External Factors Influence on Defects Detection by Scanning Contact Potentiometry

Scanning contact potentiometry (SCP) method was used to detect structural inhomogeneities in a welded joint under the application of heat and constant electric current. For this purpose, a special sample was prepared, welded by manual arc welding from two halves of X8CrNiTi18-10 (Chromium-Nickel-tit...

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Main Authors: A. I. Alwaheba, V. I. Surin
Format: Article
Language:English
Published: Galati University Press 2024-12-01
Series:Annals of "Dunarea de Jos" University of Galati, Fascicle XII, Welding Equipment and Technology
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Online Access:https://www.gup.ugal.ro/ugaljournals/index.php/awet/article/view/7101
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author A. I. Alwaheba
V. I. Surin
author_facet A. I. Alwaheba
V. I. Surin
author_sort A. I. Alwaheba
collection DOAJ
description Scanning contact potentiometry (SCP) method was used to detect structural inhomogeneities in a welded joint under the application of heat and constant electric current. For this purpose, a special sample was prepared, welded by manual arc welding from two halves of X8CrNiTi18-10 (Chromium-Nickel-titanium stainless Steel) austenitic steel, each with dimensions of 200×110×13.5mm. After welding, welded sample was inspected using X-ray radiography. The sample was stored for five months at room temperature, and the sample surface was scanned using different scanning speed ranging from 0.36 to 1.8 mm/sec. It was found that when scanning speed was increased, the signal values remained the same. In another experiment, a constant electric current was passed through the sample from 0.01 to 0.1A. Applying current led to the excitation of weak structural inhomogeneities from the welding joint butt, although it was machined. While heat led to an increase in diagnostic signal amplitude.
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publishDate 2024-12-01
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series Annals of "Dunarea de Jos" University of Galati, Fascicle XII, Welding Equipment and Technology
spelling doaj-art-db78dc543bf443d08d538dfdd203f5e32025-07-08T13:13:42ZengGalati University PressAnnals of "Dunarea de Jos" University of Galati, Fascicle XII, Welding Equipment and Technology1221-46392668-61632024-12-013516166https://doi.org/10.35219/awet.2024.05External Factors Influence on Defects Detection by Scanning Contact PotentiometryA. I. Alwaheba0V. I. Surin1Jordan Atomic Energy Commission, Amman, JordanNational Research Nuclear University MEPhI, Moscow, RussiaScanning contact potentiometry (SCP) method was used to detect structural inhomogeneities in a welded joint under the application of heat and constant electric current. For this purpose, a special sample was prepared, welded by manual arc welding from two halves of X8CrNiTi18-10 (Chromium-Nickel-titanium stainless Steel) austenitic steel, each with dimensions of 200×110×13.5mm. After welding, welded sample was inspected using X-ray radiography. The sample was stored for five months at room temperature, and the sample surface was scanned using different scanning speed ranging from 0.36 to 1.8 mm/sec. It was found that when scanning speed was increased, the signal values remained the same. In another experiment, a constant electric current was passed through the sample from 0.01 to 0.1A. Applying current led to the excitation of weak structural inhomogeneities from the welding joint butt, although it was machined. While heat led to an increase in diagnostic signal amplitude.https://www.gup.ugal.ro/ugaljournals/index.php/awet/article/view/7101scanning contact potentiometrywelding jointsnon-destructive testingchromium-nickel-titanium stainless steel
spellingShingle A. I. Alwaheba
V. I. Surin
External Factors Influence on Defects Detection by Scanning Contact Potentiometry
Annals of "Dunarea de Jos" University of Galati, Fascicle XII, Welding Equipment and Technology
scanning contact potentiometry
welding joints
non-destructive testing
chromium-nickel-titanium stainless steel
title External Factors Influence on Defects Detection by Scanning Contact Potentiometry
title_full External Factors Influence on Defects Detection by Scanning Contact Potentiometry
title_fullStr External Factors Influence on Defects Detection by Scanning Contact Potentiometry
title_full_unstemmed External Factors Influence on Defects Detection by Scanning Contact Potentiometry
title_short External Factors Influence on Defects Detection by Scanning Contact Potentiometry
title_sort external factors influence on defects detection by scanning contact potentiometry
topic scanning contact potentiometry
welding joints
non-destructive testing
chromium-nickel-titanium stainless steel
url https://www.gup.ugal.ro/ugaljournals/index.php/awet/article/view/7101
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