Effect Of Carbon Content on The Impact Energy of Ductile Austenitic Cast Iron

Abstract

In the present investigation, the effect of varying the carbon content on the impact energy of ductile cast iron was studied. Three groups of ductile austenitic cast iron (A), (B) and (C) were prepared for Charpy impact tests. The carbon equivalent percent (% CE) for group (A) ranged from 3.51 to 5.04 and the variable element was carbon, whereas the % CE for group (B) is ranged from 3.86 to 4.64 and the variable element was silicon, and the % CE for group (C) is ranged from 3.79 to 4.80 and the variable element was nickel. Results show that there is an inverse proportional relation between the absorbed impact energy and the % CE if silicon or nickel are used as variable elements, while this relation remains constant when using carbon as variable element to control the value of % CE.