About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Ceramic Materials and Processing
|
Presentation Title |
Experimental and Numerical Modeling study of Brittle to Ductile
Transition in 𝑇𝑖3𝑆𝑖𝐶2 MAX Phase material |
Author(s) |
Pawan S. Chaugule, Sagar Bhatt, Beihai Ma, Bipul Barua, Mark C Messner, Dileep Singh |
On-Site Speaker (Planned) |
Pawan S. Chaugule |
Abstract Scope |
MAX phase materials, such as 𝑇𝑖3𝑆𝑖𝐶2, are a family of ternary carbides
and nitrides that exhibit some of the desirable properties of both metals
and ceramics. At room temperature, when mechanically deformed, it
exhibits elastic deformation followed by a brittle failure. At high
temperatures (>1000 ℃), however, it exhibits ductility comparable to that
of metals. This study aims to explain this brittle to ductile (BTD)
transition using tensile and flexure tests coupled with physics-based
Crystal Plasticity (CP) modeling. SEM characterization is conducted on
samples tested under the two modes of loading at various temperatures
ranging from room temperature to 1200℃ to interpret the modes of
deformation. Utilizing the SEM observations, the CP is tuned and used to
simulate the observed deformation behavior and identify the mechanisms
responsible for the BTD transition. |
Proceedings Inclusion? |
Planned: |
Keywords |
Ceramics, Mechanical Properties, Computational Materials Science & Engineering |