Fe-base austenitic steel having single crystalline austenitic phase, method for producing of same and usage of same
US5203932A · kind A · utility
45Cited by
3References
13Claims
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Key dates
| Filing date | Mar 14, 1991 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Mar 14, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An austenitic steel comprising Ni of 9-30%, Cr of 10-23%, and Fe of at least 45%, is characterized in comprising enough Cr and Ni to form whole austenitic structure in the equilibrium diagram at 700.degree. C., having austenitic phase at room temperature, and the austenitic phase is a single crystal, and has superior resistance against stress. The austenitic steel preferably comprises C.ltoreq.0.1%, Si.ltoreq.1%, Mn.ltoreq.2%, Ni 9-15%, Cr 16-18.5%, and at least one of elements selected from the group of Mo 1-3%, Ti 0.05-1%, and Nb 0.1-1.5%. The alloy is useful as a material for members of a reactor core of a nuclear reactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.