Characteristics of grain boundaries on intergranular fractured Al–Zn–Mg alloy aged at peak condition
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- Watanabe Katsumi
- Graduate School of Science and Engineering for Education, University of Toyama
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- Matsuda Kenji
- Graduate School of Science and Engineering for Research, University of Toyama
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- Miura Naoya
- Graduate School of Science and Engineering for Education, University of Toyama
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- Uetani Yasuhiro
- Toyama Prefectural University
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- Ikeno Susumu
- Hokuriku Polytechnic College
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- Yoshida Tomoo
- Aisin Keikinzoku Co., Ltd.
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- Murakami Satoshi
- Aisin Keikinzoku Co., Ltd.
Bibliographic Information
- Other Title
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- 粒界破断したピーク時効状態のAl–Zn–Mg合金における結晶粒界の特徴
- リュウカイハダンシタ ピーク ジコウ ジョウタイ ノ Al-Zn-Mg ゴウキン ニ オケル ケッショウ リュウカイ ノ トクチョウ
- Characteristics of grain boundaries on intergranular fractured Al^|^ndash;Zn^|^ndash;Mg alloy aged at peak condition
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Abstract
In this paper, the phenomenon of intergranular fracture in a peak-aged Al–6.7%Zn–2.8%Mg–0.4%Cu alloy has been investigated by an electron backscattered diffraction (EBSD) technique and the effect of crystallographic orientation on the crack propagation was clarified. Individual grain boundaries were divided into four groups based on their difference in Schmidt factor (S.F.) and stress transfer factor (Nij). The difference in S.F. higher than 0.05 corresponds with the groups A and B and lower that 0.05 is characteristic for the groups C and D. Nij factor higher than 0.5 is specific for the groups A and C and the groups B and D having this factor lower than 0.5. It has been found that grainboundary fracture occurs at the boundaries belonging to the group D in 46% of all cases, in 24% corresponding with the group B and in 23% with the group C. Preferential deformation in the vicinity of grainboundaries belonging to the group B has been also verified by an atomic force microscopy (AFM) technique as the same as a case in the peak-aged Al–Mg–Si alloy.
Journal
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- Journal of Japan Institute of Light Metals
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Journal of Japan Institute of Light Metals 64 (8), 368-372, 2014
The Japan Institute of Light Metals
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Details 詳細情報について
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- CRID
- 1390001206338770944
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- NII Article ID
- 130004695365
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- NII Book ID
- AN00069773
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- ISSN
- 18808018
- 04515994
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- NDL BIB ID
- 025727686
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed