Mechanism of Internal Fracture of Shot Peened Maraging Steel
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- KAWAGOISHI Norio
- Dept. of Mech. Eng., Faculty of Eng., Kagoshima Univ.
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- NAGANO Takanori
- Dept. of Mech. Eng., Miyakonojo National College of Tech.
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- MORIYAMA Michihiko
- Dept. of Mech. Eng., Daiichi Uuiv., College of Tech.
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- OHZONO Yoshihisa
- Center of Instrumental Analysis, Kagoshima Univ.
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- KONDO Eiji
- Dept. of Mech. Eng., Faculty of Eng., Kagoshima Univ.
Bibliographic Information
- Other Title
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- ショットピーニングしたマルエージング鋼の内部破壊機構
- ショットピーニング シタ マルエージング コウ ノ ナイブ ハカイ キコウ
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Abstract
Rotating bending fatigue tests were carried out for a shot peened maraging steel in order to investigate the influence of reverted austenite on the internal fracture. Fracture initiated from an internal inclusion regardless of the formation of reverted austenite in long life region, while fracture occurred from a rough surface of specimen in short life region. Although fatigue strength was decreased when surface fracture occurred, that for an internal fracture was increased conversely by the formation of reverted austenite. Many intergranular cracks generated after the formation of flat facets around an inclusion and then fractured by the growth of a surface crack in case of no reverted austenite, while by the formation of reverted austenite intergranular cracking was suppressed and the growth process of an internal crack presented after intergranular cracking. Consequently, an orbit trace was formed clearly at the boundary between the growth of an internal crack and that of a surface crack.
Journal
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- Journal of the Society of Materials Science, Japan
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Journal of the Society of Materials Science, Japan 55 (9), 843-848, 2006
The Society of Materials Science, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390001205417487104
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- NII Article ID
- 110006571012
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- NII Book ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL BIB ID
- 8513395
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed