書誌事項
- タイトル別名
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- Fatigue Fracture of Ti-5Al-2. 5Sn ELI Alloy at Liquid Helium Temperature
- エキタイ ヘリウム オンド ニ オケル Ti 5Al 2.5SnELI ゴウキ
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抄録
S-N curves of Ti-5Al-2.5Sn ELI alloy were determined at liquid helium temperature (4 K) for both the base and the welded materials.<BR>The base material had longer fatigue life at 4 K than at 77 K. Welding deteriorated the fatigue property at 4 K. Internal crack initiation was seen at the lower cyclic stress for both the base and the welded material. For the base material, the internal initiation occurred only at 4 K and there were no defects near the initiation sites. On the other hand, fatigue cracks generally initiated at blow holes for the weldment. Internal crack initiation is considered one of the causes to scatter or shorten the fatigue life.<BR>High frequency brought about large temperature increase inside the specimen and it made the testing temperature uncertain in fatigue tests at cryogenic temperature.
収録刊行物
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- 鉄と鋼
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鉄と鋼 72 (6), 641-648, 1986
一般社団法人 日本鉄鋼協会
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詳細情報 詳細情報について
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- CRID
- 1390282680160682112
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- NII論文ID
- 110001491724
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- NII書誌ID
- AN00151251
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- ISSN
- 18832954
- 00211575
- http://id.crossref.org/issn/00211575
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- NDL書誌ID
- 3070626
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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