Abstract
This paper is to study weldability and joining characteristics of dissimilar metal welding between low carbon steel and ferritic stainless steel using ER308L and ER309L filler wires. Weldability and welded joints were evaluated by microstructure analysis and bend test. It was observed that the microstructure of the fusion zone and the bend test of the welded joint were significantly affected by welding parameters and filler wire. A welded joint prepared with high heat input using the ER309L filler wire exhibited a significant delta ferrite and austenite microstructure. In contrast, when employing the ER308L filler wire with a high intensity welding current, martensite, and carbide formed at the fusion zone. The bend property was acceptable for all the specimens, and there was no evidence of solidification cracking.
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