Ratto P J J, Ansaldi A F, Fierro V E, Aguera F R, Villar H N A, Sikora J

A ISIJ international, Volume 41, Pages 372-380, 2001

Abstract: Impact tests at low temperatures were carried out, aimed at comparing the response of five spheroidal graphite (SG) cast iron with different microstructures and to analyze the influence of the solidification structure size. Y blocks with two different thicknesses( 13 and 75 mm) were cast using the same industrial melt. The following matrix microstructures were obtained by applying different heat treatments: pearlitic-ferritic(as cast condition) , fully ferritic(sub-critical annealing),fully pearlitic (normalizing) and two ausferritic matrices (ADI grades 2 and 4).

Keywords: Casting, Cast Irons, Low temperature impact tests, Cast iron structures.