Accession Number : ADA315900

Title :   An Analysis of Possible Microbiologically Influenced Crevice Corrosion of 316 Stainless Steel in a Seawater Environment.

Descriptive Note : Master's thesis,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF OCEAN ENGINEERING

Personal Author(s) : Howell, William R., Jr

PDF Url : ADA315900

Report Date : SEP 1996

Pagination or Media Count : 66

Abstract : An analysis was conducted of 316 Stainless Steel components which exhibited an unusual degree of crevice corrosion after exposure to seawater for approximately one year. After conducting research into the possible chemical and microbiological mechanisms for the corrosion, a metallurgical and microscopic examination of the components was performed. Results of these examinations indicated that the corrosion observed was probably the result of an interaction between the Gallionella aerobic iron bacteria and the anaerobic sulfate reducing bacteria Desulfovibrio and Desulfomaculum.

Descriptors :   *STAINLESS STEEL, *CORROSION RESISTANCE, *SEA WATER, *MICROBIOLOGY, *METALLURGY, ENVIRONMENTS, CORROSION, EXPOSURE(GENERAL), CRACKS, MICROSCOPY, IRON, CHEMICAL REACTIONS, MEDICAL EXAMINATION, AEROBIC BACTERIA.

Subject Categories : Microbiology
      Physical and Dynamic Oceanography
      Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE