Prediction of Hydrogen Entry and Permeation in Metals and Alloys

Abstract

This Grant focused on the investigation of the factors which affect hydrogen entry and permeation into metals/alloys that by themselves or in combination with other materials are used under conditions for which hydrogen embrittlement and cracking are a major concern. Factors that affect H entry include a broad range of metallurgical, environmental and interface properties such as adsorption, surface segregation, surface films and recesses in the surface. Research during this grant period focused on understanding how these parameters control hydrogen entry. The specific investigations included both aqueous and gas phase charging of hydrogen, utilizing primarily electrochemical techniques, in particular hydrogen permeation with the IPZ model, and microscopic methods in the case of aqueous phase charging, and ultra high resolution scanning tunneling microscopy (STM) in the case of gas phase charging.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1993
Accession Number
ADA276637

Entities

People

  • H. W. Pickering

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Adsorption
  • Aerial Warfare
  • Alloys
  • Chemical Engineering
  • Chemistry
  • Corrosion
  • Corrosion Resistance
  • Engineering
  • High Resolution
  • Hydrogen Embrittlement
  • Materials
  • Materials Science
  • Mechanical Properties
  • Metallurgy
  • Military Research
  • Surface Warfare
  • Warfare

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Thin Film Deposition Science.