Effects of Fe on Oxidation of Ni-20Cr and Ni-30Cr Alloys at 800 °C in Wet CO2 Gas

• Published in: High temperature corrosion of materials Vol. 94; no. 3-4; pp. 219 - 233
• Main Authors: Xie, Yun, Zhang, Jianqiang, Young, David J.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.10.2020; Springer Nature B.V
• Subjects: Alloy development; Alloying effects; Carbon dioxide; Chemistry and Materials Science; Chromium oxides; Corrosion and Coatings; Inorganic Chemistry; Iron; Materials Science; Metallic Materials; Nickel chromium alloys; Original Paper; Oxidation; Scale (corrosion); Spallation; Transport properties; Tribology; Water vapor; Water vapour; Alloy; Internal oxidation; High temperature oxidation

The oxidation behaviour of model alloys Ni-(20, 30)Cr (wt.%) with (0, 1, 5, 15%) Fe was investigated at 800 °C in Ar-20%CO 2 -20%H 2 O gas. All 20Cr alloys developed a multilayered scale, and the outer scale layers on alloys containing iron were subject to spallation. However, all 30Cr alloys develo...