Article – Metallurgical Coating to Reduce Graphite Degeneration at the Surface Zone of Compacted Graphite Iron Castings – Foseco

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Metallurgical Coating to Reduce Graphite Degeneration at the Surface Zone of Compacted Graphite Iron Castings

Ugo Nwaogu 1, Wolfram Stets 1

1 Foseco Enschede, Netherland

 

INTRODUCTION :

With tightening emission legislation for combustion engines, there is an increasing trend for the wider adoption of compacted graphite iron (CGI) for automotive components, specifically blocks – to enable higher combustion pressures and reduce overall component weight. Currently, component design in CGI is limited by the reversion or degeneration of the compacted graphite (CG), resulting in a layer of flake graphite (FG) in the rim zone of the casting…

 

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