Invention Grant
- Patent Title: Railway wheels resistant to martensite transformation
- Patent Title (中): 铁路车轮耐马氏体转型
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Application No.: US09621504Application Date: 2000-07-21
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Publication No.: US06387191B1Publication Date: 2002-05-14
- Inventor: Daniel Hunter Stone , Kevin James Sawley
- Applicant: Daniel Hunter Stone , Kevin James Sawley
- Main IPC: C22C3802
- IPC: C22C3802

Abstract:
Steels having a pearlitic structure and containing 0.60 to 1.0 weight percent carbon, 1.1 to 3.0 weight percent silicon, 0.45 to 0.85 weight percent manganese, less than 0.050 weight percent sulfur and less than 0.050 weight percent phosphorus, with the remainder of said steel being iron and incidental impurities, can be used to make railway, wheels that are resistant to martensite transformations and, hence, spalling. The addition of 0.50 to 1.0 weight percent chromium to such steels further improves their resistance to spalling.
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