Meso-scale evaluation
Research materials: Additive manufactured Inconel 718 and 316L SS, etc.
It has been observed that the mechanical properties of materials at small-scales are very different from those of their bulk counterparts. While the microstructural effects of each individual grains are often averaged in the bulk samples, such effects are greatly amplified as the characteristic dimension of the materials becomes comparable with its grain size. However, characterization of materials at small-scale is challenging due to the inherent difficulties associated with handling and gripping of the samples, reproducibility of samples and results, and to accurately evaluate its responses.
Therefore, meso-scale samples are of good efficiency in obtaining properties of the bulk samples, while providing us the choice to further fabricate micro/ nano-scale samples at the site of interests to investigate the microstructural effects. Our research work is focused on conducting mechanical evaluations with meso-scale samples of materials, utilizing our custom-built meso-scale tensile tester equipped with a furnace for room and elevated temperature tests.
It has been observed that the mechanical properties of materials at small-scales are very different from those of their bulk counterparts. While the microstructural effects of each individual grains are often averaged in the bulk samples, such effects are greatly amplified as the characteristic dimension of the materials becomes comparable with its grain size. However, characterization of materials at small-scale is challenging due to the inherent difficulties associated with handling and gripping of the samples, reproducibility of samples and results, and to accurately evaluate its responses.
Therefore, meso-scale samples are of good efficiency in obtaining properties of the bulk samples, while providing us the choice to further fabricate micro/ nano-scale samples at the site of interests to investigate the microstructural effects. Our research work is focused on conducting mechanical evaluations with meso-scale samples of materials, utilizing our custom-built meso-scale tensile tester equipped with a furnace for room and elevated temperature tests.
Read more in our publications:
[1] Tekoglu, E., Bae, J. S., Kim, H. A., Lim, K. H., Liu, J., Doležal, T. D., ... & Li, J. (2024). Superior high-temperature mechanical properties and microstructural features of LPBF-printed In625-based metal matrix composites. Materials Today, 80, 297-307.
[2] Tekoğlu, E., O'Brien, A. D., Bae, J. S., Lim, K. H., Liu, J., Kavak, S., ... & Li, J. (2023). Metal matrix composite with superior ductility at 800° C: 3D printed In718+ ZrB2 by laser powder bed fusion. Composites Part B: Engineering, 111052.
[1] Tekoglu, E., Bae, J. S., Kim, H. A., Lim, K. H., Liu, J., Doležal, T. D., ... & Li, J. (2024). Superior high-temperature mechanical properties and microstructural features of LPBF-printed In625-based metal matrix composites. Materials Today, 80, 297-307.
[2] Tekoğlu, E., O'Brien, A. D., Bae, J. S., Lim, K. H., Liu, J., Kavak, S., ... & Li, J. (2023). Metal matrix composite with superior ductility at 800° C: 3D printed In718+ ZrB2 by laser powder bed fusion. Composites Part B: Engineering, 111052.
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Updated on 2025.04.05
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