Research on Pitting Behavior of DH32 Steel in Presence of Thiosulfate and Chloride Ions

DOI

10.2991/iccmcee-15.2015.124How to use a DOI?

Keywords

Pitting; DH32 Steel; Thiosulfate;Potentiodynamic Polarization

Abstract

The pitting behavior of DH32 steel was studied by using the potentiodynamic polarization method. The results showed that the passivation zone narrowed as the concentrations of chloride ions and thiosulfate ions(S2O32-) increased. At high S2O32- ions concentrations, there was a more potential shift to the positive. At high chloride concentrations, i.e. 10% mass NaCl solution, it is noticeable that the pitting corrosion rates had a reverse nature with the increase in concentration of S2O32- ions. These findings also concur with the metallographic examination of the specimens after polarization tests.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Li Zhang
AU  - Xianpeng OuYang
AU  - YuanYuan Shen
AU  - Xiafei Zhang
AU  - XuCheng Dong
PY  - 2015/11
DA  - 2015/11
TI  - Research on Pitting Behavior of DH32 Steel in Presence of Thiosulfate and Chloride Ions
BT  - Proceedings of the 2015 4th International Conference on Computer, Mechatronics, Control and Electronic Engineering
PB  - Atlantis Press
SP  - 689
EP  - 693
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccmcee-15.2015.124
DO  - 10.2991/iccmcee-15.2015.124
ID  - Zhang2015/11
ER  -