engleski

Utjecaj bakra i parametara toplinske obrade na mehanička svojstva izotermički poboljšanog žilavog lijeva.

In this review papper insight is given how both copper and heat treatment parameters affect mechanical properties of austempered ductile iron (ADI). It has been shown that both copper and other alloying elements such as Ni and Mo affect the mechanical properties of ADI. Also, it has been shown that the strenght, hardness, elongation and fracture toughnes strongly depend on amount of ausferritic ferrite and stable, high carbon enriched retained austenite. The results shown confirm that alloying with Co + Ni produce ductile grades of ADI, while alloying with Cu produce grades of higher strength. The standard processing window depends on the austempering parameters and alloying elements, as well as standard used to produce ADI.

žilavi lijev; izotermički žilavi lijev; izotermičko poboljšavanje; mikrostruktura; bakar; mehanička svojstva

nije evidentirano