Abstract
The aim of present study is to investigate the avalanche behavior of minute deformation around yield point of polycrystalline pure Ti. Firstly, we prepare commercial polycrystalline pure Ti (99.5%) thin plate, and investigate the pole figures and inverse pole figure distribution for rolling direction on the surface of specimen, which is obtained from Electron Backscatter Diffraction Patterns (EBSD). Secondarily, tensile specimens are cut out from 0° 30° 45° and 90° relative to rolling direction of thin plate. Then, we attempt to measure macroscopic stress-strain curve, local strain distribution and minute deformation arising in specimens under tensile loading. In this time, the in-house measurement system integrated with tensile machine control system, local strain distribution measurement system and minute deformation measurement system is constructed suited on a LabVIEW platform. Local strain distribution is measured by in-house system on the basis of Digital Image Correlation (DIC). Also, minute deformation behavior is measured by in-house other one on the basis of acoustic emission (AE). Finally, we discuss about the mechanism of avalanche behavior of minute deformation around yield point of polycrystalline pure Ti on the basis of results in present study.
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Murasawa, G., Morimoto, T., Yoneyama, S., Nishioka, A., Miyata, K., Koda, T. (2011). Avalanche Behavior of Minute Deformation Around Yield Point of Polycrystalline Pure Ti. In: Proulx, T. (eds) Experimental and Applied Mechanics, Volume 6. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-9792-0_5
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DOI: https://doi.org/10.1007/978-1-4419-9792-0_5
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