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

DOI

書誌事項

タイトル別名
  • Creep Strength of Hastelloy X TIG-welded Cylinder under Internal Pressure at Elevated Temperature
  • 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)

抄録

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.

収録刊行物

  • 溶接学会誌

    溶接学会誌 50 (9), 904-910, 1981

    一般社団法人 溶接学会

キーワード

詳細情報 詳細情報について

  • CRID
    1390001206498502656
  • NII論文ID
    130003933342
  • DOI
    10.2207/qjjws1943.50.904
  • ISSN
    18837204
    00214787
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • Crossref
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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