Method of determining the deterioration of heat-resistant ferritic steel parts
US4287417A · kind A · utility
1Cited by
1References
3Claims
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Key dates
| Filing date | Jan 28, 1980 |
| Grant date | Sep 1, 1981 |
| Priority date | — |
| Expiry date | Jan 28, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/2045
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of determining the degree of deterioration of a heat-resistant ferritic steel part, such as that of Cr-Mo-V steel practically applied in a region of high temperature from at least one of the crystallization factors such as the particle size, interparticle distance and crystallization density of a carbide, particularly V.sub.4 C.sub.3 crystallized out in said ferritic steel part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.