Intergranular corrosion behavior of low-chromium ferritic stainless steel without Cr-carbide precipitation after aging
No Thumbnail Available
Access rights
openAccess
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Date
2020-04-15
Major/Subject
Mcode
Degree programme
Language
en
Pages
Series
Corrosion Science, articlenumber 108420
Abstract
The intergranular corrosion behavior of the low-chromium ferritic stainless steel without Cr-carbide precipitation was investigated by the methods of qualitative and quantitative corrosion testing and microstructural analysis. The intergranular corrosion susceptibility of the aged stainless steels can be attributed to the Cr-depleted zone formation induced by Cr-C co-segregation to grain boundaries before Cr-carbide nucleation. The change of intergranular corrosion morphology after aging at 450 °C from discontinuous (aged for 2 h) to semi-continuous (aged for 20 h) and to continuous (aged for 200 h) is discussed in detail.Description
Keywords
Ferritic stainless steel, Intergranular corrosion, Segregation, Cr-Carbide, Aging
Other note
Citation
Hu, S, Mao, Y, Liu, X, Han, E-H & Hänninen, H 2020, ' Intergranular corrosion behavior of low-chromium ferritic stainless steel without Cr-carbide precipitation after aging ', Corrosion Science, vol. 166, 108420 . https://doi.org/10.1016/j.corsci.2019.108420