Method of estimating mechanical hardness of steel from its magnetic properties
US5679887A · kind A · utility
2Cited by
5References
7Claims
0Family size
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Key dates
| Filing date | Jun 19, 1996 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Jun 19, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/123
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of estimating mechanical hardness of a steel by the measurement of a plurality of magnetic parameters of the steel, comprises the steps of estimating for each parameter one or more probable hardness ranges by reference to a stored set of hardness ranges and associated parameters and combining these estimates to provide an estimate of the hardness range. Preferably three parameters are measured and these may be coercivity, power loss and permeability. These parameters may be measured simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.