書誌事項
- タイトル別名
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- Characterization of high temperature long-term fatigue properties for advanced ferritic heat-resisting steels
- コウキョウド フェライトケイ タイネツ コウ ノ チョウキ コウオン ヒロウ トクセイ ノ カイセキ
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説明
Axial strain-controlled fatigue tests of a 9Cr-2W and a 12Cr-2W ferritic heat-resisting steels were performed to obtain fatigue life curves (S-N curve) over a wide from102 to 106 cycles at room temperature (RT) , 400, 600, 650 and 700°C, respectively.<br>As the results, Manson-Coffin relationships between plastic strain range and fatigue life for the both the steels show linear at room temperature and 400°C.<br>However, the relationships have inflection around 104 cycles beyond 600°C. There are differences in hystresis loops between in the low-and high cycle regions at these elevated temperatures. Moreover, it is cleared that subgrains became coarse uniformely in the low-cycle regions, while subgrains did coarse locally near grain boundaries, in the high-cycle regions.<br>Therefore it is suggested that differences in the mechanical factors and change in subgrain structure cause the inflection of the relations at the elevated temperatures.<br>Then, a modified universal slope method is proposed for S-N curves that considered to inflection in Manson-coffin relation.
収録刊行物
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- 圧力技術
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圧力技術 47 (3), 161-170, 2009
一般社団法人 日本高圧力技術協会
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詳細情報 詳細情報について
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- CRID
- 1390001204615646208
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- NII論文ID
- 130004446842
- 10024827282
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- NII書誌ID
- AN00011762
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- ISSN
- 13479598
- 03870154
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- NDL書誌ID
- 10335710
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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
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可
