Effect of ferrous primary crystals on cavitation in Al-4.5mass%Mg alloys during creep deformation.
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- HOSOKAWA Hiroyuki
- Graduate Student, Department of Materials Science and Engineering, Himeji Institute of Technology
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- IWASAKI Hajime
- Department of Materials Science and Engineering, Himeji Institute of Technology
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- MORI Takasuke
- Department of Materials Science and Engineering, Himeji Institute of Technology
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- TAGATA Tutomu
- SKY Aluminum Co. Ltd.
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- MABUCHI Mamoru
- National Industrial Research Institute of Nagoya
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- HIGASHI Kenji
- Department of Material, Osaka Prefecture University
Bibliographic Information
- Other Title
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- Al‐4.5%Mg合金におけるクリープ変形中の空洞発生に及ぼす鉄晶出物の影響
- Al-4.5%Mg合金におけるクリープ変形中の空洞発生に及ぼす鉄晶出物の影響
- Al-4.5パーセント Mg ゴウキン ニ オケル クリープ ヘンケイ チュウ ノ クウドウ ハッセイ ニ オヨボス テツショウシュツブツ ノ エイキョウ
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Abstract
Deformation and cavitation characteristics have been investigated at 613∼693 K for Al–4.5 mass%Mg–0.05 mass%Fe and Al–4.5 mass%Mg–0.2 mass%Fe alloys with grain size of 50 μm. The alloys showed strain-rate sensitivity of 0.3 over a strain-rate range from 10−5 s−1 to 10−2 s−1 and elongation-to-failure above 300% at a strain-rate of 1 × 10−3 s−1. The results indicates that the alloys behave like Glass I type which deformation is controlled by dislocation glide dragged by solute atoms. Cavitation was increased by increasing iron content for all strains. Most cavities were nucleated at the interface between ferrous primary crystal and matrix and elongated parallel to the tensile direction. The critical diameter of the primary crystal, above which cavity is nucleated, was 1.5 μm at grain boundary and 0.5 μm at grain interior, which were very close to the theoretical results.
Journal
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- Journal of Japan Institute of Light Metals
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Journal of Japan Institute of Light Metals 49 (2), 57-61, 1999
The Japan Institute of Light Metals
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Details
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- CRID
- 1390282681314105600
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- NII Article ID
- 10002665852
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- NII Book ID
- AN00069773
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- COI
- 1:CAS:528:DyaK1MXhslGru70%3D
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- ISSN
- 18808018
- 04515994
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- NDL BIB ID
- 4662035
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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