Microstructure-induced fatigue scatter of additively manufactured inconel 718: Insight from multilevel simulations and dislocation-based strain gradient crystal plasticity

Key Points

• Fatigue scatter is influenced by microstructure in additively manufactured Inconel 718, highlighting material performance variability.
• The study indicates that variations in microstructure can lead to significant fatigue differences, affecting lifespan and reliability.
• Analysis through dislocation-based strain gradient crystal plasticity provides insights into material behavior under stress.
• Understanding these influences may enhance manufacturing processes, enabling improved design and durability of additive materials.