Multi-pass laser and hybrid laser-arc narrow-gap welding of steel butt joints

V. Shelyagin, V. Khaskin, A. Bernatskyi, A. Siora, V. Sydorets, D. A. Chinakhov

Research output: Chapter in Book/Report/Conference proceedingChapter

13 Citations (Scopus)


Multi-pass laser and laser-arc narrow-gap welding make it possible to obtain high-quality butt joints of large-thickness pipe steels with hardness up to 2600…2800 MPa and toughness close to the base metal toughness at a temperature of 20°C. When multi-pass welding methods are used, the subsequent pass makes heat treatment of the previous ones, and reduces the rate of their cooling yet. This allows excluding heat treatment of the joint after welding, which significantly reduces the time and costs for manufacturing large-sized structures.

Original languageEnglish
Title of host publicationMaterials and Processing Technology II
EditorsDmitry A. Chinakhov, Dmitry A. Chinakhov
PublisherTrans Tech Publications Ltd
Number of pages8
ISBN (Print)9783035713978
Publication statusPublished - 1 Jan 2018

Publication series

NameMaterials Science Forum
Volume927 MSF
ISSN (Print)0255-5476


  • Consumable electrode
  • Filler wire
  • Hardness
  • Hybrid process
  • Impact toughness
  • Laser welding
  • Number of passes
  • Structure
  • Thick carbon steels

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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