Stress measurement in the iron oxide scale formed on pure Fe during isothermal transformation by in situ high-temperature X-ray diffraction

Hayashi, Shigenari; Yamanouchi, Yurika; Hayashi, Kosuke; Hidaka, Yasuyoshi; Sato, Masugu

doi:10.1016/j.corsci.2021.109482


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Stress measurement in the iron oxide scale formed on pure Fe during isothermal transformation by in situ high-temperature X-ray diffraction

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Title:	Stress measurement in the iron oxide scale formed on pure Fe during isothermal transformation by in situ high-temperature X-ray diffraction
Authors:	Hayashi, Shigenari Browse this author →KAKEN DB
	Yamanouchi, Yurika Browse this author
	Hayashi, Kosuke Browse this author
	Hidaka, Yasuyoshi Browse this author
	Sato, Masugu Browse this author
Keywords:	Iron oxide scale
	Sin(2)psi method
	In situ high-temperature stress measurement
Issue Date:	15-Jul-2021
Publisher:	Elsevier
Journal Title:	Corrosion Science
Volume:	187
Start Page:	109482
Publisher DOI:	10.1016/j.corsci.2021.109482
Abstract:	The stress development in the iron oxide scale formed on pure Fe during isothermal oxidation at 700 degrees C followed by isothermal transformation at 500 or 380 degrees C was measured by in situ high-temperature X-ray diffraction with the sin(2)psi method. The eutectoid transformation resulted in compressive stress generation in the Fe3O4 and Fe in the eutectoid structure. This compressive stress was relaxed during the isothermal heat treatment after the eutectoid reaction. The stress generation was ascribed primarily to volume changes associated with the oxidation and/or reduction of the iron oxide at the interfaces, Fe3O4 precipitation, and the eutectoid reaction.
Rights:	©2021. This manuscript version is made available under the CC BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Rights:	http://creativecommons.org/licenses/by-nc-nd/4.0/
Type:	article (author version)
URI:	http://hdl.handle.net/2115/88987
Appears in Collections:	工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 林重成

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