Weldability Assessment of Preheated Ductile Iron Microstructures


When joining ductile iron by submerged arc welding technique, a suitable welding speed and current, among other fac- tors, need to be skillfully put in place so as to enhance good welding. This work is based on microstructural examina- tion of preheated ductile iron at various temperatures ranging between 100°C - 400°C. Optical microscope was used for the microstructure analysis. The result shows varied complex microstructures at the fusion zone, un-mixed zone, par- tially melted zone and at the heat affected zone.

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Kwa, D. , Borode, J. and Momoh, I. (2012) Weldability Assessment of Preheated Ductile Iron Microstructures. Journal of Minerals and Materials Characterization and Engineering, 11, 1000-1004. doi: 10.4236/jmmce.2012.1110102.

Conflicts of Interest

The authors declare no conflicts of interest.


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