An ultrasonic testing method for homogeneous anisotropic materials

被引：1

作者：

Mizota, Hirohisa ^{[1
]}

Nagashima, Yoshiaki ^{[1
]}

Nakahata, Kazuyuki ^{[2
]}

机构：

[1] Hitachi Ltd, Res & Dev Grp, Tokyo, Japan

[2] Ehime Univ, Grad Sch Sci & Engn, Matsuyama, Ehime, Japan

来源：

INSIGHT | 2017年 / 59卷 / 07期

关键词：

unidirectional solidification; phased array technique; crystal growth direction; anisotropy; INSPECTION;

D O I：

10.1784/insi.2017.59.7.351

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

An ultrasonic measurement method has been developed to determine the crystal growth angle of a unidirectional solidification material by using an ultrasonic array probe. Candidate crystal growth directions of the unidirectional solidification material are derived to within an error of +/- 5 degrees by evaluating the wave height levels of echoes measured with the focal laws of each assumed crystal growth angle. Moreover, high-precision ultrasonic testing is realised based on the focal laws considered with the candidate crystal growth angle.

引用

页码：351 / 357

页数：7

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