongfeng Lu, Michael Nastasi, Zhangjian Zhou, Bai Cui; Chloride-Induced Stress Corrosion Cracking of Oxide-Dispersion-Strengthened Austenitic Steels. CORROSION 1 April 2018; 74 (4): 424–429. https://doi.org/10.5006/2664
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