書誌事項
- タイトル別名
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- Effects of Sub-surface Defects Newly Found in Tempered Aluminum Alloy Die-castings on Fatigue Properties.
- ネツ ショリ シタ アルミニウム ゴウキン ダイカスト デ アラタ ニ ミツカッタ イハダ ケッカン ト ソノ ヒロウ トクセイ エ ノ エイキョウ
この論文をさがす
抄録
Usually, aluminum die-cast alloys are used with casting surface, therefore it can be assumed that defects exist in the sub-surface regions. These defects are largely neglected in conventional evaluations as these regions are removed before testing. In the present study, fatigue tests were performed using specimens with casting surface. Fatigue life was statistically analyzed, and synchrotron radiation X-ray microtomography was also applied to visualize surface defects in 3D together with the in-situ observation of crack initiation. The results revealed that specimens with shorter fatigue lives exhibit aligned micropores of approximately 10μm in diameter in a sub-surface region, which inevitably cause premature fatigue crack initiation. The in-situ observation clearly revealed fatigue crack initiation at agglomerated micropores.
収録刊行物
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- 鋳造工学
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鋳造工学 81 (10), 475-481, 2009
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
- 1390001206506806016
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- NII論文ID
- 10025595256
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- NII書誌ID
- AN10514770
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- COI
- 1:CAS:528:DC%2BD1MXhsVKgtrfL
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- ISSN
- 21855374
- 13420429
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- HANDLE
- 2324/1807815
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- NDL書誌ID
- 10462676
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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
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可