| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Heterostructured and Gradient Materials (HGM VI): Principle, Processing and Properties
|
| Presentation Title |
Mechanism for Both High Strength and High Ductility in Hetero-Structured Materials: Insight From Atomic Simulations |
| Author(s) |
Tomotsugu Shimokawa |
| On-Site Speaker (Planned) |
Tomotsugu Shimokawa |
| Abstract Scope |
Heterostructured materials, which contain a mixture of phases with different mechanical properties, exhibit superior mechanical properties compared to individual phases. Generally, the hard phase possesses high strength but experiences early plastic instability, resulting in poor ductility. Therefore, if the work hardening rate of the soft phase can be increased by adjoining the hard phase, the local deformation caused by the plastic instability of the hard phase can be suppressed. In other words, understanding the synergistic effect between the hard and soft phases is crucial. In this talk, I will present the development of lattice defects near the interface between the hard and soft phases observed in atomic simulations of lamellar pearlitic steel and a core-shell structured harmonic material. I will also discuss the potential mechanisms for achieving both high strength and high ductility in heterostructured materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Modeling and Simulation, Computational Materials Science & Engineering |