Properties of the welded joints of manganese steel made by low-frequency pulsed arc welding

Yu N. Saraev, V. P. Bezborodov, S. V. Gladovskii, N. I. Golikov

Research output: Contribution to journalArticle

Abstract

The structure, the mechanical properties, the impact toughness, and the fracture mechanisms of the welded joints made of steel 09G2S plates by direct current welding and pulsed arc welding with a modulated arc current in the frequency range 0.25–5.0 Hz are studied. The application of low-frequency pulsed arc welding allowed us to form welded joints with a fine-grained structure in the weld metal and the heat-affected zone and to achieve a higher impact toughness and a longer cyclic fatigue life as compared to the welded joints fabricated by direct current welding. The achieved effect manifests itself over the entire testing range from 20 to–60°C.

Original languageEnglish
Pages (from-to)287-292
Number of pages6
JournalRussian Metallurgy (Metally)
Volume2017
Issue number4
DOIs
Publication statusPublished - 1 Apr 2017

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Keywords

  • heat-affected zone
  • impact toughness
  • low-frequency current modulation
  • mechanical properties
  • pulsed arc welding
  • welded joint

ASJC Scopus subject areas

  • Metals and Alloys

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