Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Kentarou Uesugi"'
Autor:
Tomoya Nagira, Kouhei Morishita, Ryo Unoki, Masato Yoshiya, Kentarou Uesugi, Akira Sugiyama, Hideyuki Yasuda
Publikováno v:
Tetsu-to-Hagane. 103:668-677
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c826ab39e4c382f41a93a281d10f593f
https://doi.org/10.2355/tetsutohagane.tetsu-2017-064
https://doi.org/10.2355/tetsutohagane.tetsu-2017-064
Autor:
Tomoya Nagira, Kentarou Uesugi, A. Takeuchi, Masayoshi Kamai, D. Yamashita, Hidetoshi Fujii, Huihong Liu, Yasuhiro Aoki
Publikováno v:
Materials Characterization. 167:110469
Synchrotron X-ray imaging was used to study the microstructural evolution of solidification cracking for an Al-Cu alloy at the weld crater without applying an external force. The distributions of strain, strain rate, Cu concentration in the liquid an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7aaf119b129aefe785505f1675bf393
https://doi.org/10.1016/j.matchar.2020.110469
https://doi.org/10.1016/j.matchar.2020.110469
Autor:
K. Yamane, Tomoya Nagira, Kentarou Uesugi, Kohei Morishita, Hideyuki Yasuda, Yasuhiro Suzuki, Akihisa Takeuchi, Akira Sugiyama, Masato Yoshiya
Publikováno v:
Metallurgical and Materials Transactions A. 46:4937-4946
Radiography using a synchrotron radiation X-ray source was performed to examine solidification and melting behaviors in hypereutectic cast iron specimens containing 0.002 and 0.05mass pctMg. The solidification sequence in the alloy containing 0.002ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::565d8069bf3c6b0bef59a76c922a83cf
https://doi.org/10.1007/s11661-015-3077-z
https://doi.org/10.1007/s11661-015-3077-z
Autor:
Yoshio Suzuki, Masayuki Uesugi, Kentarou Uesugi, Akihisa Takeuchi, Akira Tsuchiyama, M. Hoshino
Publikováno v:
Geochimica et Cosmochimica Acta. 116:17-32
Carbonaceous chondrites were observed by synchrotron radiation X-ray computed tomography (SR-CT) three-dimensionally. We analyzed the chemical composition of the components of the carbonaceous chondrites, such as chondrules, matrix and iron inclusion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab0d872a217392cd6859e9215dee7ff6
https://doi.org/10.1016/j.gca.2012.09.025
https://doi.org/10.1016/j.gca.2012.09.025
Autor:
Hideyuki Yasuda, Christopher M. Gourlay, Akira Sugiyama, Tomoya Nagira, Shugo Morita, Kentarou Uesugi, Hiroyoshi Yokota, Masato Yoshiya, Keiji Umetani
Publikováno v:
ISIJ International. 53:1195-1201
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8bc75ab6c57ed62fd620b346b485347
https://doi.org/10.2355/isijinternational.53.1195
https://doi.org/10.2355/isijinternational.53.1195
Autor:
Keiji Umetani, Tomoya Nagira, Christopher M. Gourlay, Masato Yoshiya, Hideyuki Yasuda, Kentarou Uesugi, Akira Sugiyama
Publikováno v:
Materia Japan. 51:561-568
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b07973f46218dd5f46f7f9f6f9bf222d
https://doi.org/10.2320/materia.51.561
https://doi.org/10.2320/materia.51.561
Autor:
Arne K. Dahle, Tomoya Nagira, Christopher M. Gourlay, Kazuhiro Nogita, Noriaki Nakatsuka, Kentarou Uesugi, Hideyuki Yasuda
Publikováno v:
Acta Materialia. 59:4933-4943
Deformation mechanisms in equiaxed, partially solid Al–15 wt.% Cu are studied in situ by coupling shear-cell experiments with synchrotron X-ray radiography. Direct evidence is presented for granular deformation mechanisms in both globular and equia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::685abd3d1f75667d1d018af05c8b0fa2
https://doi.org/10.1016/j.actamat.2011.04.038
https://doi.org/10.1016/j.actamat.2011.04.038
Autor:
Christopher M. Gourlay, Tomoya Nagira, Arne K. Dahle, Hideyuki Yasuda, Masato Yoshiya, Kentarou Uesugi, Y. Yamamoto, Kazuhiro Nogita
Publikováno v:
Acta Materialia. 59:4043-4054
The dynamics of off-eutectic solidification are studied in two Pb-free solders using synchrotron X-ray radiography and post mortem scanning electron microscopy. The early stages of growth revealed the onset of coupled growth and phase competition. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c9f39dd97b162b8f446ed57d8f7a751
https://doi.org/10.1016/j.actamat.2011.03.028
https://doi.org/10.1016/j.actamat.2011.03.028
Autor:
Christopher M. Gourlay, Kentarou Uesugi, K. Umetani, Masato Yoshiya, Masayuki Uesugi, Tomoya Nagira, Hideyuki Yasuda, Akira Sugiyama, Y. Kanzawa
Publikováno v:
Scripta Materialia. 64:1129-1132
The dynamics of globule motion are studied in situ during the deformation of globular semi-solid steel (Fe–2C–0.9Mn–0.5Si in mass%). Samples with globular morphology and 55–65% effective solid fraction were deformed in direct shear at a shear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f4a34a84208c33120165a2dc6beab46
https://doi.org/10.1016/j.scriptamat.2011.03.009
https://doi.org/10.1016/j.scriptamat.2011.03.009
Autor:
Keiji Umetani, Akira Sugiyama, Itsuo Ohnaka, Noriaki Nakatsuka, Y. Yamamoto, Masato Yoshiya, Kentarou Uesugi, Hideyuki Yasuda, Tomoya Nagira
Publikováno v:
International Journal of Cast Metals Research. 22:15-21
Synchrotron radiation enables the observation of solidification in metallic alloys. In situ observations of solidification for Al–Cu alloys (5, 10 and 15 wt-%Cu) are reported. Nucleation and fragmentation of dendrite arms were often observed in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76eed768c79d06423c6befa2f4f05fa6
https://doi.org/10.1179/136404609x368118
https://doi.org/10.1179/136404609x368118