This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Polytechnic University of Bucharest , Bucharest , Romania
University of Bucharest , Bucharest , Romania
University of Bucharest , Bucharest , Romania
University of Bucharest , Bucharest , Romania
University of Bucharest , Bucharest , Romania
There is a significant increase in industrial applications of ferritic high-Si ductile cast irons (3 - 6%Si), such as the automotive and maritime industries, wind power technology and mechanical engineering. Ferritic high-Si ductile cast irons replace un-stable mixed ferrite-pearlite matrix, with a unique combination of high elongation, strength and hardness (ideal for automotive drive train components) and resistance to oxidation and corrosion at high temperatures (automotive exhaust and turbocharger systems). The present paper evaluates the defining mechanical properties and the peculiar structural characteristics of Si-solid solution strengthened ferritic spheroidal graphite cast irons compared with ferritic to pearlitic spheroidal graphite conventional (less than 3%Si) cast irons.The state-of-the art as the actual knowledge on the structure characteristics and possible solutions to improve the graphite particles parameters in these cast irons, affected by Si-alloying, are presented, with focus on the proper experiments.
castings, ductile cast iron, Si-alloying, mechanical properties, structure, graphite shape factors, graphite nodularity, inoculation
The statements, opinions and data contained in the journal are solely those of the individual authors and contributors and not of the publisher and the editor(s). We stay neutral with regard to jurisdictional claims in published maps and institutional affiliations.
