Review, Structure–Property Relationships and Multi-Objective Design in Advanced Metallic Systems: From Nanocrystals and High-Entropy Alloys to Bulk Metallic Glasses: Structure–Property Relationships and Multi-Objective Design in Advanced Metallic Systems: From Nanocrystals and High-Entropy Alloys to Bulk Metallic Glasses. JNA 2026, 2 (3), 16-37. https://doi.org/10.65273/hhit.jna.2026.2.3.045.