About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
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Symposium
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Advanced Characterization Techniques for Quantifying and Modeling Deformation
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Presentation Title |
The Impact of Ultrafine Grain Size on ZnAlAg Alloy on Hall-Petch Effect Under Severe Compression Process |
Author(s) |
Juan Manuel Prado-Lázaro, Israel Aguilera-Navarrete, Jorge Alejandro Verduzco-Martínez |
On-Site Speaker (Planned) |
Juan Manuel Prado-Lázaro |
Abstract Scope |
Our study presents a comparative analysis of compression of three specimen groups, each in distinct microstructural conditions of the ZnAlAg alloy. These groups are subjected to staggered loads to homogenize and refine the grain size. The X-ray diffraction technique identifies the crystalline phases α, η, and the intermetallic ε, and shows their position and evolution according to the applied load. The microhardness test, conducted in the plastic and packing zone under the ASTM E384 standard, further supports our findings. We have established a statistical relationship between the evolution in the diffraction peaks, microhardness, and applied load. Our research suggests practical implications for the heat treatment and deformation process of the Zn-22Al-4Ag alloy, allowing for more plasticity due to grain refinement, improved distribution of the intermetallic ε, and the absence of work hardening, leading to a softening or a negative slope of the Hall-Petch model. |
Proceedings Inclusion? |
Planned: |
Keywords |
Aluminum, Characterization, Mechanical Properties |