Fatigue Behaviors and Microstructures in an Extruded Mg-Al-Zn Alloy
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- Somekawa Hidetoshi
- Structural Metals Center, National Institute for Materials Science
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- Maruyama Norio
- Biomaterials Center, National Institute for Materials Science
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- Hiromoto Sachiko
- Biomaterials Center, National Institute for Materials Science
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- Yamamoto Akiko
- Biomaterials Center, National Institute for Materials Science
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- Mukai Toshiji
- Structural Metals Center, National Institute for Materials Science
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Tensile, compression and fatigue tests were carried out on a commercially extruded Mg-Al-Zn alloy having an average grain size of about 15 μm. The tensile and compression tests at room temperature showed that the yield strength in tension was much higher than that in compression. The lower yield strength in compression resulted from its texture. The effects of the mechanical anisotropy on the fatigue behavior and its deformed microstructure were also investigated under a stress ratio of R=0.1 and −1. The fatigue strength, stress amplitude, at N=107 cycles under R=−1 and 0.1 was about 120 and 90 MPa, respectively. The mechanical properties and the deformed microstructure observations indicated that the formation of deformation twins was related to the between maximum stress and the yield strength in tension and compression: the deformation twins were formed in the sample (maximum stress is higher than the yield strength) and showed no deformation twins in the sample (maximum stress is lower than the yield strength).
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 49 (3), 681-684, 2008
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001204249797120
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- NII論文ID
- 10021145463
- 130004453958
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 9413373
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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