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Finite element analysis in pulsed GTA weldments
D. R.Gopalakrishna Achar, Bimalendu Guha
Published in
2003
Volume: 426-432
   
Issue: 5
Pages: 3995 - 4000
Abstract
A three dimensional transient non linear finite element model for heat transfer and grain growth analysis of pulsed current gas tungsten arc weldments is described. Features such as temperature dependent material properties, heat loss due to convection and radiation, heat loss due vaporization of alloying elements, latent heat of melting and solidification are incorporated in the model. Results on the effect of pulsing parameters on the grain growth in the HAZ region of austenitic stainless steel (304) weldments are presented. Studies on grain growth indicated that there exists an optimum frequency value for least grain growth. This result is of industrial importance since least grain growth in HAZ is desired.
About the journal
JournalMaterials Science Forum
ISSN02555476
Open AccessNo
Concepts (6)
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    GAS TUNGSTEN ARC WELDMENTS
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    Finite element method
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    Grain growth
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    Heat affected zone
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    Heat transfer
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    Gas metal arc welding