The Role of Microorganisms in Marine Corrosion
Abstract
The research objective of this project is to investigate the importance of microbial processes in hydrogen embrittlement of metals. During the past year we have used a sophisticated adaptation of the Devanathan cell to quantify bacterial hydrogen permeation through a defined metal. We found that hydrogen production under bacterial films is sufficient to produce permeation currents equivalent to measured thresholds for hydrogen-induced cracking of steels. During the next year we will stress metals in the presence of biofilms of hydrogen-producing bacteria in order to measure directly damage to metals caused by bacterial hydrogen. Keywords: Biodeterioration.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 12, 1990
- Accession Number
- ADA219382
Entities
People
- Ralph Mitchell
Organizations
- Harvard University