A Study on High Temperature Tensile Property of Inconel 625 for Petroleum Application by Flux cored Arc Welding Process

석유시추용 인코넬 625강의 FCAW용접에 의한 고온인장 특성에 관한 연구

  • PARK KEYUNG-DONG (Pukyoung National University DEPT. of Mechanical Engineering) ;
  • AN DO-KEYUNG (Pukyoung National University DEPT. of Mechanical Engineering) ;
  • JIN YOUNG-BEOM (Pukyoung National University DEPT. of Mechanical Engineering)
  • 박경동 (부경대학교 기계공학부) ;
  • 안도경 (부경대학교 기계공학부 대학원) ;
  • 진영범 (부경대학교 기계공학부 대학원)
  • Published : 2004.05.01

Abstract

Inconel 625 is useful in variety of industrial applications because of the resistance to attack in various corrosive media at temperatures from $200^{\circ}C$ to over $1090^{\circ}C$, in combination with good law- and high temperature mechanical strength. Rencently, this material is also used widely in offshore processing piping in order to extend the maintenance tenn and improve the quality of anti-corrosion. In general, high quality weldments for this material are readily produced by commonly used processes. Not all processes are applicable to this material group, Ni-alloys. Metallurgiad characterictics or the unavailability of matching, position or suitable welding processes. Nowadays, the flux cored wire is developed and applied for the better productivity in several welding position including the vertical position. in this study, the weldability and weldment characteristics of inconel 625 are considered in FCAW weld associated with the several shielding gases($80\%Ar\;+\;20\%\;CO_2,\;50\%Ar\;+\;50\%\;CO_2,\;100\%\;CO_2$) in viewpoint of welding productivity.

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