Effect of Isothermal Bainitic Quenching on Rail Steel Impact Strength and Wear Resistance


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Abstract

The effect of heat treatment regimes on hardness, impact strength, and wear resistance of rail steel for high-speed tracks (rail quality category R350HT) is studied. Analysis of steel properties with a different structure is compared: pearlitic, and upper and lower bainite. It is shown that the steel with bainitic structure has the best impact strength, but wear resistance is better for steel with a lower bainite structure.

About the authors

Fatih Hayati Çakir

Department of Mechanical Engineering, Eskisehir Osmangazi University

Author for correspondence.
Email: fcakir@ogu.edu.tr
Turkey, Eskisehir

Osman Nuri Çelik

Department of Mechanical Engineering, Eskisehir Osmangazi University

Email: fcakir@ogu.edu.tr
Turkey, Eskisehir

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