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

• DOI: 10.1016/j.corsci.2020.108961
• Publication Date: 2020-08-20T16:08:21Z
• Authors: A. Persdotter; J. Eklund; J. Liske; T. Jonsson
• Keywords: Nichrome

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 on wide set of (Fe,Cr,Al/Ni)-model alloys by thermogravimertric analysis, ion/electron microscopy and X-ray spectroscopy. results show that scales exhibit similar microstructural features all FeCr(Ni/Al)-alloys, growth rate greatly influenced alloy composition some while has little influence others. observation may be great help in selection development materials use harshly corrosive environments.