Determination of Cyclic-Tension Fatigue of Al-4Cu-1Mg Alloy Using Ultrasonic Shear Waves
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- Yamagishi H.
- Central Research Institute, Toyama Industrial Technology Center
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- Fukuhara M.
- Institute for Materials Research, Tohoku University
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抄録
Cyclic-tension fatigue of aluminum alloy, Al-4Cu-1Mg, was determined by an analysis of diffracted SH and SV waves, passing through the surface and reflecting the bottom of the specimen, respectively. The propagation time of SH waves and the internal friction of SV waves begins to decrease and increase from fatigue damage ratio (=N⁄Nf) of 0.5, respectively, suggesting noticeable increase of movable dislocation. From the analysis of SH waves along the direction to the loading axis, the damping ratio decreases and the phase advances with increasing of the degree of fatigue. Assumed from SH wave flux model, the former behavior correlates well with increasing of the residual stress by cyclic tension. The latter may be characterized by viscoelasticity. These results show that ultrasonic transmission method is useful probe for evaluation of fatigue in aluminum alloy.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 48 (3), 550-555, 2007
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
- 1390282679228057728
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- NII論文ID
- 130004453502
- 10018735147
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 8671181
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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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