Aqueous Corrosion Characteristics of Iron Aluminides


Article Preview

Aqueous corrosion behaviors of Fe3Al-based iron aluminides were investigated. From the result of cyclic anodic polarization tests conducted in 3.5 wt.% NaCl solution at 25, 48, 72 and 95°C, as the temperature increased, the resistance to pitting corrosion decreased significantly, especially over the range of 25~48°C. From the result of crevice corrosion tests, no crevice corrosion occurred on FAL-Mo in the lower chloride-containing solution (200 ppm Cl-), however, FAL-Mo did not perform as well as the 304L SS in the higher chloride-containing solution (3.5 wt.% NaCl). From the result of anodic polarization tests performed in sulfur-compound solutions, additions of Cr and Mo to the Fe3Al-based iron aluminides tend to improve the aqueous corrosion resistance. Aqueous corrosion behaviors with different Al content evaluated by cyclic anodic polarization test in the chloride-containing solution exhibited the more stable passive behavior and the higher pitting resistance as Al contents increased.



Advanced Materials Research (Volumes 26-28)

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee




Y. H. Yoo and J. G. Kim, "Aqueous Corrosion Characteristics of Iron Aluminides", Advanced Materials Research, Vols. 26-28, pp. 23-26, 2007

Online since:

October 2007




[1] C.T. Liu, J.O. Stiegler and F. H. Froes: Ordered intermetallics, in: volume 2 of Metals Handbooks, 10th ed., ASM International, USA (1990).

[2] S. Sriram, R. Balasubramaniam, M.N. Mungole, S. Bharagava and R.G. Baligidad: Corros. Sci. Vol. 48 (2006), p.1059.

[3] Y. S Choi and J.G. Kim: Mater. Sci. Eng. A Vol. 333 (2002), p.336.

[4] G. Sharma, K.B. Gaonkar and P.R. Singh: Mater. Lett. Vol. 61 (2007), p.971.

[5] E. Godlewska: Intermetallics Vol. 14 (2006), p.280.

[10] -2.

[10] -1.

[10] [0] [10] [1] [10] [2] [10] [3] [10] [4] [10] [5] -600 -400 -200.

200 400 600 800 1000 1200 1400 1600 1800 Potential (mVSHE) Current density (uA/cm.

[2] ) FAP-Y CM-Mo FAL-Mo.

Fetching data from Crossref.
This may take some time to load.