Beyond breakaway corrosion – Influence of chromium, nickel and aluminum on corrosion of iron-based alloys at 600 °C
Artikel i vetenskaplig tidskrift, 2020

Breakaway corrosion remains a challenge for many high temperature applications. The oxide formed after breakaway is commonly considered non-protective. This study investigates the protective properties after breakaway on a wide set of (Fe,Cr,Al/Ni)-model alloys by thermogravimertric analysis, ion/electron microscopy and X-ray spectroscopy. The results show that the oxide scales formed after breakaway exhibit similar microstructural features on all FeCr(Ni/Al)-alloys, and that the growth rate is greatly influenced by alloy composition for some alloys while is has little influence on others. This observation may be of great help in the selection and development of materials for use in harshly corrosive environments.

Primary and Secondary corrosion protection

Oxide microstructure

High temperature corrosion

Iron oxide

Breakaway oxidation

Model alloys

Författare

Amanda Persdotter

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi

Johan Eklund

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi

Jesper Liske

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi

Torbjörn Jonsson

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi

Corrosion Science

0010-938X (ISSN)

Vol. 177 108961

Ämneskategorier

Materialkemi

Metallurgi och metalliska material

Korrosionsteknik

DOI

10.1016/j.corsci.2020.108961

Mer information

Senast uppdaterat

2020-10-20