Accession Number : ADA304242

Title :   Investigation into the Susceptibility of Corrosion Resistant Alloys to Biocorrosion.

Descriptive Note : Final rept. Sep 91-Oct 95,

Corporate Author : STATE UNIV OF NEW YORK AT STONY BROOK DEPT OF MATERIALS SCIENCE AND ENGINEERIN G

Personal Author(s) : Clayton, Clive R.

PDF Url : ADA304242

Report Date : 02 FEB 1996

Pagination or Media Count : 251

Abstract : The influence of sulfate-reducing bacteria (SRB) on the passivity of Mo-bearing (type 317L) and low Mo content (type 304) austenitic stainless steels (SS) was investigated by x-ray photoelectron spectroscopy (XPS), microbiological and electrochemical techniques. Samples were exposed to SRB, and then the resulting surfaces were analyzed by XPS, and the corrosion resistance by potentiodynamic polarization in deaerated 0.1 M HCI. In order to further understand their passivity, the SRB-exposed samples were also analyzed by XPS after potentiostatic polarization at a passive potential in the hydrochloric solution. The characterization was performed under two surface conditions: unrinsed and rinsed by deaerated alcohol and deionized water. jg p6 & 7

Descriptors :   *CORROSION RESISTANT ALLOYS, POLARIZATION, WATER, BACTERIA, PASSIVE SYSTEMS, THESES, STAINLESS STEEL, ELECTROCHEMISTRY, MOLYBDENUM, AUSTENITE, SURFACE PROPERTIES, CORROSION RESISTANCE, X RAY PHOTOELECTRON SPECTROSCOPY, POTENTIOSTATIC TECHNIQUES, SULFATES, BIOTECHNOLOGY, DEIONIZATION, ALCOHOLS, REDUCTION(CHEMISTRY), DEAERATION, MICROBIOLOGICAL TESTS.

Subject Categories : Properties of Metals and Alloys
      Physical Chemistry
      Biomedical Instrumentation and Bioengineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE