EXAMPLES OF CORROSION OF MATERIALS EXPOSED ON STU II-1 IN THE DEEP OCEAN (2340 Feet of Depth for 197 Days),
 Technical Note N-695, Naval Civil Engineering Laboratory, Port Hueneme, CA, by Fred M. Reinhart, February 1965, 33 pages.

Preliminary results of corrosion of materials, based solely upon visual examinations, exposed in 2340 feet of water in the Pacific Ocean for 197 days showed only-a few cases of deterioration different from those usually found in moving surface sea water. The Clad layers on two aluminum alloys corroded at a much faster rate than normal for surface sea water. The lace-work and undersurface types of attack on certain stainless steels appear to be similar to types of attackby stagnant surface sea water; this could be attributed to low oxygen content as well as lack of a significant movement of deep sea water.

Other materials, both metallic and nonmetallic, were not seriously deteriorated and some showed absolutely no evidence of deterioration.

In order to obtain meaningful results, considerable critical examination of the various specimens will be required.

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