Characterization of residual stresses distribution and real structure in thick welded sheets by X-ray diffraction and barkhausen noise analysis after metal active gas and laser welding

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F15%3A00240728" target="_blank" >RIV/68407700:21340/15:00240728 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Characterization of residual stresses distribution and real structure in thick welded sheets by X-ray diffraction and barkhausen noise analysis after metal active gas and laser welding

Popis výsledku v původním jazyce

Generally the manufacturing processes of machine component introduce residual stresses (RS) that have an essential influence on their behaviour during service life. The purpose of this study is to evaluate the residual stress distribution of specimens joined by using high power diode laser and metal active gas (MAG) welding. Non-destructive methods for detection and measurement of RS have been increasingly used in the last few years. The paper outlines the capability of Barkhausen noise analysis (BNA) for evaluation of real structure changes and residual stresses on cross-section of welds due to welding of ferromagnetic plates compared with X-ray diffraction (XRD), that can be used for quantitative analysis of macro and micro level RS separately. However, it is very difficult to use XRD in manufacturing. The principal advantages of BNA over XRD as a tool for RS analysis and real structure characterisation are that it is mobile, faster with more facile carrying out and hence BNA is frequently used for continuous monitoring of RS in industrial processes.

Název v anglickém jazyce

Characterization of residual stresses distribution and real structure in thick welded sheets by X-ray diffraction and barkhausen noise analysis after metal active gas and laser welding

Popis výsledku anglicky

Generally the manufacturing processes of machine component introduce residual stresses (RS) that have an essential influence on their behaviour during service life. The purpose of this study is to evaluate the residual stress distribution of specimens joined by using high power diode laser and metal active gas (MAG) welding. Non-destructive methods for detection and measurement of RS have been increasingly used in the last few years. The paper outlines the capability of Barkhausen noise analysis (BNA) for evaluation of real structure changes and residual stresses on cross-section of welds due to welding of ferromagnetic plates compared with X-ray diffraction (XRD), that can be used for quantitative analysis of macro and micro level RS separately. However, it is very difficult to use XRD in manufacturing. The principal advantages of BNA over XRD as a tool for RS analysis and real structure characterisation are that it is mobile, faster with more facile carrying out and hence BNA is frequently used for continuous monitoring of RS in industrial processes.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/TA02011004" target="_blank" >TA02011004: Aplikace laserových technologií v dopravní technice</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

Experimental Stress Analysis 2015

ISBN

978-80-01-05734-6

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

177-182

Název nakladatele

České vysoké učení technické v Praze, Fakulta stavební

Místo vydání

Praha

Místo konání akce

Český Krumlov

Datum konání akce

1. 6. 2015

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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