To provide an ultrasonic inspection method which simply and accurately measures a thickness in the case in which a crystal grain constituting a metal solidification structure such as a unidirectional solidification material cast product has statistical variation.
Two ultrasonic probes 102B1 and 102B2 for transmission and reception face to each other in a direction parallel to a crystal growth direction, and make longitudinal ultrasonic waves propagate in an oblique direction with respect to a specimen 101. This makes ultrasonic waves 104" and 104B" incident on the specimen 101 composed of a crystal structure having acoustic anisotropy to measure the thickness of the specimen based on the acoustic velocity and the propagation time of the ultrasonic waves propagating in the specimen.
BABA JUNJI
TAKESUTE YOSHINORI
| JPH09304363A | 1997-11-28 | |||
| JPH08193984A | 1996-07-30 | |||
| JPH02296147A | 1990-12-06 | |||
| JPS63195564A | 1988-08-12 | |||
| JPS57173750A | 1982-10-26 | |||
| JPS5515018A | 1980-02-01 | |||
| JPS545786A | 1979-01-17 | |||
| JPS51140779A | 1976-12-03 | |||
| JPS5928613A | 1984-02-15 | |||
| JP2004132850A | 2004-04-30 | |||
| JP2000338092A | 2000-12-08 | |||
| JP4686648B1 | 2011-05-25 | |||
| JP2012053026A | 2012-03-15 |
Inoki Yuichi
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