Anodic Polarization Behavior of Iron-Aluminum Alloys in Sulphuric Acid.

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Abstract:

The anodic polarization of iron-aluminum alloys has been investigated by the potentiostatic technique in hydrogen saturated sulfuric acid solutions. All alloys containing up to 20 wo aluminum exhibited active, passive and transpassive characteristics. An improvement in corrosion resistance was seen for alloys with aluminum content of more than 16 wo which may be attributed to the ordered phase Fe3A1. Micrographs of the surface of anodically polarized alloy were examined at selected potentials, and the surface topography showed a significant difference in accordance with the reaction mechanism in each step of anodic polarization. Author

Author(s):
Saegusa, F.
Author Organization(s):
WATERVLIET ARSENAL N Y
Descriptive Note:
Technical rept.,
Pagination:
0039

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
WVT-TR-76023
Project Number(s):
DA-1-T-161101-A-91-A, Pron-M1-6-51700-02-M7-M7
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*ALUMINUM ALLOYS, *IRON ALLOYS, *ANODIC POLARIZATION, SOLUTIONS(MIXTURES), HYDROGEN, SURFACE PROPERTIES, CORROSION RESISTANCE, POTENTIOSTATIC TECHNIQUES, SULFURIC ACID, MICROPHOTOGRAPHY
Field(s)/Group(s):
Physical Chemistry, Properties of Metals and Alloys, Fabrication Metallurgy
Report Date:
1976 Jun 01