Effects of process parameters on bead shape, microstructure, and mechanical properties in wire + arc additive manufacturing of Al0.1CoCrFeNi high-entropy alloy

The goal of this study is to investigate the wire + arc additive manufacturing (WAAM) of a high-entropy alloy (HEA) and to identify the near-optimal process parameters. To achieve the goal, a two-stage investigation is attempted using pre-alloyed and extruded Al0.1CoCrFeNi wire. In the first stage, single-layer beads are deposited with a range of process parameters (current, wire feed speed, and travel speed). Through process-signal monitoring,...