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Permanent link (DOI): https://doi.org/10.7939/R38T6W

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Corrosion Behavior of Designed Ferritic-martensitic Steels in Supercritical Water Open Access

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Other title
Subject/Keyword
corrosion
supercritical water
ferritic-martensitic steel
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Liu, Zhe
Supervisor and department
Luo, Jingli (Chemical and Materials Engineering)
Chen, Weixing (Chemical and Materials Engineering)
Examining committee member and department
Chung, Hyun-Joong (Chemical and Materials Engineering)
Chen, Weixing (Chemical and Materials Engineering)
Luo, Jingli (Chemical and Materials Engineering)
Department
Department of Chemical and Materials Engineering
Specialization
Chemical Engineering
Date accepted
2013-03-28T09:14:46Z
Graduation date
2013-06
Degree
Master of Science
Degree level
Master's
Abstract
As the Supercritical Water-cooled Reactor (SCWR) shows a promising future, the corrosion behavior of candidate materials has attracted great interest. In this study, experimental investigation was conducted to evaluate the corrosion behavior of the ferritic-martensitic steels designed for the use in SCWR. The steels were evaluated in supercritical water (SCW) with different dissolved oxygen concentrations at 500°C and 25MPa for up to 1000 hours. The effects of alloy elements, temperature, and dissolved oxygen concentration on the corrosion behavior of the ferritic-martensitic steels in SCW have been investigated. It was found that adding Si in alloy increased the corrosion resistance, whereas the addition of Mn showed the converse effect. Higher dissolved oxygen concentration accelerated the corrosion in SCW and decreased the effects of Si and Mn. Ultrasonic peening was also investigated to evaluate its effect on the corrosion in SCW. Significant improved corrosion resistance could be achieved by ultrasonic peening treatment.
Language
English
DOI
doi:10.7939/R38T6W
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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