About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Ultrafine-Grained and Heterostructured Materials (UFGH) XIV
|
| Presentation Title |
Elasto-Plastic Transition in Micro-Architected Materials |
| Author(s) |
Dmytro Orlov, Yan Beygelzimer |
| On-Site Speaker (Planned) |
Dmytro Orlov |
| Abstract Scope |
Hetero-structured, or micro-architected, materials are well established concept for structural material design. With appropriate micro-architecture of heterogeneities, such materials can combine the best of two worlds, i.e. the ductility of coarse-grain and the strength of ultrafine-grain structures. Although these material properties are important for component fabrication, their elastic properties are even more important at later stages of such component in service. Materials with homogeneous chemical composition and heterogeneities in structure induced by plastic deformation can outperform both homogeneous and composite counterparts, especially at cyclic loads. Since elastic properties are not dependant on grain size, single-phase heterostructures generate lower internal stresses. At the same time, a caution should be taken to avoid premature localisation of strain and plastic instability. Based on experimental in situ studies of elasto-plastic transition in harmonic-structured nickel using synchrotron radiation, critical factors, advantages and possible weaknesses of heterostructures are discussed in this talk. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Shaping and Forming, Biomaterials |