2010
DOI: 10.3365/kjmm.2010.48.11.1021
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Impact Toughness and Microstructure of the Weld Metal by Tandem Electro-Gas Welded EH40 Steel

Abstract: The charpy impact property was lower at the surface and middle regions than that at the root region in metal welded by Tandem EGW of 82 mm thick EH40-TM steel plates. Temperature distribution in the weld sample and the heating/cooling temperature throughout the various regions in the weld metal were estimated by the commercial weld simulation program SYSWELD. The microstructure of the weld metal consisted of acicular ferrite and grain boundary ferrite. Grain boundary ferrite in the acicular ferrite matrix was … Show more

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