Creep Strength of Hastelloy X TIG-welded Cylinder under Internal Pressure at Elevated Temperature
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- Udoguchi Teruyoshi
- Tokyo University
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- Indo Hirosato
- Chiba Laboratory. Mitsui Engineering & Ship Building Co., Ltd.
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- Isomura Kazayuki
- Chiba Laboratory. Mitsui Engineering & Ship Building Co., Ltd.
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- Kobatake Kiyokazu
- Nuclear Systems Division Kawasaki Heavy Industries Co., Ltd.
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- Nakanishi Tsuneo
- Fuji Electric Corporate Research and Development Ltd.
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- Kurumaji Takaharu
- Babcock-Hitachi K.K.
Bibliographic Information
- Other Title
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- ハステロイX TIG周継手円筒の高温内圧クリープ強度 ハステロイX溶接継手円筒の高温内圧クリープ挙動の研究 I
- ハステロイX溶接継手円筒の高温内圧クリープ挙動の研究(第1報)
Abstract
Creep tests on circumferentially TIG-welded Hastelloy x cylinders were carried out under internal pressure for the investigation of structural behavior of welded components in high temperature enviror. ment. The creep rupture strength of TIG-welded cylinders was much lower than that of non-welded cylinders, while such reduction was not found in uniaxial creep tests on TIG-welded bars. It was deduced that the reduction was due to the low ductility (ranging from 1 to 5 %) of the weld metal to which enhanced creep was induced by the adjacent base metal whose creep strain rate was much higher than that of the weld metal. Therefore, uniaxial creep tests on bar specimens is not sufficient for proper assessment of the creep rupture strength of welded components. Both creep strain rate and creep ductility should be concerned for the assessment. Creep tests by using components such as cylinder under internalpressure are recommendable for the confirmation of creep strength of welded structures and components.
Journal
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- JOURNAL OF THE JAPAN WELDING SOCIETY
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JOURNAL OF THE JAPAN WELDING SOCIETY 50 (9), 904-910, 1981
JAPAN WELDING SOCIETY
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Keywords
Details 詳細情報について
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- CRID
- 1390001206498502656
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- NII Article ID
- 130003933342
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- ISSN
- 18837204
- 00214787
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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