Profiled rolling stock and method for manufacturing the same

Details Profiled rolling stock and method for manufacturing the same Profiled rolling stock and method for manufacturing the same

1997-12-19

2000-07-11

Yee, Deborah

Metal treatment

Stock

Ferrous

148334, 148335, 148581, 148637, C21D 904, C22C 3802, C22C 3806

Patent

active

060866853

ABSTRACT:
A profiled rolling stock, in particular a running rail or railroad track made of an iron-based alloy, is provided. The alloy contains silicon plus aluminum below 0.99 wt. % of the rolling stock. A structure in the cross section is formed, at least partially, by isothermic structural transformation due to accelerated cooling from the austenite region of the alloy to a lower intermediary phase temperature and holding. Transformation preferably occurs between the martensite transformation point of the alloy a temperature 250.degree. C. over the martensite transformation point Ms.

REFERENCES:
patent: 5209792 (1993-05-01), Besch et al.
patent: 5382307 (1995-01-01), Kageyama et al.
patent: 5759299 (1998-06-01), Yokoyama et al.

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