Phase transformations of under-cooled austenite of new bainitic materials for scissors crossovers

• Autorzy: Pacyna J. , Skrzypek T.
• Języki publikacji: EN

Abstrakty

EN

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-temperature tempering resulting in obtaining of good crack resistance. However one should provide a good quality of castings made.

Słowa kluczowe

EN

innovative foundry technologies; innovative foundry materials

PL

innowacyjne materiały odlewnicze; innowacyjne technologie odlewnicze; staliwo; bainit

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2008
• Tom: Vol. 8, iss. 2
• Strony: 111--114
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Pacyna J.

autor

Skrzypek T.

• Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, ul. Mickiewicza 30, 30-059 Kraków,

Bibliografia

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