Table of Contents
Metals, Volume 8, Issue 10 (October 2018)
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Cover Story (view full-size image) Laser welding of dissimilar high-strength steels is typically investigated by assessing their [...] Read more. Laser welding of dissimilar high-strength steels is typically investigated by assessing their weldability based on alloy chemistry. This study reveals the influence of joint geometry on weld quality. Weld defects are heavily dependent on the component geometry. The resulting weld microstructures are also predicted by using neural network-simulated Continuous Cooling Transformation diagrams, which show the formation of a mixture of microstructures, such as bainite, martensite and pearlite in the weld. The thermal fields are measured using thermocouples and reveal the strong influence of component geometry on the cooling rate, which in term defines the weld microstructure and the occurring hardness. View the paper here.