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Weldability Assessment of Preheated Ductile Iron Microstructures
Department of Research and Development, Engineering Materials Development Institute, Akure, Nigeria
Department of Metallurgical and Materials Engineering, Federal University of Technology-Akure, Akure, Nigeria
Department of Research and Development, Engineering Materials Development Institute, Akure, Nigeria
- 1 Department of Research and Development, Engineering Materials Development Institute, Akure, Nigeria
- 2 Department of Metallurgical and Materials Engineering, Federal University of Technology-Akure, Akure, Nigeria
- 3 Department of Research and Development, Engineering Materials Development Institute, Akure, Nigeria
Journal of Minerals and Materials Characterization and Engineering·Volume 11 (2012)·Pages 1000–1004·Published 31 October 2012·DOI10.4236/jmmce.2012.1110102
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Abstract
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.
KeywordsSubmerged Arc WeldingFusion ZoneUn-Mixed ZoneHeat Affected Zone
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