書誌事項
- タイトル別名
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- Effects of small defects and inclusions on fatigue strength of maraging stell.
- マルエージング コウ ノ ヒロウ キョウド ニ オヨボス ビショウ ケッカン
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Effects of artificial small defects (drilled hole, shallow notch and the indentation of the Vickers hardness) on the fatigue strength of a maraging steel which received various aging treatments for the attainment of various hardness levels were studied. The fatigue strength σw can be predicted by σw = 0.65(HV+960)/(√(area))1/6………(a) where HV is the Vickers hardness number and √(area) is the square root of the projected area of the artificial defect onto the plane normal to the direction of the maximum tensile stress. Equation (a) explains the reason of relatively low fatigue strength σw0 of maraging steel even with high hardness, because the maraging steel used in this study contains spherical inclusions of TiC with approximately 10 μm diameter and the value of √(area) of TiC was estimated to be about 9 μm by the investigation of the microstructure. Substituting this value and HV into Eq. (a), we can obtain the values of σw0 which are in good agreement with the experimental results. These results suggest that the improvement in fatigue strength of maraging steel and hard steel may be achieved from the viewpoint of Eq. (a).
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 53 (492), 1482-1491, 1987
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
- 1390001204479621504
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- NII論文ID
- 110002377364
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- NII書誌ID
- AN0018742X
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- ISSN
- 18848338
- 03875008
- http://id.crossref.org/issn/03875008
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- NDL書誌ID
- 3145305
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可