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低温における5.5%Ni鋼の溶接各部における疲労き裂伝播特性および疲労破壊靭性
http://hdl.handle.net/10076/4872
http://hdl.handle.net/10076/48723b2eb34c-b3ef-48c5-8c7f-a75b85a6d836
Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2018-03-16 | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | 低温における5.5%Ni鋼の溶接各部における疲労き裂伝播特性および疲労破壊靭性 | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
佐藤, 清
× 佐藤, 清× 五十嵐, 寛 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Fatigue test and fracture toughness test in 5.5% Ni steel weldments in the temperature range from 98K to room temperature were experimentally carried out. Both the tests were performed with a compact tension specimen by using a program-load-controlled 0.98MN fatigue testing machine. The main results obtained are summarized as follows: (1) Fatigue crack propagation rate in weld metal zone is very larger than that in both base metal and HAZ (heat affected zone.) On the contrary, fatigue life, <special>Nƒ</special> in weld metal zone is lower than a half-value of that in both base metal and HAZ. (2) Within the temperature range from 98K to room temperature, the power coeffinient, n of da/dN=A⊿<special>Kn</special> is related with 1/T as n=<special>b1</special>+<special>a1</special>/kT, and da/dN shows Arrhenius type. Apparent activation energy, Q is related with ⊿K as Q=U-<special>a1ln⊿K</special> within the same tremperature range. These trends are in good agreement with the dislocation dynamics theory of fatigue crack propagation. (3) Fatigue fracture toughness, <special>KƒC</special> and fracture toughness, <special>KC</special> in base metal are larger than those in both weld metal zone and HAZ. | |||||
書誌情報 |
三重大学教育学部研究紀要. 自然科学 巻 48, p. 97-103, 発行日 1997-03-15 |
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ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0389-9225 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00234199 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
その他のタイトル | ||||||
en | ||||||
Fatigue Crack Propagation Characteristic and Fatigue Fracture Toughness in 5.5% Ni Steel Weldments at Low Temperature | ||||||
出版者 | ||||||
出版者 | 三重大学教育学部 | |||||
資源タイプ(三重大) | ||||||
Departmental Bulletin Paper / 紀要論文 |