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Microstructures of austenitic stainless steel weldments - a study on the effects of weld current pulsing
Bimalendu Guha, D. R.Gopalakrishna Achar
Published in Carl Hanser Verlag, Munich, Germany
2001
Volume: 38
   
Issue: 1
Pages: 31 - 37
Abstract
Ferrite morphology in austenitic stainless steel weldment fusion zone is important from the point of view of its decomposition to undesirable sigma phase and for inter granular corrosion resistance. Microstructural aspects of ferrite as affected by various frequencies of current pulsing in gas tungsten arc welding are studied along with heat affected zone structures and compared with the weldment made by continuos current. Medium pulsing frequencies were found to give desired structures in fusion zone as well as heat affected zone.
About the journal
JournalPraktische Metallographie/Practical Metallography
PublisherCarl Hanser Verlag, Munich, Germany
ISSN0032678X
Open AccessNo
Concepts (13)
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    Austenite
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    Ferrite
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    Gas metal arc welding
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    Heat affected zone
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    Morphology
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    Stainless steel
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    Welds
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    AUSTENITIC STAINLESS STEEL WELDMENT
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    FERRITE MORPHOLOGY
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    FUSION ZONE
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    Gas tungsten arc welding
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    WELD CURRENT PULSING
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    Metallographic microstructure