書誌事項
- タイトル別名
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- Effect of Grain Size on Ultrasonic Fatigue Properties of Ni-Base Super Alloy Inconel 718
- Niキ チョウゴウキン インコネル 718 ノ チョウオンパ ヒロウ トクセイ ニ オヨボス ケッショウ リュウケイ ノ エイキョウ
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Ultrasonic fatigue tests of plain specimens with different grain sizes were carried out for Ni-base super alloy, Inconel 718, in ambient air in order to investigate the effect of grain size on fatigue properties. Fatigue strength was increased with decrease in grain size. The increase in fatigue strength by refining grain size was mainly caused by the suppression of crack initiation. That is, the effect of grain size on crack growth rate was hardly recognized, though crack morphology was rougher in the specimen of larger grain, meaning that the crack growth in the large-grained specimens was suppressed by roughness induced crack closure. On the other hand, however, more flat facets caused by twin boundary cracking were observed in the large-grained specimens, which inversely led to crack growth acceleration.
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 74 (743), 1000-1005, 2008
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390001204478720128
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- NII論文ID
- 110006836792
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- NII書誌ID
- AN0018742X
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- COI
- 1:CAS:528:DC%2BD1cXhtFOjtr3F
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- ISSN
- 18848338
- 03875008
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- NDL書誌ID
- 9592731
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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
- IRDB
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可