Residual stress and surface properties of stainless steel welded joints induced by ultrasonic pulsed water jet peening

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F18%3A10241330" target="_blank" >RIV/61989100:27230/18:10241330 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.measurement.2018.06.012" target="_blank" >http://dx.doi.org/10.1016/j.measurement.2018.06.012</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.measurement.2018.06.012" target="_blank" >10.1016/j.measurement.2018.06.012</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Residual stress and surface properties of stainless steel welded joints induced by ultrasonic pulsed water jet peening

Popis výsledku v původním jazyce

The residual stress and subsurface hardness of welded joints treated by peening using an ultrasonic pulsed water jet at pressures of 20-60 MPa with various traverse speeds and standoff distances were measured. The effect of the treatment was quantified by measuring the residual stress using X-ray diffraction in three regions (the welded zone, heat-affected zone, and base metal). To analyse the depth of the plastic deformation induced by the pulsating water jet, microstructural analyses and micro-hardness measurements were conducted. The surface topography of the treated samples was examined by measuring the surface roughness using a contact surface roughness profilometer. After pulsating water jet treatment, the samples showed both increased residual stress and surface roughness at pressures of 20-60 MPa. Increased subsurface hardness of the treated region was observed up to a depth of 200-250 mu m at pressures of 40 and 60 MPa, deeper than that of the sample prepared at 20 MPa. The microstructural analysis identified the involved plastic deformation phenomenon occurred during the treatment process. This method of surface treatment, where the efficiency of the jet is enhanced by the generation of pulses using an acoustic generator, showed promising results for its practical application as a post-weld treatment method

Název v anglickém jazyce

Residual stress and surface properties of stainless steel welded joints induced by ultrasonic pulsed water jet peening

Popis výsledku anglicky

The residual stress and subsurface hardness of welded joints treated by peening using an ultrasonic pulsed water jet at pressures of 20-60 MPa with various traverse speeds and standoff distances were measured. The effect of the treatment was quantified by measuring the residual stress using X-ray diffraction in three regions (the welded zone, heat-affected zone, and base metal). To analyse the depth of the plastic deformation induced by the pulsating water jet, microstructural analyses and micro-hardness measurements were conducted. The surface topography of the treated samples was examined by measuring the surface roughness using a contact surface roughness profilometer. After pulsating water jet treatment, the samples showed both increased residual stress and surface roughness at pressures of 20-60 MPa. Increased subsurface hardness of the treated region was observed up to a depth of 200-250 mu m at pressures of 40 and 60 MPa, deeper than that of the sample prepared at 20 MPa. The microstructural analysis identified the involved plastic deformation phenomenon occurred during the treatment process. This method of surface treatment, where the efficiency of the jet is enhanced by the generation of pulses using an acoustic generator, showed promising results for its practical application as a post-weld treatment method

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/LO1406" target="_blank" >LO1406: Institut čistých technologií těžby a užití energetických surovin - Projekt udržitelnosti</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Measurement

ISSN

0263-2241

e-ISSN

—

Svazek periodika

127

Číslo periodika v rámci svazku

OCT 2018

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

453-462

Kód UT WoS článku

000440449300048

EID výsledku v databázi Scopus

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