Hot Cracking Susceptibility Prediction from Quantitative Multi-Phase Field Simulations with Grain Boundary Effects

Hot cracks are notorious defects in casting, welding, and additive manufacturing. Grain boundaries play a key role in cracking formation. Still, their effects are often neglected in hot cracking susceptibility predictions, and thus a quantitative picture of hot cracking susceptibility and liquid fracture is still lacking. In this work, we construct a multiorder parameter phase-field model for binary alloys solidification to simulate attractive, …