PREVENTING DELAYED CRACKS IN SHIP WELDS (PART II)

This report discusses the causes of delayed cracking in ship steel welds and presents the steps necessary to prevent delayed cracking. Three factors, acting together, are responsible for the formation of delayed cracks: hydrogen dissolved in the weld, a hard microstructure in the weld or heat-affected zone, and high stresses in the weld joint. Each step that is taken to prevent delayed cracks has the purpose of eliminating or significantly reducing at least one of these factors.

• Corporate Authors:

  Battelle Columbus Laboratories

  505 King Avenue
  Columbus, OH  United States  43201
• Authors:
  • Mishler, H W
• Publication Date: 1976

Media Info

• Features: References;
• Pagination: 62 p.

Subject/Index Terms

• TRT Terms: Cold weather; Cracking; Electrodes; Embrittlement; Heat affected zone (Metals); Quality control; Training; Welding
• Identifier Terms: Ship Structure Committee
• Uncontrolled Terms: Cold cracking; Hydrogen embrittlement
• Old TRIS Terms: Crack formation; Weld crack prevention; Welder training; Welding electrodes; Welding quality control
• Subject Areas: Education and Training; Marine Transportation; Materials;

Filing Info

• Accession Number: 00148280
• Record Type: Publication
• Source Agency: Ship Structure Committee
• Report/Paper Numbers: SSC-262
• Contract Numbers: N00024-72-C-5326
• Files: TRIS
• Created Date: Feb 16 1977 12:00AM