engleski

The influence of hardening treatment on the mechanical and tribological properties of nodular cast iron

Heat treatment, and especially austempering on bainite structure, significantly expands the area of applicability of nodular cast iron. The austempered ductile iron is applied increasingly for machine components exposed to high dynamic loads. In this way steel forgings and steel castings are substituted by austempered ductile iron ensuring adequate reduction of production costs. In this paper the influence of austempering and conventional quenching and tempering treatments on mechanical and tribological properties of nodular cast iron NL 420 is examined.

nodular cast iron; austempering; conventional quenching and tempering

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