書誌事項
- タイトル別名
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- Characteristics of Small Crack Growth in a Nickel-Base Superalloy.
- Niキ チョウゴウキン ノ ビショウ キレツ デンパ トクセイ
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抄録
Rotating bending fatigue tests were carried out for Inconel 718 at room temperature to investigate the growth characteristics of a small crack. It was found that : (1) The crack initiated at the grain boundary and then propagated as a transgranular crack. (2) When the stress level was higher than the fatigue limit, the fatigue life was mainly controlled by the growth life of a crack smaller than 1mm. (3) The fatigue limit was a limiting stress for the crack propagation. (4) At low stress levels (σa/σ0.2<0.5, σa : stress amplitude, σ0.2 : 0.2% proof stress), the crack growth rate was determined by the stress intensity factor range ΔK ; and at high stress levels (σa/σ0.2>0.6), it was determined by the small crack growth law.
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 63 (611), 1398-1402, 1997
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
- 1390282679424297728
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- NII論文ID
- 110002374182
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- NII書誌ID
- AN0018742X
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- ISSN
- 18848338
- 03875008
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- NDL書誌ID
- 4265502
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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
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- 抄録ライセンスフラグ
- 使用不可