書誌事項
- タイトル別名
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- Detection of Artificial Defects Existing Near Surface of Aluminum Alloy Die-castings by Ultrasonic Measurement
- チョウオンパ ソクテイ ニ ヨル アルミニウム ゴウキン ダイカスト ノ ヒョウメン キンボウ ニ ナイザイ スル ジンコウ ケッカン ノ ケンシュツ
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Surface acoustic wave (SAW, or Rayleigh wave) measurement was carried out with specimens containing artificial holes of different diameters at different depths to develop a nondestructive method of detecting casting defects existing near the surface of castings. SAW intensity was measured at different distances from the hole position, and that reflected from holes was found to increase with decreasing distance from the hole, peaking before the hole. Just before maximizing, the SAW intensity takes a local minimum. These results confirm that ultrasonic measurement is able to detect holes with a diameter of 0.5mm or larger existing at a depth of 0.5mm or less. In addition, the position of the hole was roughly evaluated, without fixing the hole depth. The results obtained by the SAW measurement were compared with those by surface SH wave measurement.
収録刊行物
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- 鋳造工学
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鋳造工学 83 (4), 181-187, 2011
公益社団法人 日本鋳造工学会
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詳細情報 詳細情報について
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- CRID
- 1390282681488045824
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- NII論文ID
- 10028113481
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- NII書誌ID
- AN10514770
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- ISSN
- 21855374
- 13420429
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- NDL書誌ID
- 11079351
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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
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可