Welding in the World

, Volume 55, Issue 11–12, pp 21–30 | Cite as

Weldability of Novel Fe-Mn High-Strength Steels for Automotive Applications

  • Daniel Keil
  • Manuela Zinke
  • Helge Pries
Peer-Reviewed Section


High-Mn austenitic steels with TWIP and TRIP effect are characterized by an exceptional combination of high plasticity and high strength making them ideal for use in crash-relevant automobile components. At this point, European and international steel producers are facing the market launch of these steels, without detailed information regarding their weldability. This paper presents results from a publicly funded research project concerning the weldability of different systems of uncoated Fe-Mn alloys for gas metal arc welding. The different alloying concepts were produced by the Max Planck Institute for Iron Research GmbH in Düsseldorf specifically for this research project. For gas metal arc welding some newly developed metal cored wires were used and the heat input was varied by using different arc welding processes (short arc, cold metal transfer, cold metal transfer + pulsed arc). In addition to the metallurgical characteristics of the base metals and welds (segregation behaviour, grain size) the paper presents results on the quality of the welds depending on welding process and filler material.

IIW-Thesaurus keywords

Austenite GMA welding High strength steels Manganese Tensile tests Thermal cycling Welded joints 


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Copyright information

© International Institute of Welding 2011

Authors and Affiliations

  • Daniel Keil
    • 1
  • Manuela Zinke
    • 1
  • Helge Pries
    • 2
  1. 1.Institute of Materials and Joining TechnologyOtto von Guericke UniversityMagdeburgGermany
  2. 2.Institute of Joining and WeldingBraunschweig University of TechnologyGermany

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