Environmentally Assisted Cracking of High Strength Beta Titanium Alloys.

Abstract

The objective of this integrated research program is to define the conditions under which high strength Beta-titanium alloys resist environmentally assisted cracking (EAC) in marine environments. Specific goals are to: (1) characterize EAC for metallurgical. chemical and mechanical conditions that could - destabilize crack tip passive films to promote local dissolution and hydrogen uptake, (2) test the hydrogen embrittlement mechanism for EAC, and (3) develop a mechanism-based model of EAC by integrating crack chemistry. surface dissolution and repassivation kinetics. hydrogen uptake to trap sites, and crack tip process zone micromechanics and damage. This final report presents a summary of the results and includes papers published during the period of this grant from September, 1951 to September, 1994.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1994
Accession Number
ADA289156

Entities

People

  • John R. Scully
  • R. G. Kelly
  • R. P. Ganglogg

Organizations

  • University of Virginia

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Biomedical
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Chemical Compounds
  • Chemical Engineering
  • Chemical Synthesis
  • Chemistry
  • Computer Programs
  • Crystal Structure
  • Electrochemical Reactions
  • Materials
  • Materials Laboratories
  • Materials Science
  • Materials Testing
  • Measurement
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Solid Solutions
  • Transition Temperature

Readers

  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.
  • Technical Research and Report Writing.