Effects of Pollutants and Micro-Organisms on the Absorption of Electrolytic Hydrogen in Iron

Abstract

The objective of this research was to define the conditions under which pollutants, in particular, those produced by bacteria such as sulfide end products of the SRB, affect the amount of hydrogen absorption by iron/steel. The research focused on thiosulfate and H2S as promoters of hydrogen absorption, as well as some potential inhibitor species, and included both modeling and hydrogen permeation experiments. For improved understanding of how these species affect the absorption of hydrogen into steel, the Iyer-Pickering-Zamenzadeh (IPZ) analysis method was first generalized to include Frumkin adsorption of the hydrogen on the steel's surface and then used to analyze the measured steady state hydrogen permeation data. The results are described in the six publications to date and one review paper that is in preparation.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2001
Accession Number
ADA396376

Entities

People

  • H. W. Pickering

Organizations

  • Pennsylvania State University

Tags

DTIC Thesaurus Topics

  • Absorption
  • Adsorption
  • Chemical Reaction Properties
  • Chemistry
  • Corrosion
  • Current Density
  • Data Analysis
  • Decomposition
  • Desorption
  • Diffusion Coefficient
  • Electrochemistry
  • Hydrogen
  • Hydrogen Embrittlement
  • Materials
  • Materials Science
  • Protons
  • Sorption

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies