Method and apparatus for measuring hydrogen-induced cracking
US10788461B2 · kind B2 · utility
4Cited by
7References
20Claims
0Family size
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Key dates
| Filing date | Nov 22, 2016 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Jul 6, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2626
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There are proposed a method for measuring hydrogen-induced cracking which can measure hydrogen-induced cracking initiated in an interior of a test specimen during HIC test and a measuring apparatus used in this method. When cracks initiated in an interior of a test specimen 1 immersed in a test solution 5 containing hydrogen sulfide is measured by an ultrasonic probe 2 placed in a vessel 3, the position and size of cracks initiated in the interior of the test specimen 1 are measured with the lapse of time at a state of immersing the test specimen 1 in the test solution by scanning the ultrasonic probe 2 or the test specimen 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.