書誌事項
- タイトル別名
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- Evaluation of Dislocation Behavior Due to Fatigue Damage Using Ultrasonic Spectroscopy.
- ヒロウ ソンショウ ニ トモナウ テンイ キョドウ ノ チョウオンパ スペクトロスコピー ニ ヨル ヒョウカ
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抄録
The dislocation behavior, i.e. density of mobile dislocation and eigen-frequency of dislocation strings, are closely related to fatigue damage of materials. We can estimate the density of mobile dislocation under fatigue process by measuring ultrasonic wave velocities with three-different propagating frequencies via Granato-Lucke's dislocation string theory. In the present paper, the correlation of the mobile dislocation density with fatigue damages both of aluminum alloy and chromium-molybdenum alloy steels was examined. The results obtained are as follows. The ultrasonic wave velocities with three-different propagating frequencies (5, 10 and 15 MHz) decreased due to increasing of number of fatigue cycles in the both cases of aluminum alloy and chromium-molybdenum alloy steel. The density of mobile dislocation in the both cases estimated by Granato-Lucke's model increased in the fatigue damage progress.
収録刊行物
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- 日本機械学会論文集A編
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日本機械学会論文集A編 68 (675), 1533-1539, 2002
一般社団法人 日本機械学会
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詳細情報
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- CRID
- 1390001204446535040
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- NII論文ID
- 110002378123
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- NII書誌ID
- AN0018742X
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- ISSN
- 18848338
- 03875008
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- NDL書誌ID
- 6365926
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可