Enhanced corrosion performance in Ti-6Al-4V alloy produced via wire-arc directed energy deposition with magnetic arc oscillation

Grain refinement and columnar-to-equiaxed transition of Ti6Al4V during additive manufacturing via different laser oscillations

“…The morphology of the lamellae α is mainly affected by the cooling rate and the direction of heat flow. Due to the flatter temperature gradient caused by the laser oscillation, the transition from the β to α is more sufficient, and the α phase shows extensive globularization [36,37]. In general, laser oscillation can exhibit periodic changes, and the geometric fluid behaviour of the molten pool also changes periodically.…”