By researching and analyzing the damage feature of line rail, the heat-treated rail with lower carbon content, 1100 MPa tensile strength and better toughness, was thought to be favorable to decrease contact fatigue damage and improve performance in the fast line of transporting both passengers and goods. Through researching the steel composition, heat-treatment structure and properties, a new carbon-containing on line heat-treated rail steel was developed, which tensile strength is 1080-1150 MPa, KIC is 45-51 MPa.m0.5, and the crack initiation rate and propagation rate is lower than that of traditional rail steel. The rails had demonstrated good anti-contact fatigue damage and better wear-resisting performance after use on a line with train speed of 160 km/h and transportation of 72000000 ton a year for a year. The rail working face contacting the wheel was bright and no contact fatigue crack was observed. The wear-resistance of this rail is better that of 1000 MPa rail.
Development and application of 1100 MPa heat-treated rail
Entwicklung und Anwendung von wärmebehandelten Schienen mit 1100 MPa Festigkeit
Titel chinesisch
Iron and Steel, Peking ; 43 , 6 ; 78-81
2008
4 Seiten, 5 Bilder, 1 Tabelle, 5 Quellen
Aufsatz (Zeitschrift)
Unbekannt
SLUB | 1988
|Online Contents | 2008
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Kraftfahrwesen | 2000
|BMW K 1100 RS gegen Kawasaki ZZ-R 1100
Kraftfahrwesen | 1994
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