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Analysis of the Content of δ Ferrite in Pulse-Arc Welded Steel 304

Gucwa M., Bęczkowski R., Grzyb A.

Archives of Foundry Engineering

2014

Vol. 14, iss. 1 spec.

131--134

The paper presents the results of research on the effect of the welding arc type on the content of δ ferrite, in the welded joint of 304 grade stainless steel. Based on the commonly used Schaefler diagram, the content of δ ferrite in the welded joint was estimated, and then these results were verified by comparing them with results obtained on specimens welded by different welding arc types, including the pulse arc. The obtained investigation results indicate some discrepancies between calculations made by analytical methods and the fraction of δ ferrite measured on the prepared specimens.