Hydrogen effects on micromechanical behavior of additively manufactured medium-entropy alloys

The influences of hydrogen on the micromechanical behavior of additively manufactured medium-entropy alloys were systematically investigated through a series of micro-tensile and nanoindentation experiments. Hydrogen was electrochemically charged, and both global and local strains were examined using two different digital image correlation techniques. The results were compared with those from conventionally manufactured counterparts and discussed in terms of interaction between diffusional hydrogen and crystalline defects.