OS0707 Rotary bending fatigue strength of developed high-speed tool steels in very high cycle regime
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- SHIOZAWA Kazuaki
- Graduate School of Science and Engineering, University of Toyama
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- MURATA Shoichiro
- 富山大学大学院理工学教育部
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- SHIMATANI Yuji
- 富山大学大学院理工学教育部
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- NAKADA Takehiro
- ヤマハ発動機(株)
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- YOSHIMOTO Takashi
- (株)不二越
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- KOSHI Masao
- (株)不二越
Bibliographic Information
- Other Title
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- OS0707 開発マトリックスハイスの超高サイクル回転曲げ疲労強度特性評価(構造用材料の疲労挙動と寿命評価,オーガナイズドセッション)
Description
In order to evaluate the fatigue strength in very high cycle regime of newly developed two kind of high-speed tool steels, such as, MHS5 (0.9C-2W-2V-3Mo) and MH2 (0.5C-0.5V-2Mo-0.1Nb), rotary bending fatigue test was carried out inlaboratoiy air at room temperature using a hourglass shaped specimen S-N curve obtained from MHS5-specimen appeared to have a stepwise shape with a horizontal asymptote changing from the surface carbide induced failure mode (S-mode) in high stress amplitude level to the subsurface carbide induced one with GBF area in low stress amplitude level. On the other hand, transition of failure mode in MHS2-specimen was occurred from the S-mode in high stress amplitude level to crystal-slip induced failure mode formed in the specimen surface. It was suggested that the difference of failure mode in very high cycle regime between tested materials was caused by the size of carbide particles precipitated in the matrix.
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 2009 (0), 270-272, 2009
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390001205872057088
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- NII Article ID
- 110008064879
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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