%0 Journal Article
%T Phase transformations of under-cooled austenite of new bainitic materials for scissors crossovers
%A J. Pacyna
%A T. Skrzypek
%J Archives of Foundry Engineering
%D 2008
%I De Gruyter Open
%X The paper contains CCT diagrams presenting a transformation kinetics of under-cooled austenite from two new bainitic cast steels which the scissors crossovers for heavy-duty railway tracks (min. 230kN/axle) at the speed up to 200 km/h are made of. The cooling ranges of UIC60 type railway tracks plot on the CCT diagrams indicate that there is a 100% bainitic structure in the scissors crossovers made of these cast steels as well, but mainly it would be a favourable for cracking resistance lower bainite. The achievable hardness of scissors crossovers made of new materials make it possible to use high¨Ctemperature tempering resulting in obtaining of good crack resistance. However one should provide a good quality of castings made.
%K Innovative foundry technologies and materials
%K Cast steel
%K Bainite
%K Scissors crossovers
%K CCT diagrams
%U http://www.afe.polsl.pl/index.php/pl/423/phase-transformations-of-under-cooled-austenite-of-new-bainitic-materials-for-scissors-crossovers.pdf