Abstract

Test of elaboration protocols for obtaining highly Co- or Ni -alloyed spheroidal cast irons from an industrial SG cast iron. Part E: Synthesis of all results and analysis of the Ni and Co contents on microstructures and properties

Author(s): Kamel Meridja, Patrice Berthod, Elodie Conrath

In this final paper one summarized all the obtained results concerning the “xM(1-x)FGS” cast irons (M=Ni, Co or pure Fe, x=0.25, 0.50 and 0.75), issued from the previous articles of this series.Microstructures (graphite, matrix) and mechanical properties (hardness, yield strength and hardening in compression) are gathered to be analysed versus the nature of theMelement at constant M content and versus the M content at constant M nature. The most established laws concernmicrostructure. First interpretations are given about the effects of Ni and Co on the graphite morphology and on the matrix nature. Outlooks to deepen the understanding and enriching this knowledge are proposed.


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