TY - JOUR
T1 - Phase transformations and microstructure evolutions during depressurization of hydrogenated Fe–Mn–Si–Cr alloy
AU - Varanasi, Rama Srinivas
AU - Koyama, Motomichi
AU - Saitoh, Hiroyuki
AU - Utsumi, Reina
AU - Sato, Toyoto
AU - Orimo, Shin ichi
AU - Akiyama, Eiji
N1 - Funding Information:
This work was financially supported by JSPS KAKENHI Grants-in-Aid for Scientific Research JP20H02457, and JP18H05513 and JP18H05514 on Innovative Areas “Hydrogenomics”. Synchrotron X-ray radiation experiments at SPring-8 were supported by the QST Advanced Characterization Nanotechnology Platform under the remit of “Nanotechnology Platform” of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan (Proposal Nos. JPMXP09A20QS0013 and JPMXP09A21QS0013). The synchrotron radiation experiments were performed using a QST experimental station at QST beamline BL14B1, SPring-8, with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (Proposal Nos. 2020A3691 and 2021A3691).
Funding Information:
This work was financially supported by JSPS KAKENHI Grants-in-Aid for Scientific Research JP20H02457, and JP18H05513 and JP18H05514 on Innovative Areas “Hydrogenomics”. Synchrotron X-ray radiation experiments at SPring-8 were supported by the QST Advanced Characterization Nanotechnology Platform under the remit of “Nanotechnology Platform” of the Ministry of Education, Culture, Sports, Science and Technology ( MEXT ), Japan (Proposal Nos. JPMXP09A20QS0013 and JPMXP09A21QS0013). The synchrotron radiation experiments were performed using a QST experimental station at QST beamline BL14B1, SPring-8, with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (Proposal Nos. 2020A3691 and 2021A3691).
Publisher Copyright:
© 2022 Hydrogen Energy Publications LLC
PY - 2023
Y1 - 2023
N2 - Hydride formation and associated phase transformations have been extensively studied in pure Fe. However, the understanding of hydrogenation in Fe-based alloy systems is still lacking. Such an investigation is particularly important in the case of austenitic (face-centered cubic) steels given that hydrogen has been reported to alter the austenite phase stability. In the current work, we investigate the phase transformations associated with depressurization of non-hydrogenated and hydrogenated Fe–Mn–Si–Cr alloy (FMS) (Fe-28.84Mn-7.04Cr-6.14Si, in mass %) using in-situ x-ray diffraction technique. Additionally, we study the change in microstructure using electron backscatter diffraction (EBSD) and electron channeling contrast imagining (ECCI).
AB - Hydride formation and associated phase transformations have been extensively studied in pure Fe. However, the understanding of hydrogenation in Fe-based alloy systems is still lacking. Such an investigation is particularly important in the case of austenitic (face-centered cubic) steels given that hydrogen has been reported to alter the austenite phase stability. In the current work, we investigate the phase transformations associated with depressurization of non-hydrogenated and hydrogenated Fe–Mn–Si–Cr alloy (FMS) (Fe-28.84Mn-7.04Cr-6.14Si, in mass %) using in-situ x-ray diffraction technique. Additionally, we study the change in microstructure using electron backscatter diffraction (EBSD) and electron channeling contrast imagining (ECCI).
KW - Epsilon martensite
KW - High pressure
KW - Hydride
KW - Phase transformation
KW - Synchrotron radiation X-ray diffraction
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U2 - 10.1016/j.ijhydene.2022.11.274
DO - 10.1016/j.ijhydene.2022.11.274
M3 - Article
AN - SCOPUS:85146936033
SN - 0360-3199
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
ER -
