Corrosion behavior of fe-cr alloys in Ar-10%O2 atmosphere

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The corrosion of four Fe-Cr alloys (Cr: 9, 12, 20, and 25%) with different Cr contents were subjected to cyclic oxidation furnace in Ar-10%O2 atmosphere at 950oC for 120 h. The samples after oxidation were investigated by using X-ray diffraction (XRD), optical metallography and SEM/EDS. The results indicated that increasing Cr content reduced the oxidation rate and the scale cracking. Alloys with less Cr content occurred breakaway oxidation due to formation of Fe-rich oxide scale. However, a thin protective chromia scale was observed on alloys with Cr ≥ 20%. The corrosion behaviour on Fe-Cr alloy was then discussed based on experimental observation.

Original languageEnglish
Title of host publicationKey Engineering Materials
Pages1250-1254
Number of pages5
Volume462-463
DOIs
Publication statusPublished - 2011
Event8th International Conference on Fracture and Strength of Solids 2010, FEOFS2010 - Kuala Lumpur
Duration: 7 Jun 20109 Jun 2010

Publication series

NameKey Engineering Materials
Volume462-463
ISSN (Print)10139826

Other

Other8th International Conference on Fracture and Strength of Solids 2010, FEOFS2010
CityKuala Lumpur
Period7/6/109/6/10

Fingerprint

Corrosion
Oxidation
Metallography
Oxides
Energy dispersive spectroscopy
Furnaces
X ray diffraction
Scanning electron microscopy

Keywords

  • Chromia
  • Fe-Cr alloys
  • Scale cracking and breakaway oxidation

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Othman, N. K., Othman, N., & Jalar @ Jalil, A. (2011). Corrosion behavior of fe-cr alloys in Ar-10%O2 atmosphere. In Key Engineering Materials (Vol. 462-463, pp. 1250-1254). (Key Engineering Materials; Vol. 462-463). https://doi.org/10.4028/www.scientific.net/KEM.462-463.1250

Corrosion behavior of fe-cr alloys in Ar-10%O2 atmosphere. / Othman, Norinsan Kamil; Othman, N.; Jalar @ Jalil, Azman.

Key Engineering Materials. Vol. 462-463 2011. p. 1250-1254 (Key Engineering Materials; Vol. 462-463).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Othman, NK, Othman, N & Jalar @ Jalil, A 2011, Corrosion behavior of fe-cr alloys in Ar-10%O2 atmosphere. in Key Engineering Materials. vol. 462-463, Key Engineering Materials, vol. 462-463, pp. 1250-1254, 8th International Conference on Fracture and Strength of Solids 2010, FEOFS2010, Kuala Lumpur, 7/6/10. https://doi.org/10.4028/www.scientific.net/KEM.462-463.1250
Othman NK, Othman N, Jalar @ Jalil A. Corrosion behavior of fe-cr alloys in Ar-10%O2 atmosphere. In Key Engineering Materials. Vol. 462-463. 2011. p. 1250-1254. (Key Engineering Materials). https://doi.org/10.4028/www.scientific.net/KEM.462-463.1250
Othman, Norinsan Kamil ; Othman, N. ; Jalar @ Jalil, Azman. / Corrosion behavior of fe-cr alloys in Ar-10%O2 atmosphere. Key Engineering Materials. Vol. 462-463 2011. pp. 1250-1254 (Key Engineering Materials).
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