複雑形状をもつオーステナイト系ステンレス鋳鋼部材へのUT適用検討
概要
Recently, an application target of the phased array ultrasonic testing (PAUT) has been extended. However, it was known that PAUT was difficult to apply to components with complex and high damping materials such as cast austenitic stainless steel (CASS). The Authors have developed shape adaptive beam forming PAUT system for complicated shape parts and comprehensive PAUT conditions analysis system for CASS. Each PAUT systems based on full matrix capture (FMC) technique. In order to enhance an applicability of each system, we have combined them. For the verification of a detectability of combined system, joint part of CASS valve and piping which have axial thermal fatigue cracks was fabricated as a target. In this paper, principles and performance verification of the system would be represented.
