超音波フェーズドアレイ法による 一方向凝固材検査技術の開発
英字タイトル:
Development of Ultrasonic Phased Array Testing Method for Unidirectional Solidification Materials
著者:
溝田 裕久 Hirohisa MIZOTA 永島 良昭 Yoshiaki NAGASHIMA 中畑 和之 Kazuyuki NAKAHATA
発刊日:
公開日:
AnisotropyPhased arrayUltrasonic TestingUnidirectional Solidification Materials
Development of Ultrasonic Phased Array Testing Method for Unidirectional Solidification Materials
著者:
溝田 裕久 Hirohisa MIZOTA 永島 良昭 Yoshiaki NAGASHIMA 中畑 和之 Kazuyuki NAKAHATA
発刊日:
公開日:
カテゴリ: 第14回
キーワードタグ:AnisotropyPhased arrayUltrasonic TestingUnidirectional Solidification Materials
概要
An ultrasonic measurement method has been developed to determine the crystal growth angle of a unidirectional solidification material by using an ultrasonic array probe. The crystal growth direction of a unidirectional solidified nickel based superalloy are derived within an error of ±5 degrees by evaluating wave height levels of echoes measured with focal laws of each assumed crystal growth angle. Moreover, high precision ultrasonic testing is realized based on the focal laws considering the acoustic anisotropy.
