About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Characterization Techniques for Quantifying and Modeling Deformation
|
Presentation Title |
Exploring Deformation Behavior and Phase Transformations of Tin |
Author(s) |
Reeju Pokharel |
On-Site Speaker (Planned) |
Reeju Pokharel |
Abstract Scope |
Tin displays many allotropic phases across a range of temperatures and pressures. Characterized by its relatively low melting temperature of 505 K, it exhibits intricate deformation patterns at room temperature (RT), equivalent to a high homologous temperature (~0.6 Tm). Beta-tin (β-Sn) at RT assumes a body-centered-tetragonal structure, leading to a more complex deformation behavior compared to higher symmetry structures. This complexity stems from the numerous possible slip and twinning modes that can be activated. Under high-pressure, β-Sn undergoes a phase transformation into the gamma phase, maintaining the tetragonal structure, which further transforms into a bcc phase. This presentation will share insights from several scattering investigations (utilizing electrons, X-rays, and neutrons) aimed at understanding the behaviors of tin and its phases under different loading conditions. A comprehensive understanding of the deformation behavior across varying scales and load conditions is crucial for supporting the development of physically-based constitutive strength and damage models. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Phase Transformations, Mechanical Properties |