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This research aims to explore the relationship between microstructural characteristics and mechanical behavior in GMAW of AISI 1010 steel.

July 22, 2026Next MaterialsOpen Access

Characterization of weld zone heterogeneity and fracture behavior in GMAW AISI 1010 steel

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Randomized trial investigates mechanical properties and microstructure in GMAW AISI 1010 steel, highlighting critical factors for weld integrity.

This research aims to explore the relationship between microstructural characteristics and mechanical behavior in GMAW of AISI 1010 steel.
Utilized optical microscopy and image analysis for quantifying grain size in weld zones.
Conducted mechanical testing including tensile, bend, and Charpy impact tests to relate microstructure and performance.
Employed scanning electron microscopy (SEM) for fractographic analysis of failure mechanisms.
Weld zone exhibited finest average grain size (0.58 µm²) and highest hardness (65.7 HRB) compared to base metal and heat-affected zone.
Fracture was found to initiate at the weld centerline, marking it as the weakest region during tensile and bend tests.
Charpy impact tests showed a 48% reduction in energy under cryogenic conditions, indicating a shift to brittle behavior.

M L Rahman (2026) studied this question.

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Randomized trial investigates mechanical properties and microstructure in GMAW AISI 1010 steel, highlighting critical factors for weld integrity.