Critical porosity in the fatigue of additively manufactured IN718 via crystal plasticity modeling
https://doi.org/10.1016/j.matdes.2018.04.022
Highlights
1. Critical porosity is estimated in additively manufactured IN718 via crystal plasticity.
2. Porosity is characterized using high resolution tomography.
3. Non-local damage indicator parameters identify the location of fatigue crack initiation.
4. The critical pore size is 20 μm in IN718 with average grain size of 48 μm.