Combined microtomography, thermal desorption spectroscopy, X-ray diffraction study of hydrogen trapping behavior in 7XXX aluminum alloys - Collections | Kyushu University Library

＜journal article＞
Combined microtomography, thermal desorption spectroscopy, X-ray diffraction study of hydrogen trapping behavior in 7XXX aluminum alloys

Creator	Creator Name Bhuiyan, Md. Shahnewaz Affiliation Affiliation Name Department of Mechanical Engineering, Kyushu University
	Author PID K004938 Creator Name Toda, Hiroyuki 戸田, 裕之トダ, ヒロユキ Affiliation Affiliation Name Department of Mechanical Engineering, Kyushu University 九州大学大学院工学研究院
	Creator Name Peng, Zhang Affiliation Affiliation Name Department of Mechanical Engineering, Kyushu University
	Creator Name Hang, Su Affiliation Affiliation Name Department of Mechanical Engineering, Kyushu University
	Author PID 50314836 Creator Name Horikawa, Keitaro 堀川, 敬太郎ホリカワ, ケイタロウ Affiliation Affiliation Name Department of Mechanical Science and Bioengineering, Osaka University 大阪大学基礎工学研究科
	Creator Name Uesugi, kentaro 上杉, 健太朗ウエスギ, ケンタロウ Affiliation Affiliation Name Japan Synchrotron Radiation Institute (JASRI) 高輝度光科学研究センター
	Creator Name Takeuchi, Akihisa 竹内, 晃久タケウチ, アキヒサ Affiliation Affiliation Name Japan Synchrotron Radiation Research Institute(JASRI) 高輝度光科学研究センター
	Creator Name Sakaguchi, Nobuto サカグチ, ノブト Affiliation Affiliation Name UACJ Corporation
	Creator Name Watanabe, Yoshio ワタナベ, ヨシオ Affiliation Affiliation Name UACJ Corporation
Language	English
Date	2016-02-08
Source Title	Materials Science and Engineering : A
Vol	655
First Page	221
Last Page	228
Publication Type	Accepted Manuscript
Access Rights	open access
Related DOI	isVersionOf https://doi.org/10.1016/j.msea.2015.12.092
Abstract	In the present study, combined thermal desorption spectroscopy (TDS), microtomography and X-ray diffraction study has been carried out to identify the hydrogen trap sites in 7XXX aluminum alloys. Thro...ugh constant heating rate TDS experiments, three distinct trap states have been identified. It is revealed that micropores are the predominant hydrogen trap site in alloys with medium hydrogen content, whereas grain boundaries is the major hydrogen trap site in alloys with low and high hydrogen content. We have clarified that the rate of trap site occupancy in grain boundaries is high compared to dislocations and vacancies. Such high hydrogen coverage at grain boundaries indicates that the hydrogen-assisted fracture would be intergranular.show more

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Details

PISSN	0921-5093
NCID	AA10720420
Record ID	1812452
Peer-Reviewed	Refereed
Subject Terms	Thermal desorption spectroscopy
	Microtomography
	XRD
	Hydrogen trapping
	Hydrogen embrittlement
	Aluminum alloys
Created Date	2017.07.28
Modified Date	2018.08.16