Full text

Turn on search term navigation

© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

This paper presents an automated Non-Destructive Testing (NDT) system for the in-service inspection of orbital welds on tubular components operating at temperatures as high as 200 °C. The combination of two different NDT methods and respective inspection systems is here proposed to cover the detection of all potential defective weld conditions. The proposed NDT system combines ultrasounds and Eddy current techniques with dedicated approaches for dealing with high temperature conditions. Phased array ultrasound was employed, searching for volumetric defects within the weld bead volume while Eddy currents were used to look for surface and sub-surface cracks. The results from the phased array ultrasound results showed the effectiveness of the cooling mechanisms and that temperature effects on sound attenuation can be easily compensated for up to 200 °C. The Eddy current results showed almost no influence when temperatures were raised up to 300 °C.

Details

Title
Non-Destructive Inspection of High Temperature Piping Combining Ultrasound and Eddy Current Testing
Author
Santos, David 1 ; Machado, Miguel A 2   VIAFID ORCID Logo  ; Monteiro, João 3 ; Sousa, José P 1 ; Proença, Carla S 1 ; Crivellaro, Fernando S 4 ; Rosado, Luís S 5   VIAFID ORCID Logo  ; Santos, Telmo G 2   VIAFID ORCID Logo 

 ISQ—Instituto de Soldadura e Qualidade, 2740-120 Porto Salvo, Portugal 
 UNIDEMI, Department of Mechanical and Industrial Engineering, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; Laboratório Associado de Sistemas Inteligentes, LASI, 4800-058 Guimarães, Portugal 
 Bosch Termotecnologia S.A., 1800-220 Lisboa, Portugal 
 Departament of Physics, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal 
 Instituto de Telecomunicações, 1049-001 Lisbon, Portugal; Instituto Superior Técnico, Universidade de Lisboa,1049-001 Lisbon, Portugal 
First page
3348
Publication year
2023
Publication date
2023
Publisher
MDPI AG
e-ISSN
14248220
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2791700394
Copyright
© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.