THE INTRODUCTION OF DISCONTINUITIES IN HIGH STRENGTH STEEL WELDMENTS

THE OBJECTIVE WAS TO DEVELOP METHODS FOR CONSISTENTLY CREATING POROSITY, SLAG INCLUSIONS, LACK OF FUSION, AND HYDROGEN CROSS-CRACKING DISCONTINUITIES IN WELDS TO EVALUATE THEIR EFFECTS ON THE PROPERTIES OF WELDS. TO ACCOMPLISH THIS OBJECTIVE, WELD DEPOSITION PROCEDURES WERE ALTERED SYSTEMATICALLY TO DEVELOP WELDING TECHNIQUES CAPABLE OF PRODUCING A SPECIFIC DISCONTINUITY TYPE AND SIZE. THE TECHNIQUES USED INCLUDED BOTH ELECTRICAL AND MECHANICAL PERTURBATIONS OF THE WELDING PARAMETERS. IT PROVED POSSIBLE TO IMPLANT WELD DISCONTINUITIES WITH GOOD REPRODUCIBILITY. IT WAS FOUND, HOWEVER, THAT MECHANICAL PERTURBATIONS WERE MORE RELIABLE FOR ACCURATE REPRODUCTION OF DISCONTINUITIES. /AUTHOR/

• Corporate Authors:

  Construction Engineering Research Laboratory

  Army Corps of Engineers, P.O. Box 4005
  Champaign, IL  United States  61820
• Authors:
  • Carlson, K W
  • Lawrence, F V
  • Radziminski, J B
• Publication Date: 1972-12

Media Info

• Features: Figures; References; Tables;
• Pagination: 15 p.
• Serial:
  • Issue Number: m-27

Subject/Index Terms

• TRT Terms: High strength steel; Welding
• Uncontrolled Terms: Discontinuity
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00217308
• Record Type: Publication
• Report/Paper Numbers: Prel Rept
• Files: TRIS
• Created Date: May 7 1973 12:00AM