AI-Designed Steel for 3D Printing Surges in Strength and Rust Resistance

Researchers used an interpretable machine-learning model to design a new Fe-based alloy tailored for laser powder bed fusion 3D printing, achieving about 1,713 MPa strength and over 15% ductility after a six-hour heat treatment, plus superior corrosion resistance (0.105 mm/year). The PF-ML design approach could accelerate additive manufacturing, though it must be retrained for different material classes.