書誌事項
- タイトル別名
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- Influences of Matrix Structure on Notch Effects in Tensile and Fatigue Characteristics of Spheroidal Graphite Cast Iron
- キュウジョウ コクエン チュウテツ ノ キリカキ ヒッパリ オヨビ ヒロウ トクセイ ニ オヨボス キチ ソシキ ノ エイキョウ
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The influences of the matrix structure on the notch effect in tensile and rotating-bending fatigue characteristics were investigated by using four kinds of spheroidal graphite (SG) cast iron samples whose matrix structures are ferritic, pearlitic, upper bainitic and lower bainitic. While the stress concentration factor (α) was smaller than 2.3, the tensile strength of notched specimens was larger than that of smooth specimens regardless of the matrix structure. This is considered to be due to the plastic constraint effect caused by triaxial stress. All the samples showed that a notched specimen with a larger α resulted in a smaller in fatigue strength than a smooth specimen in all the α ranges examined. A larger decrement in the fatigue strength of a specimen with a larger α is considered mainly due to an earlier occurrence of cracks. The notch effect in the tensile and fatigue strength of SG iron is affected largely by its matrix structure.
収録刊行物
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- 鋳造工学
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鋳造工学 73 (1), 9-13, 2001
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
- 1390282681482651392
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- NII論文ID
- 10005743826
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- NII書誌ID
- AN10514770
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- ISSN
- 21855374
- 13420429
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- NDL書誌ID
- 5643708
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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
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可