DETERMINATION OF THERMAL CONDUCTIVITY OF SELECTED TYPES OF DUCTILE IRON (SPHEROIDAL GRAPHITE/CAST IRON) BY MEANS OF THERMAL DIFFUSIVITY MEASUREMENTS WITH LASER-FLASH METHOD

This paper presents the results of measurements of thermal conductivity coefficient as a function of temperature for two species of spheroidal cast iron by using one of the most modern experimental sets LFA 427 (La...

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Determination of the optimal austempering parameters of Ni-Cu (Mo,Mn) ductile iron based on CCT and TTT diagrams

In the research, a complex procedure was performed to determine the optimal parameters of thermal treatment of ductile iron with Ni, Cu, Mo and Mn additions which underwent austempering in order to obtain the ADI cast iron. Based on the constructe...

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Optimization of Ni and Cu additions in ADI cast iron in respect of cast cooling rate

The study analyzes the effect of Ni and Cu additions on the mechanical properties of ADI cast iron in casts with different wall thickness values. The applied experiment plan included the use of combinations of the Ni addition in the amount of 0.5%...

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Influence of two-step austempering process on mechanical properties and wear resistance of carbidic austempered ductile iron (CADI)

CADI (Carbidic ADI) - ausferritic ductile iron containing carbides - is a relatively new engineering material which exhibits excellent wear resistance and adequate impact strength. In this work the influence of two-step austempering process on sel...

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