CORROSION BEHAVIOUR OF HEAT-AFFECTED ZONES IN WELDED SHIPS

The object of the report is to examine closely the extent to which the composition of a shipbuilding steel as well as the important technological welding parameters affect the susceptibility to corrosion of the heat-affected zone. The effects of the manganese and carbon contents of the heat input equivalent, welding temperature, and of the microstructure are analyzed. The corrosion is caused primarily by the fact that the heat-affected zone, due to metastable low temperature microstructural constituents, may assume anodic character under seawater conditions, which leads to formation of macrogalvanic cells.

• Corporate Authors:

  Jernkontoret

  Kungstradgardsgatan 10
  Stockholm C,   Sweden 
• Authors:
  • Relander, K
  • Onnela, K
• Publication Date: 1970

Media Info

• Serial:
  • Jernkontorets Annaler
  • Volume: 154
  • Issue Number: 4
  • Publisher: Jernkontoret

Subject/Index Terms

• TRT Terms: Corrosion; Galvanic corrosion; Heat affected zone (Metals); Welding
• Old TRIS Terms: Corrosion mechanisms
• Subject Areas: Construction; Marine Transportation;

Filing Info

• Accession Number: 00015463
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: May 13 1971 12:00AM