University of Oulu

Kolli, S. , Ferancova, A. , Porter, D. , Kömi, J. (2019). 'Study of Intergranular Corrosion in Austenitic Stainless Steels Using Electrochemical Impedance Spectroscopy'. World Academy of Science, Engineering and Technology, Open Science Index 148, International Journal of Materials and Metallurgical Engineering, 13(4), 165 - 168.

Study of intergranular corrosion in austenitic stainless steels using electrochemical impedance spectroscopy

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Author: Kolli, Satish1; Ferancova, Adriana2; Porter, David1;
Organizations: 1Materials and Production Engineering, Faculty of Technology, University of Oulu, Finland, FI-90014
2Measurement Technology Unit, University of Oulu, Kajaani University Consortium, Kajaani, Finland, FI-87400
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 0.6 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe202002195943
Language: English
Published: World Academy of Science, Engineering and Technology, 2019
Publish Date: 2020-02-19
Description:

Abstract

Electrochemical impedance spectroscopy (EIS) has been used to detect sensitization in austenitic stainless steels that are heat treated in the temperature regime 600–820 °C to produce different degrees of sensitization in the material. The tests were conducted at five different DC potentials in the transpassive region. The quantitative determination of degree of sensitization has been done using double loop electrochemical potentiokinetic reactivation tests (DL-EPR). The correlation between EIS Nyquist diagrams and DL-EPR degree of sensitization values has been studied. The EIS technique can be used as a qualitative tool in determining the intergranular corrosion in austenitic stainless steels that are heat treated at a given temperature.

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Series: International journal of mechanical, industrial science and engineering
ISSN: 1307-6892
ISSN-E: 1307-6892
ISSN-L: 1307-6892
Volume: 13
Issue: 4
Pages: 165 - 168
DOI: 10.5281/zenodo.2643881
OADOI: https://oadoi.org/10.5281/zenodo.2643881
Type of Publication: A1 Journal article – refereed
Field of Science: 116 Chemical sciences
Subjects:
Copyright information: © 2020 World Academy of Science, Engineering and Technology
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