THE APPLICATION OF ACOUSTIC EMISSION TO IN-PROCESS INSPECTION OF WELDS

EXPERIMENTAL RESULTS SHOW THAT CRACKS AND POROSITY IN THE WELDS DISCUSSED IN THIS PAPER EMIT ACOUSTIC SIGNALS DURING AND AFTER JOINT FUSION; THAT SOME WELD DEFECTS NOT DETECTED BY RADIOGRAPHY WERE DETECTED BY SPECIALLY DESIGNED TRANSDUCERS SENSITIVE TO THE ACOUSTIC SIGNALS EMITTED BY THE WELD DEFECTS, THE VERIFICATION BEING BY METALLOGRAPHIC SECTIONING; THAT THE ACOUSTIC EMISSION RATE FROM WELD DEFECTS IS A FUNCTION OF THE WELD DEFECT TEMPERATURE; THAT THERE IS A RELATIONSHIP BETWEEN THE ACOUSTIC EMISSION COUNT AND THE NUGGET DIAMETER OF RESISTANCE WELDS, AND THAT THE WELD BEAD CONFORMATION ON SUBMERGED ARC WELDS IS RELATED TO THE CHANGES IN THE ACOUSTIC-EMISSION RATE RECORDED DURING WELDING. /AUTHOR/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00255327
• Supplemental Notes:
  • Vol 28, No 6, PP 135-139, 144, 10 FIG, 4 REF
• Authors:
  • Jolly, W D
• Publication Date: 1970-6

Media Info

• Serial:
  • Materials Evaluation
  • Publisher: American Society for Nondestructive Testing
  • ISSN: 0025-5327

Subject/Index Terms

• TRT Terms: Acoustic measuring instruments; Acoustics; Defects; Inspection; Transducers; Weldments; Welds
• Uncontrolled Terms: Weld defects
• Old TRIS Terms: Acoustic measurement
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00216991
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 17 1970 12:00AM