Wear resistant rails having capability of preventing propagation

Details Wear resistant rails having capability of preventing propagation Wear resistant rails having capability of preventing propagation

1986-10-15

1988-08-30

Yee, Deborah

Metal treatment

Barrier layer stock material, p-n type

148334, 148335, 148336, 148320, 148902, 238150, C22C 3802, C22C 3804

Patent

active

047674750

ABSTRACT:
A wear resistance rail which comprises 0.50 to 0.85 wt. % of C, 0.10 to 1.0 wt. % of Si, 0.50 to 1.50 wt. % of Mn, less than 0.035 wt. % of P, less than 0.035 wt. % of S, less than 0.050 wt. % of Al, and the balance of iron and impurities. The web has a high toughness tempered bainite structure, tempered martensite structure or a tempered mixed structure of bainite and martensite and the head rail has high wear resistance which prevents unstable destructive cracks from propagating. The rail can further contain one or more of 0.05 to 1.50 wt. % of Cr, 0.05 to 0.20 wt. % of Mo, 0.03 to 0.10 wt. % of V, 0.10 to 1.00 wt. % of Ni, and 0.005 to 0.050 wt. % of Nb.

REFERENCES:
patent: 4575397 (1986-03-01), Heller

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