28-10-2014, 12:28 PM
Abstracts: Spheroidal Graphite (SG) cast iron is defined as a high carbon containing, iron based alloy in which the graphite is present in compact, spherical shapes rather than in the shape of flakes. It is also known as nodular cast iron or ductile cast iron. Heat treatment is a valuable & versatile tool for extending both the consistency and range of properties of ductile iron castings beyond the limits of those produced in the as cast condition. The most important heat treatments are:- ? Annealing ? Normalizing ? Hardening ? Tempering The principal objective of the project is to carry out the heat treatment of SG cast iron and then to compare the mechanical properties by different test. Keywords:- S.G. cast iron, Heat treatment, Hardness test, tensile test.