Fatigue Crack Growth Rate Behavior in Titanium Alloy Ti-5111 Weld Metal

Abstract

Fatigue crack growth rate (FCGR) tests were conducted on Titanium Alloy Ti-5111 weld metal in air, artificial seawater, and artificial seawater with an applied cathodic potential. The results indicated a minor effect of seawater in increasing FCGR of Ti-5111 weld metal. However, the application of a cathodic potential of 0.987 V versus Ag/AgCl reference electrode showed crack growth rates similar to FCGR in air. Additionally, comparisons are made regarding the FCGR behavior of Ti-5111 plate, Ti-100 (Ti-621-0.8Mo) plate, and Ti-5111 weld metal in both air and seawater. These results indicated that both high strength titanium alloy grades, including the base and weld metal, performed similarly in all test environments.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2004
Accession Number
ADA430233

Entities

People

  • Amy C. Stauffer
  • Ernest J. Czyryca

Organizations

  • Naval Surface Warfare Center Carderock Division

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alloys
  • Cracks
  • Electrodes
  • Elements
  • Environment
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Metals
  • Modulus Of Elasticity
  • Stress Corrosion Cracking
  • Test Methods
  • Titanium
  • Titanium Alloys
  • Toughness
  • United States Naval Academy
  • Weld Metal

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.
  • Metallurgy