Abstract About My MSc. Thesis:

  " Cooling Behaviour and Properties of Grey Cast-Iron "
 

The aim of the present work is to study the cooling behaviour of grey cast iron by using data acquisition and computer aided measurement. The relationship between structure and phases formed during solidification and the cooling and solidification rates are studied. The  relationship between structure and  mechanical properties is also studied.

Cast iron with a carbon equivalence of 3.92% and different thicknesses was cast into plate sand cylindrical shape to obtain different cooling and solidification rates. Casting slowly cooled in the crucible, was also made to achieve close to equilibrium conditions.

The cooling curves recorded were analyzed for as-cast specimens and for specimens which were heated to a temperature above solid state transformation (1118K) and then quenched.

Microstructure examinations were made to determine graphite types, size, and volume fraction. Other phases as pearlite, ferrite, and cementite were also examined.

Some mechanical properties, namely hardness and tensile properties were measured. Correlation’s between there properties and the cooling and microstructures parameters are presented in this thesis.