A Study of Dissimilar Weldability of Incoloy 825 with Mild Steel

Incoloy 825합금 및 탄소강의 이종강종간 용접특성 연구

  • Kim, Hui-Bong (Dept. of Metallurgical Engineering, Hanyang University) ;
  • Lee, Chang-Hui (Dept. of Metallurgical Engineering, Hanyang University)
  • Published : 1997.02.01

Abstract

This study has evaluated the dissimialr weldability of Incoloy 825 Ni base alloy with a mild steel(SS41). Further a compatibility study of wrveral Ni base filler metals with the dissimilar joint between the two alloys was also included. The dissimilar weldability of Incoloy 825 with mild steel is strongly dependent upon the type of the filler metal used. Among the filler metals, ENiCrFe which has a chemical comosition similar to that of Incoloy 825 was found to be most compatible to the joint. In addition, a filler metal which showed a good cracing resistance in one dissimiar alloy combination was not necessarily graranteed to other combination. Microstructural examination with SEM, TEM and Auger revealed that the solidification cracking resestance of the dissimilar joint. between Incoloy 835 and SS41 was closely with the Ti+Nb content and with the content of a low melting eutectic phase of Laves relatibve to that of MC type phase.

Keywords

References

  1. Unpublished research C.H.Lee(et al.)
  2. Incoloy alloy 825, Bulletin Inco Alloys International, Inc.
  3. SUPERALLOYS Ⅱ C.T.Sims(ed.);N.S.Stoloff(ed.);W.C.Hagel(ed.)
  4. Welding Nickel Alloys, Bulletin Inco Alloys International, Inc.
  5. Welding Journal v.69 no.11 T.J.Kelley
  6. Metallurgical Transactions A v.17A no.11 M.J.Cieslak;T.J.Headley;A.D.Romig
  7. Welding Journal v.51 no.9 A.C.Lingenfelter
  8. Welding Journal v.23 no.6 J.A.Brooks;R.W.Krenzer
  9. Welding Journal v.51 no.3 H.Yoshimura;K.Winterton
  10. Welding Journal v.53 no.11 J.A.Brooks
  11. Welding Journal v.62 no.1 J.C.Lippold
  12. Welding Journal v.68 no.10 S.C.Ernst;W.A.Baeslack Ⅲ;J.C.Lippold
  13. Metallurgical Transactions A v.24 no.5 R.Nakkalil;M.C.Chaturvedi
  14. Metallurgical Transactions A v.22 no.4 B.Radhakrishinan;R.G.Thompson
  15. Welding Journal v.56 no.8 W.F.Savage;E.F.Nippes;G.M.Goodwin
  16. ISIJ International v.30 no.7 T.Sawai;Y.Useshima;S.Mizoguchi
  17. J. of the Korean Inst. of Met. and Mater. v.31 no.6 C.H.Lee;R.W.Chang
  18. WELDING RESEARCH, THE STATE OF THE ART C.D.Lundin;C.H.Lee;R.Menon