Ultrasonic Phased Array Technique for Accurate Flaw Sizing in Dissimilar Metal Welds

Buttram, Jonathan D

Interwav,Inc

关键词: Dissimilar Metal Welds Crack Sizing Ultrasonic Phased Array Thorugh-Wall Circumferential;    Boilers;    Water Dissimilar Metal Welds Crack Sizing Ultrasonic Phased Array Thorugh-Wall Circumferential;    Accuracy;    Cooling Systems;   

DOI  :  10.2172/862411
RP-ID  :  DOE/ER/83984
RP-ID  :  FG02-04ER83984
RP-ID  :  862411

美国|英语

来源: UNT Digital Library

【 摘 要 】

Described is a manual,portable non-destructive technique to determine the through wall height of cracks present in dissimilar metal welds used in the primary coolling systems of pressure water and boiler light water reactors. Current manual methods found in industry have proven not to exhibit the sizing accuracy required by ASME inspection requirement. The technique described demonstrated an accuracy approximately three times that required to ASME Section XI, Appendix 8 qualification.