Title:
WEAR-RESISTANT STEEL AND METHOD FOR MAKING IT
Document Type and Number:
WIPO Patent Application WO/1987/005946
Kind Code:
A1
Abstract:
A wear-resistant steel containing carbon, manganese, silicon, sulphur, phosphorus, nitrogen, titanium and iron in the following ratio of the components in per cent by weight: carbon: 0.4-1.3; manganese: 3-11.5; sulphur: up to 0.05; phosphorus: up to 0.1; titanium: 0.01-0.15; nitrogen: 0.02-0.9; iron: the balance, and a method for making it which provides for saturation of the melted alloying addition with the nitrogen by treating said addition with the low-temperature plasma produced from a nitrogen-containing gas mixture at a partial pressure of the nitrogen in the latter of approximately from 0.08 to 0.3 MPa. While mixing the melts, first the melted non-alloyed steel base representing up to 0.7 of the total weight of the melt is taken and the whole of the melted alloying addition saturated with the nitrogen is added to it, after which the rest of the melted non-alloyed steel base is introduced.
Inventors:
SVIDUNOVICH NIKOLAI ALEXANDROV (SU)
PARFENOV LEONID IVANOVICH (SU)
GAROST ALEXANDR IVANOVICH (SU)
SOROKIN GENNADY ALEXEEVICH (SU)
VOLKOV VIKTOR NIKOLAEVICH (SU)
OBIEDKOV VIKTOR ALEXEEVICH (SU)
KARBANOVICH VALERY KAZIMIROVIC (SU)
VASHKEVICH VLADIMIR VYACHESLAV (SU)
VERBITSKY ALEXANDR NIKOLAEVICH (SU)
PARFENOV LEONID IVANOVICH (SU)
GAROST ALEXANDR IVANOVICH (SU)
SOROKIN GENNADY ALEXEEVICH (SU)
VOLKOV VIKTOR NIKOLAEVICH (SU)
OBIEDKOV VIKTOR ALEXEEVICH (SU)
KARBANOVICH VALERY KAZIMIROVIC (SU)
VASHKEVICH VLADIMIR VYACHESLAV (SU)
VERBITSKY ALEXANDR NIKOLAEVICH (SU)
Application Number:
PCT/SU1986/000026
Publication Date:
October 08, 1987
Filing Date:
March 26, 1986
Export Citation:
Assignee:
BRUSS TI KIROVA (SU)
International Classes:
C21C7/00; C22C38/00; C22C38/04; C22C38/14; (IPC1-7): C22C38/14; C22B9/20
Foreign References:
| SU1002394A1 | 1983-03-07 | |||
| SU322399A1 | 1971-11-30 | |||
| SU399568A1 | 1973-10-03 | |||
| SU399569A1 | 1973-10-03 |
Other References:
V. DENBOVSKY, "Plazmennaya Metallurgia", 1981, Metallurgia (Moscow), pages 194-197, 207-210.
V.I. LAKOMSKY, "Plazmenno-Dugovoi Pereplav", 1974, (Kiev), pages 76-79.
V.I. LAKOMSKY, "Plazmenno-Dugovoi Pereplav", 1974, (Kiev), pages 76-79.
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