Journal of Materials Science

, Volume 41, Issue 10, pp 3041–3044 | Cite as

Effect of aluminum content on the passivation behavior of Fe–Al alloys in sulfuric acid solution

  • Wen-Chi Chiang
  • Wann-Chiun Luu
  • Jiann-Kuo Wu


The passivation behavior of Fe–Al alloys (3.4, 10.4, 18.7, 19.4, 29.5, and 41.7 at % Al) and Fe–Al alloys (19.5 and 29.0 at % Al) with 5.1 at % Cr addition in 0.1 N H2SO4 is reported in this paper. The behavior has been evaluated by potentiodynamic polarization measurements. The results show the Fe–Al alloys, which the Al content of alloy exceeds 19 at %, have wide passivation regions with low passivation current. However, when the Al content of Fe–Al alloys exceeds this range, the increment of Al content has slight influence on passivation behavior compared with ternary Cr addition.


Polymer Sulfuric Acid H2SO4 Acid Solution Aluminum Content 
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Copyright information

© Springer Science + Business Media, Inc. 2006

Authors and Affiliations

  1. 1.Institute of Materials EngineeringNational Taiwan Ocean UniversityKeelungTaiwan
  2. 2.Department of Manufacturing Engineering and ManagementTechnical University of DenmarkLyngbyDenmark

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