Threshold Corrosion Fatigue of Welded Shipbuilding Steels.

Abstract

This report provides an overview of the development and verification of a test methodology for near-threshold corrosion fatigue of welded high strength, low alloy (HSLA) shipbuilding steels. The method permits the direct evaluation of the corrosion fatigue resistance of weld metal, heat-affected zone (HAZ), and base metal regions. Experimental powder-cored electrode filler metals were prepared to evaluate the effect of weld metal carbon and copper contents on weldment mechanical properties in the as-welded condition. Welded joint geometries used in this study were developed in the first phase of this project. This report incorporates findings from phases one and two. The study concludes with recommendations concerning the further development of the partial hydrogen embrittlement method to accelerate the collection of near threshold corrosion fatigue data.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1992
Accession Number
ADA258160

Entities

People

  • G. H. Reynolds
  • J. A. Todd

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Base Metal
  • Cathodic Protection
  • Chemical Analysis
  • Chemistry
  • Coast Guard
  • Corrosion
  • Crack Propagation
  • Electron Microscopy
  • Geometry
  • Grain Size
  • Materials
  • Mechanical Properties
  • Mechanics
  • Plastic Explosives
  • Strain Gages
  • Test And Evaluation
  • Weld Metal

Fields of Study

  • Materials science

Readers

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