Rail

Provided is a rail that is effective in improving wear resistance and rolling contact fatigue (RCF) resistance. The rail has a metallic structure including a pearlitic structure and a structure other than the pearlitic structure in a surface layer from a surface of a rail head to a depth of at least...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Honjo, Minoru, Takemasa, Mineyasu
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMISTRY CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES FERROUS OR NON-FERROUS ALLOYS FIXED CONSTRUCTIONS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MACHINES FOR MAKING RAILWAYS OF ALL KINDS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERMANENT WAY PERMANENT-WAY TOOLS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	Provided is a rail that is effective in improving wear resistance and rolling contact fatigue (RCF) resistance. The rail has a metallic structure including a pearlitic structure and a structure other than the pearlitic structure in a surface layer from a surface of a rail head to a depth of at least 0.5 mm, where the pearlitic structure has Vickers hardness of 420 HV or more and 520 HV or less, and the structure other than the pearlitic structure has Vickers hardness of 350 HV or more and 420 HV or less.