Influences of hydrogen on deformation and fracture behaviors of high Zn 7XXX aluminum alloys - Collections | Kyushu University Library

＜journal article＞
Influences of hydrogen on deformation and fracture behaviors of high Zn 7XXX aluminum alloys

Creator	Creator Name Bhuiyan, Md. Shahnewaz Affiliation Affiliation Name Department of Mechanical Engineering, Kyushu University
	Creator Name Tada, Yuki タダ, ユウキ Affiliation Affiliation Name Department of Mechanical Engineering, Kyushu University : Graduate Student
	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 Hang, Su Affiliation Affiliation Name Department of Mechanical Engineering, Kyushu University
	Creator Name Uesugi, kentaro 上杉, 健太朗ウエスギ, ケンタロウ Affiliation Affiliation Name Japan Synchrotron Radiation Research 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 Co. Ltd.
	Creator Name Watanabe, Yoshio ワタナベ, ヨシオ Affiliation Affiliation Name UACJ Co. Ltd.
Language	English
Date	2016-02-22
Source Title	International Journal of Fracture
Vol	200
Issue	1/2
First Page	13
Last Page	29
Publication Type	Accepted Manuscript
Access Rights	open access
Related DOI	https://doi.org/10.1007/s10704-016-0092-z
Related URI	https://doi.org/10.1007/s10704-016-0092-z
Relation	https://doi.org/10.1007/s10704-016-0092-z
Abstract	Hydrogen degrades the mechanical properties of high strength 7XXX aluminum alloys in two ways: (i) degrades the mechanical properties by hydrogen embrittlement, and (ii) partitioned into micropores as... molecular hydrogen and make contributions to ordinary ductile fracture. Themultifaceted effects of hydrogen on the mechanical properties of high Zn content 7XXX aluminum alloys during deformation and fracture is studied by using synchrotron X-ray microtomography. Our results have revealed that the hydrogen susceptibility has increased with increasing the Zn amount. High concentration of hydrogen was induced by the EDMwire eroder. This high concentrated hydrogen induces quasi-cleavage fracture and restricts the growth of micropores during ductile deformation. The threshold concentration of hydrogen ahead of the crack tip for the nucleation of quasi-cleavage featurewas estimated to be 13 cm3/100 g Al.show more

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Record ID	1812451
Peer-Reviewed	Refereed
Subject Terms	Microtomography
	Micropore
	Synchrotron radiation
	Hydrogen embrittlement
	Aluminum alloys
ISSN	0376-9429
DOI	10.1007/s10704-016-0092-z
NCID	AA00680330
Created Date	2017.07.28
Modified Date	2020.12.22