Submerged arc welding of stainless steel and the challenge from the laser welding process

N.A. McPherson, K. Chi, T.N. Baker

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

The welding of austenitic and duplex stainless steels has been reassessed by questioning traditional requirements of the weld metal and/or the heat affected zone (HAZ). The use of high dilution submerged arc welding of austenitic and duplex stainless steels has been shown to produce acceptable properties, despite the high heat input used in some instances. Corrosion characteristics have been established as being acceptable too. These findings have been further validated by examination of the weld region material using thin foil transmission electron microscopy (TEM). This showed that while some intermetallic phases were present, they did not adversely affect the weld metal properties. In addition, an examination has taken place of Nd:YAG laser-welded austenitic and duplex stainless steels, to establish the potential viability of this route compared to the submerged arc welding process. The material properties, including the relevant corrosion testing, have been found to be acceptable. TEM has again shown that some intermetallic phases are present in the weld metal. It has been suggested that a segregation mechanism is responsible for their presence in this case.
LanguageEnglish
Pages174-179
Number of pages5
JournalJournal of Materials Processing Technology
Volume134
Issue number2
DOIs
Publication statusPublished - 10 Mar 2003

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Laser Welding
Submerged arc welding
Laser beam welding
Stainless Steel
Welding
Intermetallics
Welds
Arc of a curve
Stainless steel
Metals
Corrosion
Transmission Electron Microscopy
Heat Affected Zone
Nd:YAG Laser
Segregation
Transmission electron microscopy
Viability
Material Properties
Heat affected zone
Heat

Keywords

  • stainless steel
  • duplex stainless steel
  • submerged arc welding
  • arc welding
  • laser welding

Cite this

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Submerged arc welding of stainless steel and the challenge from the laser welding process. / McPherson, N.A.; Chi, K.; Baker, T.N.

In: Journal of Materials Processing Technology, Vol. 134, No. 2, 10.03.2003, p. 174-179.

Research output: Contribution to journalArticle

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