Internal Pressure Creep Behaviors for Hastelloy X Cylinder with EB Butt Welded Joint

DOI

Bibliographic Information

Other Title
  • ハステロイＸＥＢ溶接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研究
  • 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3報)

Abstract

Creep tests under internal-pressure on circumferentially EB-welded cylinders made of Hastelloy X were carried out for the investigation of structural behaviors of welded components in elevated temperature environment. Penetration cracks were not observed at base metal zone but at weld metal zone. EB welded zone of the cylinder showed the comparable creep ductility as compared with the non-welded cylinder. The creep rupture strength of EB-welded cylinders was lower than that of non-welded cylinders, but superior to TIG-welded cylinders. The rupture time ratio of EB-welded cylinders to non-welded cylinders was smaller than the ratio of EB weld metal to base metal obtained from uni-aixal tests. The decrease in rupture strength under internal pressure is considered due to the difference in creep rates between EB weld metal and base metal.

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Keywords

Details 詳細情報について

  • CRID
    1390282681476777216
  • NII Article ID
    130003933350
  • DOI
    10.2207/qjjws1943.51.21
  • ISSN
    18837204
    00214787
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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