About this Abstract |
Meeting |
2020 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 |
Grain - Scale Mechanical Characterization of Alpha-Titanium Using Spherical Indentation Stress-Strain Protocols |
Author(s) |
Natalia Millan-Espitia, Soumya Mohan, Adam Pilchak, Surya R. Kalidindi |
On-Site Speaker (Planned) |
Natalia Millan-Espitia |
Abstract Scope |
Recently established spherical indentation stress-strain protocols have established the feasibility of measuring reliably the mechanical responses at different material lengths scales in a broad range of structural alloys. In the present study, we apply these high-throughput protocols on the primary alpha-phase constituents in polycrystalline samples of Ti5-2.5, Ti811, Ti64, Ti6242 and Ti624 to aggregate a large experimental dataset that documents systematically the effects of alpha-phase chemical composition and grain orientation on the measured values of indentation modulus and the indentation yield strength. This dataset is being offered to the materials community to allow further analyses of the effect of chemical composition of the alpha-phase on its intrinsic elastic-plastic properties (e.g., single crystal elastic constants, critical resolved shear strengths). This study clearly establishes the feasibility and tremendous value of spherical indentation stress-strain protocols for documenting the grain-scale anisotropic mechanical responses of different alpha-phase compositions in high-throughput assays. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |