書誌事項
- タイトル別名
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- Ultrasonic attenuation of cemented tungsten carbides under uniaxial compression
- 1ジク アッシュク カ ニ オケル チョウコウゴウキン ノ チョウオンパ ゲンスイ ニ ツイテ
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Changes of ultrasonic attenuation under uniaxial compression have been investigated for WC-Co alloys containing various cobalt contents and grain sizes by means of a conventional ultrasonic apparatus; the measuring frequency was 10 MHz. The attenuation of the alloys plotted against the amount of prestrain began to increase rapidly above some critical strain. This critical strain increased with increasing Co contents and grain sizes of WC. The ratio of the compressive rupture strain (εr) and the critical strain (εc) invariably remained constant, i.e.εr/εc≅4. Microscopic observations showed that the generation of micro-cracks at grain boundaries is responsible for the increase of the attenuation. Under compressive fatigue stresses, the attenuation increased rapidly after a certain number of fatigue cycles prior to the rupture of the alloy.
収録刊行物
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- 粉体および粉末冶金
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粉体および粉末冶金 20 (1), 23-29, 1973
一般社団法人 粉体粉末冶金協会
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詳細情報 詳細情報について
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- CRID
- 1390001206308258944
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- NII論文ID
- 130000816742
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- NII書誌ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL書誌ID
- 7641941
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- データソース種別
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- JaLC
- NDL
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- 使用不可