TY - GEN
T1 - Three-dimensional plastic strain mapping technique for X-ray micro-tomography
AU - Kobayashi, M.
AU - Toda, H.
AU - Kawai, Y.
AU - Nakazawa, M.
AU - Aoki, Y.
AU - Uesugi, K.
AU - Suzuki, Y.
PY - 2010/12/1
Y1 - 2010/12/1
N2 - Recently, X-ray micro-tomography has been utilized for characterization of deformation and fracture behaviors in materials. The micro-tomography that is available in the synchrotron facility can reveal the existence of particles and crack in about 1 μm resolution. In this study, three-dimensional mapping technique has been developed to observe inhomogeneous plastic deformation affected by metallurgical microstructures in small specimen. Marker-tracking method with predicting marker position was produced to obtain strain in inhomogeneously and highly deformed region. The model that simulates tensile test was produced with taking actual deformation pattern into consideration. Evaluation of ratios of success tracking and tracked marker showed good performance of the developed method. The prediction of marker position after deformation was very effective in tensile deformation with necking. Almost 100% ratios of success tracking and tracked marker were indicated not only in homogeneous deformation up to 10% strain but also in inhomogeneous deformation up to 5% strain.
AB - Recently, X-ray micro-tomography has been utilized for characterization of deformation and fracture behaviors in materials. The micro-tomography that is available in the synchrotron facility can reveal the existence of particles and crack in about 1 μm resolution. In this study, three-dimensional mapping technique has been developed to observe inhomogeneous plastic deformation affected by metallurgical microstructures in small specimen. Marker-tracking method with predicting marker position was produced to obtain strain in inhomogeneously and highly deformed region. The model that simulates tensile test was produced with taking actual deformation pattern into consideration. Evaluation of ratios of success tracking and tracked marker showed good performance of the developed method. The prediction of marker position after deformation was very effective in tensile deformation with necking. Almost 100% ratios of success tracking and tracked marker were indicated not only in homogeneous deformation up to 10% strain but also in inhomogeneous deformation up to 5% strain.
KW - Image analysis
KW - Inhomogeneous deformation
KW - Micro-tomography
KW - Synchrotron radiation
KW - Three-dimensional
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UR - http://www.scopus.com/inward/citedby.url?scp=79952653343&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:79952653343
SN - 9781617820328
T3 - Materials Science and Technology Conference and Exhibition 2010, MS and T'10
SP - 1037
EP - 1044
BT - Materials Science and Technology Conference and Exhibition 2010, MS and T'10
T2 - Materials Science and Technology Conference and Exhibition 2010, MS and T'10
Y2 - 17 October 2010 through 21 October 2010
ER -