Advanced
search

To read this content please select one of the options below:

Effects of reduced sulfur on passive film properties of steam generator (SG) tubing: an overview

Da-Hai Xia (Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University, Tianjin, China and Institute of Metal Research, Chinese Academy of Sciences, Shenyang Liaoning, China and Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada)
Jing-Li Luo (Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 6 February 2019

Issue publication date: 25 April 2019

142

Abstract

Purpose

Corrosion is considered as one of the issues that threaten the safe operation of steam generator (SG) tubing. Some sulfur-related specie can cause corrosion degradation of SG tubing. Sulfur-induced corrosion of SG alloys in high temperature and high-pressure water is one of the most complicated processes. The purpose of this study is to study the effect of reduced sulphur on passive film properties of steam generator (SG) tubing.

Design/methodology/approach

In this paper, the effects of reduced sulfur on passive film properties of SG tubing were reviewed from the aspects of thermodynamic calculations and experimental.

Findings

Thermodynamic calculations are mainly presented by E-pH diagrams, volt equivalent diagrams and species distribution curves. The stability of sulphur species highly depends on temperature, solution pH, and electrochemical potential. Experimental data indicated that reduced sulfur species can interact with the passive film, which led to changes in film thickness, film structure, semiconductivity and pitting growth rate.

Originality/value

The state-of-the-art discussed in this paper gives basis for resolving engineering problems regarding with sulfur-induced corrosion.

Keywords

Acknowledgements

The authors acknowledge the National Natural Science Foundation of China (Nos 51701140) and the open-ended fund of the CAS Key laboratory of Nuclear Materials and Safety Assessment (Institute of Metal Research, Chinese Academy of Sciences, China) (No. 2018NMSAKF01).

Citation

Xia, D.-H. and Luo, J.-L. (2019), "Effects of reduced sulfur on passive film properties of steam generator (SG) tubing: an overview", Anti-Corrosion Methods and Materials, Vol. 66 No. 3, pp. 317-326. https://doi.org/10.1108/ACMM-09-2018-1996

Publisher

:

Emerald Publishing Limited

Copyright © 2019, Emerald Publishing Limited

Related articles

Manage cookies

We’re listening — tell us what you think

Join us on our journey