About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Multi-Principal Element Alloys III: Mechanical Behavior
|
Presentation Title |
Understanding the Deformation Mechanism of an FCC Multi-principal Element Alloy via Nanoindentation |
Author(s) |
Kelvin Yu Xuan Xie |
On-Site Speaker (Planned) |
Kelvin Yu Xuan Xie |
Abstract Scope |
In this study, we investigated the deformation mechanism of a NiFeCoCr multi-principal element alloy (MPEA) via nanoindentation. The nanoindentation experiments were performed along the [001] and [011] crystallographic directions. Since MPEAs exhibit lower stacking fault energy compared to pure FCC metals, it makes the MPEAs suitable for investigating the behavior and interplay of dislocations, stacking faults, and nano-twins. Transmission electron microscopy (TEM) and precession electron diffraction (PED) were employed to analyze the deformed microstructure and discern the underlying deformation mechanisms. A comparison was made between the deformed microstructure and deformation mechanism of the MPEA and Ni single crystals under the same conditions. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, High-Entropy Alloys, Mechanical Properties |