English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Induction-assisted laser beam welding of a thermomechanically rolled HSLA S500MC steel: A microstructure and residual stress assessment

MPS-Authors
/persons/resource/persons125089

Coelho,  Rodrigo Santiago
Microstructure Characterization, Material Diagnostics and Steel Technology, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;
Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, 12489 Berlin, Germany;

/persons/resource/persons125091

Corpas Garcia,  Maria
Materials Testing, Material Diagnostics and Steel Technology, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

/persons/resource/persons125212

Kaysser-Pyzalla,  Anke Rita
Material Diagnostics and Steel Technology, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;
Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, 12489 Berlin, Germany;

/persons/resource/persons125316

Pinto,  Haroldo Cavalcanti
Materials Testing, Material Diagnostics and Steel Technology, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;
Universidade de São Paulo, Escola de Engenharia de São Carlos, CEP 13566-590 São Carlos, SP, Brazil;

External Resource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Coelho, R. S., Corpas Garcia, M., Moreto, J. A., Jahn, A., Standfuß, J., Kaysser-Pyzalla, A. R., et al. (2013). Induction-assisted laser beam welding of a thermomechanically rolled HSLA S500MC steel: A microstructure and residual stress assessment. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing, 578, 125-133. doi:10.1016/j.msea.2013.04.039.


Cite as: http://hdl.handle.net/21.11116/0000-0001-E2DC-8
Abstract
The present work deals with the effect of different combinations of induction heating and autogenous CO2 laser welding on the gradients of microstructure, microhardness and residual stresses in butt-joints of thermomechanically processed S500MC steel grade. Five strategies were pursued by varying the inductor position with respect to the laser beam. This enabled in-line pre-, post-, and simultaneous pre- and post-heating as well as annealing of the fusion and heat-affected zones. The induction-assisted CO2 laser welding strategies were compared to individual CO2 and Nd:YAG fiber welding procedures. The results demonstrate that induction heating can be combined to laser welding in order to effectively increase the cooling times. Martensite formation could be suppressed within the fusion and heat-affected zones and smooth hardness distributions were obtained by pre-heating and combined pre- and post-heating. The tensile residual stresses are, however, still of significance because of the high transformation temperatures (gt;500°C) observed for the S500MC steel. This allowed for extensive thermal contraction after exhaustion of the austenite to ferrite transformation. © 2013 Elsevier B.V.