Profiled rolling stock and method for manufacturing the same
US6086685A · kind A · utility
5Cited by
3References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1997 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Dec 19, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/002
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.