Structure–phase state of the surface layers in rails subjected to differential hardening |
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| Authors: | V E Gromov A M Glezer K V Morozov Yu F Ivanov K V Volkov |
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| Affiliation: | 1.Siberian State Industrial University,Novokuznetsk,Russia;2.Bardin Central Research Institute of Ferrous Metallurgy TsNIICHERMET,Moscow,Russia;3.Joint Western-Siberian Metallurgical Works OAO EVRAZ,Novokuznetsk,Russia;4.Institute of High Current Elecronics, Siberian Branch,Russian Academy of Sciences,Tomsk,Russia;5.National Research Tomsk Polytechnic University,Tomsk,Russia |
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| Abstract: | A layer-by-layer analysis of the structures, the phase compositions, and the defect substructures of differentially hardened rails has been carried by optical and transmission electron microscopy. It is found that the material volume of the rail head fillet is cooled faster than the volume located along the central axis. |
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