Publication detail

Microstructure and mechanical properties of hybrid LasTIG welds of HSLA steel

ŠEBESTOVÁ, H. HORNÍK, P. MRŇA, L. DOLEŽAL, P.

English title

Microstructure and mechanical properties of hybrid LasTIG welds of HSLA steel

Type

conference paper

Language

en

Original abstract

Laser welding accompanied by tungsten inert gas welding was applied for 3 mm thick high strength low alloy S460MC steel butt joining with the aim to study the effect of arc electric current on weld cooling rate and thus weld microstructure and mechanical properties. Preheating realized by the arc decreased microhardness peaks in coarse-grained heat affected zone while strength properties were not degraded. Dissimilar S460MC to DC01 mild steel welds were performed with different positions of tungsten electrode towards the laser beam trajectory to maintain uniform weld profile.

English abstract

Laser welding accompanied by tungsten inert gas welding was applied for 3 mm thick high strength low alloy S460MC steel butt joining with the aim to study the effect of arc electric current on weld cooling rate and thus weld microstructure and mechanical properties. Preheating realized by the arc decreased microhardness peaks in coarse-grained heat affected zone while strength properties were not degraded. Dissimilar S460MC to DC01 mild steel welds were performed with different positions of tungsten electrode towards the laser beam trajectory to maintain uniform weld profile.

Keywords in English

Laser beam welding, welding, filler wire

Released

06.09.2018

Publisher

Elsevier B.V.

ISSN

2212-8271

Book

10TH CIRP CONFERENCE ON PHOTONIC TECHNOLOGIES

Number

74

Pages from–to

743–747

Pages count

5

BIBTEX


@inproceedings{BUT156183,
  author="Hana {Šebestová} and Petr {Horník} and Libor {Mrňa} and Pavel {Doležal},
  title="Microstructure and mechanical properties of hybrid LasTIG welds of HSLA steel",
  booktitle="10TH CIRP CONFERENCE ON PHOTONIC TECHNOLOGIES ",
  year="2018",
  number="74",
  month="September",
  pages="743--747",
  publisher="Elsevier B.V.",
  issn="2212-8271"
}