Crack detection and monitoring of their growth in critical parts of steam pipeline by electric potential drop method

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F25%3AN0000032" target="_blank" >RIV/26722445:_____/25:N0000032 - isvavai.cz</a>

Výsledek na webu

<a href="https://journalmt.com/artkey/mft-202504-0001_crack-detection-and-monitoring-of-their-growth-in-critical-parts-of-steam-pipeline-by-electric-potential-drop-m.php" target="_blank" >https://journalmt.com/artkey/mft-202504-0001_crack-detection-and-monitoring-of-their-growth-in-critical-parts-of-steam-pipeline-by-electric-potential-drop-m.php</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21062/mft.2025.046" target="_blank" >10.21062/mft.2025.046</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Crack detection and monitoring of their growth in critical parts of steam pipeline by electric potential drop method

Popis výsledku v původním jazyce

An innovative way of using DCPD (Direct Current Potential Drop) method for off-line and online monitoring of critical parts of energy equipment in operation is presented. There are only a few NDT methods that allow detection and monitoring of defect growth in components at high temperatures and pressures. Monitoring of steam pipes and critical pipeline components in operation has been carried out for several years with different results. a relatively new way of using the DCPD method outside the laboratory is described. The carried-out tests were intended to resemble operational loads as much as possible. Therefore, the tests were performed at a temperature of 20 °C and at an increased temperature of 550 °C. By gradually deepening the groove (slot) simulating the crack type defect in predefined steps, the growth of the defect was simulated up to the full wall thickness of the test sample. The primary evaluation was carried out from the absolute and relative values of measured resistance. The disadvantage of these values is their dependence on the temperature of the monitored area of the test sample and on possibly interfering DC voltages.

Název v anglickém jazyce

Crack detection and monitoring of their growth in critical parts of steam pipeline by electric potential drop method

Popis výsledku anglicky

An innovative way of using DCPD (Direct Current Potential Drop) method for off-line and online monitoring of critical parts of energy equipment in operation is presented. There are only a few NDT methods that allow detection and monitoring of defect growth in components at high temperatures and pressures. Monitoring of steam pipes and critical pipeline components in operation has been carried out for several years with different results. a relatively new way of using the DCPD method outside the laboratory is described. The carried-out tests were intended to resemble operational loads as much as possible. Therefore, the tests were performed at a temperature of 20 °C and at an increased temperature of 550 °C. By gradually deepening the groove (slot) simulating the crack type defect in predefined steps, the growth of the defect was simulated up to the full wall thickness of the test sample. The primary evaluation was carried out from the absolute and relative values of measured resistance. The disadvantage of these values is their dependence on the temperature of the monitored area of the test sample and on possibly interfering DC voltages.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Manufacturing Technology

ISSN

1213-2489

e-ISSN

2787-9402

Svazek periodika

25

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

569-574

Kód UT WoS článku

001605607700014

EID výsledku v databázi Scopus

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