| Abstract Scope |
The next generation of high-performance components require multifunctional materials with spatially optimized properties. For example, future high frequency, large torque, extreme service environment rotating electrical conversion machines demand next-gen components. Additive manufacturing (AM) can produce such components, fabricated from multiple material compositions. A directed energy deposition technique, LENS, was deployed to produce compositionally graded Fe-Co-Ni based samples. The process parameters were optimized to produce structurally sound samples. The materials library intrinsic to such samples was utilized to rapidly develop composition-structure- multiple property relationships. Alloy compositions possessing attractive magnetic, mechanical, and electrical properties were pinpointed. Novel compositions, e.g., Co30Fe60Ni10, Co10Fe80Ni10, etc., with an optimum property set were identified. Such compositions were used to produce multi-material, spatially optimized, AM prototypes. This rapid development of AM multifunctional components will be elucidated. This work is supported by the AME Programmatic Fund by the Agency for Science, Technology and Research, Singapore under Grant No. A1898b0043. |