Proceedings of the 2015 International Symposium on Energy Science and Chemical Engineering

Corrosion Behavior of Austenitic Steel 304 in Nearcritical Aqueous Solutions

Authors
Yanhui Li, Shuzhong Wang, Laisheng Wang, Pengfei Yu, Jianqiao Yang
Corresponding Author
Yanhui Li
Available Online December 2015.
DOI
https://doi.org/10.2991/isesce-15.2015.38How to use a DOI?
Keywords
Austenitic steel, Nearcritical Aqueous Solutions, Corrosion, Chlorides
Abstract
In this paper, the corrosion characteristics of Austenitic steel 304 in nearcritical aqueous solutions containing 1000 ppm chlorides, and chemical oxygen demand (COD) of 2000 ppm, was investigated. The samples surface were examined using scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). The results indicated that the most serious corrosion issues occurred at 360 among three temperatures: 350 , 360 and 400 . The water density and ion products play key roles in influencing the corrosion resistance of alloys under nearcritical aqueous solutions, while effects of temperatures on the stability of the scales are relatively minor. The corrosion resistance of 304 Steel in alkalescent solutions was better than that in other solutions. Generally, 7.5 - 9 was an appropriate pH range.
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Proceedings
2015 International Symposium on Energy Science and Chemical Engineering
Part of series
Advances in Engineering Research
Publication Date
December 2015
ISBN
978-94-6252-140-7
ISSN
2352-5401
DOI
https://doi.org/10.2991/isesce-15.2015.38How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Yanhui Li
AU  - Shuzhong Wang
AU  - Laisheng Wang
AU  - Pengfei Yu
AU  - Jianqiao Yang
PY  - 2015/12
DA  - 2015/12
TI  - Corrosion Behavior of Austenitic Steel 304 in Nearcritical Aqueous Solutions
BT  - 2015 International Symposium on Energy Science and Chemical Engineering
PB  - Atlantis Press
SN  - 2352-5401
UR  - https://doi.org/10.2991/isesce-15.2015.38
DO  - https://doi.org/10.2991/isesce-15.2015.38
ID  - Li2015/12
ER  -