TRAIN WHEEL

A railway wheel in which formation of a quenched layer can be suppressed in the production process is provided. The railway wheel according to the present embodiment has a chemical composition consisting of, in mass%, C: 0.80 to 1.15%, Si: 1.00% or less, Mn: 0.10 to 1.20%, P: 0.050% or less, S: 0.03...

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Bibliographische Detailangaben
Hauptverfasser:	MAEJIMA, Taketo, KUBOTA, Manabu
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MEASURING METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A railway wheel in which formation of a quenched layer can be suppressed in the production process is provided. The railway wheel according to the present embodiment has a chemical composition consisting of, in mass%, C: 0.80 to 1.15%, Si: 1.00% or less, Mn: 0.10 to 1.20%, P: 0.050% or less, S: 0.030% or less, Al: 0.005 to 0.190%, N: 0.0200% or less, Nb: 0.005 to 0.050%, Cr: 0 to 0.25%, and V: 0 to 0.12%, with the balance being Fe and impurities. In the microstructure of a rim part of the railway wheel, an area fraction of pro-eutectoid cementite is 0.1 to 1.5% and an area fraction of pearlite is 95.0% or more.