Influence of Hydrogen on the Damage Behavior of IMC Particles in Al–Zn–Mg–Cu Alloys
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- Oikawa Ryoichi
- Faculty of Science and Engineering, Iwate University
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- Shimizu Kazuyuki
- Department of Physical Science and Materials Engineering, Iwate University
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- Kamada Yasuhiro
- Department of Physical Science and Materials Engineering, Iwate University
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- Toda Hiroyuki
- Department of Mechanical Engineering, Kyusyu University
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- Fujihara Hiro
- Department of Mechanical Engineering, Kyusyu University
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- Uesugi Masayuki
- Japan Synchrotron Radiation Research Institute
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- Takeuchi Akihisa
- Japan Synchrotron Radiation Research Institute
Bibliographic Information
- Other Title
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- Al-Zn-Mg-Cu合金中のIMC粒子損傷に及ぼす水素の影響
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Description
<p>In recent years, it has been reported that intermetallic compound particles can suppress hydrogen embrittlement by hydrogen trapping. Some intermetallic particles in aluminum alloys, such as Al7Cu2Fe, have internal hydrogen trap sites; it is proposed that hydrogen embrittlement can be suppressed by preferential hydrogen partitioning in these sites. However, intermetallic compound particles act as fracture origin sites, and excessive addition degrades the mechanical properties of the material. In this study, we quantitatively evaluated the damage and decohesion behavior of intermetallic compound particles in high-hydrogen content 7XXX aluminum alloys by using in situ synchrotron radiation X-ray tomography. The results revealed that the hydrogen particles induced early high-strain localization, and the Al7Cu2Fe particles were damaged in that region due to its brittleness, resulting in early fracture. Hydrogen had no effects on the fracture and debonding behaviors of intermetallic compound particles, suggesting that the observed particle brittle fracture is dependent on their mechanical properties.</p><p> </p><p>This Paper was Originally Published in Japanese in J. JILM 72 (2022) 411–419. Abstract and the captions of Figs. 1, 2, 4, 5, 6, 7, 9 and 10 are slightly modified.</p>
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 63 (12), 1607-1616, 2022-12-01
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390012733491821440
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- NII Book ID
- AA1151294X
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- ISSN
- 13475320
- 18808018
- 13459678
- 04515994
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- NDL BIB ID
- 032534818
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL Search
- Crossref
- KAKEN
- OpenAIRE
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- Abstract License Flag
- Disallowed