Accession Number:

ADA058814

Title:

Corrosion of 5456-H117 Aluminum in High Velocity Seawater.

Descriptive Note:

Final rept. Jun 77-Jun 78,

Corporate Author:

OCEAN CITY RESEARCH CORP N J

Personal Author(s):

Report Date:

1978-06-01

Pagination or Media Count:

87.0

Abstract:

A study was undertaken to examine the corrosion behavior of 5456-H117 aluminum in high velocity seawater. Experimental data was obtained using a high velocity flow channel operated with natural seawater. The results show that both the rate and mode of corrosion are velocity-dependent. The corrosion rate was shown to increase significantly with increasing velocity. Morphological changes were observed as a function of velocity. The observed changes suggest that the basic mechanism for high velocity corrosion of 5456-H117 aluminum involves film disruptionremoval leading to enhanced micropitting about intermetallic particles. Author

Subject Categories:

  • Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE