CHAPTER 11: METAL ALLOYS APPLICATIONS AND PROCESSING

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Ductile iron: small addition (0.05 wt..%) of Mg to gray iron changes the flake C microstructure to spheroidal that increases (by factor ~20) steel ductility 4. Malleable iron: traditional form of cast iron with reasonable ductility. First cast to white iron and then heat-treated to produce nodular graphite precipitates.

  Iron, Graphite, Spheroidal, Nodular, Nodular graphite