CyberSteels: Accelerating Genomic Design
Abstract
Approved for Public ReleaseAn integrated theoretical and experimental collaboration of physical metallurgy, continuum mechanics and,quantum physics addresses the scientific infrastructure of simulation-based design and genomic-level fundamental database developmen,t supporting the computational design and qualification of advanced high- performance steels enabling next generation major naval st,ructural platforms. Simulation of 3D multiscale ductile fracture addresses mechanisms of transformation toughening in support of all,oy design optimization of transformation stability. Design integration methods based on fundamental databases combine optimized tran,sformation toughening and efficient precipitation strengthening in both fully austenitic nonmagnetic steels and higher-strength mart,ensite/austenite steels within constraints of large-scale solidification processability, weldability, and raw material/process cost., Novel methods of accelerated expansion of steel- specific fundamental databases explore both theoretical and experimental high-thro,ughput techniques. For control of intergranular hydrogen resistance, theoretical estimates of surface thermodynamic parameters combi,ne interatomic potential, pseudopotential DFT, and all-electron DFT methods, while efficient direct measurements employ a combined F,IB/SEM/STEM/LEAP approach to multicomponent interfacial segregation. Novel containerless melt experiments define fundamental thermop,hysical data to be integrated into constraint of macrosegregation phenomena in large-scale solidification processing.amental thermop,hysical data to be integrated into constraint of macrosegregation phenomena in large-scale solidification processing.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Dec 06, 2022
- Source ID
- N000142312004
Entities
People
- Gregory Olson
Organizations
- Massachusetts Institute of Technology
- Office of Naval Research
- United States Navy