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Erschienen in: Journal of Materials Engineering and Performance 4/2015

01.04.2015

Probing Pulsed Current Gas Metal Arc Welding for Modified 9Cr-1Mo Steel

verfasst von: S. Krishnan, D. V. Kulkarni, A. De

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 4/2015

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Abstract

Modified 9Cr-1Mo steels are commonly welded using gas tungsten arc welding process for its superior control over the rate of heat input and vaporization loss of the key alloying elements although the rate electrode deposition remains restricted. Recent developments in pulsed current gas metal arc welding have significantly improved its ability to enhance the rate of electrode deposition with a controlled heat input rate while its application for welding of modified 9Cr-1Mo steels is scarce. The present work reports a detailed experimental study on the pulsed current gas metal arc welding of modified 9Cr-1Mo steels. The effect of the shielding gas, welding current, and speed on the weld bead profile, microstructure and mechanical properties are examined. The results show that the pulsed current gas metal arc welding with appropriate welding conditions can provide acceptable bead profile and mechanical properties in welds of modified 9Cr-1Mo steels.

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Metadaten
Titel
Probing Pulsed Current Gas Metal Arc Welding for Modified 9Cr-1Mo Steel
verfasst von
S. Krishnan
D. V. Kulkarni
A. De
Publikationsdatum
01.04.2015
Verlag
Springer US
Erschienen in
Journal of Materials Engineering and Performance / Ausgabe 4/2015
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-015-1430-4

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