OS2101 Fracture Mechanics Study on Fatigue Limit in Interior Induced Fracture Mode for Bearing Steel in Rotating Bending
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- OGUMA Noriyasu
- Science and Engineering, University of Toyama
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- SEKISUGI Naoya
- 富山大学大学院理工学教育部
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- ODAKE Yasuhiro
- (株)不二越軸受事業部
Bibliographic Information
- Other Title
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- OS2101 軸受鋼の回転曲げ疲労における内部起点型破壊モードの疲労限度に関する破壊力学的考察
Description
In order to examine the fatigue limit in interior induced fracture mode for bearing steel, rotating bending fatigue tests were carried out at the stress amplitude 1100MPa below the fatigue limit in surface induced fracture mode. The tests were interrupted at arbitrary number of cycles to charge hydrogen. And then the fatigue tests were continuously carried out. Based on SEM observations of the fracture surfaces, FGA was not formed in all specimens. Fracture mechanics study was performed for FGA formed fracture surfaces. As a result, the relation between the stress intensity factor range of FGA, AKFGA, and number of cycles before hydrogen-charging did not show good correlation. However, AKFGA tended to increase with an increase in the ratio of prediction FGA size to real FGA size. From this relation, AKFGA in which FGA is not formed in very high cycle fatigue regime was estimated.
Journal
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- The Proceedings of the Materials and Mechanics Conference
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The Proceedings of the Materials and Mechanics Conference 2014 (0), _OS2101-1_-_OS2101-3_, 2014
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390001205875025920
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- NII Article ID
- 110009939730
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- ISSN
- 24242845
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed