SOME ASPECTS OF THE PRACTICAL CONTROL OF WELD COLD CRACKING

A fracture mechanics approach has been used to analyse the problems of hydrogen induced heat affected zone cracking of structural steels. The approach provides a new perspective on the relative importance of the factors affecting cracking in particular the effect of weld metal strength, hydrogen concentration and inclusion parameters are highlighted and the inherent scatter in some of the common weldability tests explained. Recommendations are made for the control of maximum weld metal strength, for circumstances where special control of hydrogen potential of consumables is justified and for tests to compare materials and assess the risks of cracking in specific circumstances. (A) /TRRL/

• Corporate Authors:

  Australian Welding Institute

  118 Alfred Street
  Milsons Point, Milsons Point,   Australia 
• Authors:
  • BAKER, R G
• Publication Date: 1976

Language

• English

Media Info

• Features: Figures; References;
• Pagination: 24 p.

Subject/Index Terms

• TRT Terms: Cold weather; Conferences; Cracking; Defects; Heat; Hydrogen; Steel; Strength of materials; Structural steel; Weld metal; Welding; Welds
• Uncontrolled Terms: Cold cracking; Weld defects
• ITRD Terms: 8525: Conference; 5211: Cracking; 6743: Heat; 7187: Hydrogen; 4542: Steel; 5544: Strength (mater); 3852: Welding
• Subject Areas: Geotechnology; Highways; Materials; I34: Steels and Metals;

Filing Info

• Accession Number: 00164202
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Analytic
• Files: ITRD, TRIS
• Created Date: May 18 1978 12:00AM