A New Potential for Welded Structures in Modified X2CrNi12: Characterization of Dissimilar Arc Weld with S355 Steel


Taban E. , Kaluç E. , Dhooge A., Deleu E.

Fabrication and Economy of Welded Structures, Miskolc, Hungary, 24 - 26 April 2008, vol.1, pp.511-518

  • Publication Type: Conference Paper / Full Text
  • Volume: 1
  • Doi Number: 10.1533/9781782420484.12.511
  • City: Miskolc
  • Country: Hungary
  • Page Numbers: pp.511-518

Abstract

    In this study, modified X2CrNi12 ferritic stainless steel conforming in composition to grades UNS S41003 (ASTM A240) and Wr. Nr. 1.4003 (EN 10088-2 and EN 10028-7) has been welded to non-alloy S355 steel by means of flux cored arc welding (FCAW) process. A dissimilar butt welded joint was subjected to a series of tests in order to investigate all aspects of the weld properties. Mechanical testing was carried out by means of Charpy impact, tensile and bend tests. Microstructural examinations including hardness surveys, ferrite content measurements and grain size analyses of various weld regions were realised. Salt spray and blister tests were also applied as exposure testing. Rather promising results have been obtained yielding a correlation between microstructure and impact toughness.

      In this study, modified X2CrNi12 ferritic stainless steel conforming in composition to grades UNS S41003 (ASTM A240) and Wr. Nr. 1.4003 (EN 10088-2 and EN 10028-7) has been welded to non-alloy S355 steel by means of flux cored arc welding (FCAW) process. A dissimilar butt welded joint was subjected to a series of tests in order to investigate all aspects of the weld properties. Mechanical testing was carried out by means of Charpy impact, tensile and bend tests. Microstructural examinations including hardness surveys, ferrite content measurements and grain size analyses of various weld regions were realised. Salt spray and blister tests were also applied as exposure testing. Rather promising results have been obtained yielding a correlation between microstructure and impact toughness.