EFFECT OF DISCONTINUITIES ON WELD STRENGTH OF ALUMINUM ALLOYS

RESULTS OF RADIOGRAPHIC EXAMINATION AND TENSILE TESTS OF TWENTY-FIVE EXAMPLES OF WELDED JOINTS ARE PRESENTED TO DOCUMENT THE EFFECTS OF POROSITY AND/OR TUNGSTEN INCLUSIONS ON THE ULTIMATE STRENGTH. IT IS INDICATED THAT WELDS IN LOW-STRENGTH AND MEDIUM- STRENGTH ALLOYS CAN TOLERATE MORE POROSITY THAN HAS BEEN GENERALLY ACCEPTED (RATING OF 1.5 ON THE ALCOA 7-FILM STANDARD) AND FURTHER THEY CAN TOLERATE MORE POROSITY THAN CAN WELDS IN ALLOYS OF HIGHER STRENGTH (3003 VS 6351, FOR EXAMPLE). A SERIES OF REPRODUCTIONS OF RADIOGRAPHS OF POROSITY AND/OR TUNGSTEN INCLUSIONS IN WELDMENTS OF VARIOUS COMBINATIONS OF WELDABLE ALUMINUM ALLOYS AND THE RESULTS OF AN EVALUATION OF THE EFFECTS OF THAT POROSITY ON THE STRENGTH OF THE WELDMENT ARE PROVIDED. /AUTHOR/

• Supplemental Notes:
  • Vol 38, No 10, PP 427-S - 433-S
• Corporate Authors:

  Welding Research Council Engr Fdn

  ,    
• Authors:
  • Nelson, F G
  • Holt, M
• Publication Date: 1971-10

Subject/Index Terms

• TRT Terms: Aluminum; Joints; Porosity; Strength of materials; Weldments; Welds
• Uncontrolled Terms: Welded joints
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00217173
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 24 1972 12:00AM