書誌事項
- タイトル別名
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- Material Characterization of Cast Iron by Eddy Current Testing
- ウズデンリュウホウ ニ ヨル チュウテツ ノ ザイシツ ヒョウカ
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抄録
Eddy current testing was applied for the quantitative evaluation of the matrix structure and hardness of ductile cast iron. Two kinds of specimen groups, (1) 19 specimens of the 5-step bar type and (2) 57 specimens cut from actual casting products, were prepared. Three types of eddy current equipments, (1) Commercial eddy current tester, (2) Special tester designed for cast iron characterization, (3) Simple tester using an iron core coil were used. The correlation coefficient (R) between Brinell hardness and eddy current signal of 50 kHz was as high as 0.92 for all the specimens, and 0.96 for the selected specimens having similar chemical composition and graphite shape. The specially designed tester, which is easy to handle and inexpensive, showed almost the same accuracy as the commercial eddy current tester. Distortion of the eddy current signal caused by strong magnetic field with an iron core coil was larger in ferritic cast iron than in pearlitic cast iron. This discrepancy was detected through a high pass filter and successfully applied to evaluate the hardness of cast iron.
収録刊行物
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- 鋳造工学
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鋳造工学 75 (10), 675-681, 2003
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
- 1390001206507392768
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- NII論文ID
- 130004556449
- 10013907938
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- NII書誌ID
- AN10514770
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- COI
- 1:CAS:528:DC%2BD3sXpsVKnsLs%3D
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- ISSN
- 21855374
- 13420429
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- NDL書誌ID
- 6730439
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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
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可