Measurement of Kinetic Energy of Flying Fragments in Bending Test of WC-10mass%Co Cemented Carbide.
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- Yanaba Yutaka
- Institute of Industrial Science, The University of Tokyo
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- Hayashi Koji
- Institute of Industrial Science, The University of Tokyo
書誌事項
- タイトル別名
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- Measurement of Kinetic Energy of Flying
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The kinetic energy (Ek) of flying fragments in three-point bending test of WC-10mass%Co cemented carbide was experimentally evaluated by our devised convenient method for a test piece with size of 4×3×36mm3 and a span of 30mm, and the ratio of Ek to the elastic strain energy (E ?? )which was stored in the test piece just before the fracture was calculated. It was found that Ek increased from 0.016J to 0.046J and the ratio of Ek/E ?? increased from 0.09 to 0.15 with increasing flexural strength (σm). It was suggested that the error due to Ek in the relative value of fracture toughness (KIc) estimated by using the equation of σm= ?? KIcSmf1/2 ( ?? is a factor including the shape of fracture source, the roughness of fracture surface and the correction parameter, etc., and Smf is the total macroscopic area of fracture surfaces of fragments of one test piece), in the derivation of which Ek is neglected, was +6.5%, if the effect of the other factors on the relative value of KIc are small.
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 44 (3), 257-262, 1997
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
- 1390282681285249408
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- NII論文ID
- 10002013662
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- NII書誌ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL書誌ID
- 4172710
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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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