Crack resistance of ultra-high strength low alloyed steel welded joints
Abstract
Ultra High Strength Low Alloyed (UHSLA) steel, with Yield Strength more than 1000 MPa, was welded by Gas Shielded Arc Welding (GSAW) process using wire electrode (Yield Strength 960 MPa). The standard testing of fracture toughness, KIc, and impact toughness on instrumented Charpy pendulum with separated crack initiation and propagation energies was performed for all welded joint zones (base metal, heat-affected zone and weld metal). Results indicated that the crack resistance is relatively high in all zones with weld metal as the weakest link.
Keywords
crack resistance, welded joints, ultra-high strength steel, fracture toughness
References
Under construction
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aasedmak@mas.bg.ac.rs