Surface integrity and residual stress analysis of pulsed water jet peened stainless steel surfaces

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F19%3A00504914" target="_blank" >RIV/68145535:_____/19:00504914 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0263224119304087?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0263224119304087?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.measurement.2019.04.082" target="_blank" >10.1016/j.measurement.2019.04.082</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Surface integrity and residual stress analysis of pulsed water jet peened stainless steel surfaces

Popis výsledku v původním jazyce

Enhancement of the life of the engineering components is essential from the perspective of its performance,ntherefore, it is necessary to eliminate the negative effects that attenuates the life of these components.nNumerous surface treatment methods are used at present out of which water jet peening processnhave been stated to overcome the shortcoming reported in other surface treatment methods like surfacendefects caused by the embedment of particles during shot peening, thermal effects caused by laser shocknpeening. It has been reported in studies that the technological modification of water jet technology, ultrasonicallyngenerated pulsed water jet (PWJ) can be used for the peening application but still the detailednstudy of parametric variations for the peening process is not clearly explained. The present work aims atnreporting the effect of variation of parameters: jet pressure (40 MPa to 100 MPa), traverse speed of thennozzle (5 mm/s to 25 mm/s) and standoff distance (15 mmto 31 mm) during the ultrasonically generatednPWJ peening process. The peened surface was quantified in terms of surface residual stress measurements,nmicro hardness and surface roughness measurements. The results indicate that the variationsnin the parameters shows significant changes in the surface residual stress enhancement and strengtheningnprocess. The lower pressure (40 MPa), lower traverse speed (5 mm/s) and higher standoff distancen(31 mm) showed the maximum improvement in the surface residual stress (up to 540 MPa) andnmicro-hardness (up to 570 HV). The impact of the repeated pulses causes plastic deformation on the surfacenand sub-surface layers which results into the change in the microstructures of the affected area. Thenmicrostructural examination through field emission scanning electron microscopy showed variations innthese deformations under different parametric conditions. This study can give better understanding fornthe proper selection of the peening parameters for practical applications using ultrasonically generatednpulsed water jet technology.

Název v anglickém jazyce

Surface integrity and residual stress analysis of pulsed water jet peened stainless steel surfaces

Popis výsledku anglicky

Enhancement of the life of the engineering components is essential from the perspective of its performance,ntherefore, it is necessary to eliminate the negative effects that attenuates the life of these components.nNumerous surface treatment methods are used at present out of which water jet peening processnhave been stated to overcome the shortcoming reported in other surface treatment methods like surfacendefects caused by the embedment of particles during shot peening, thermal effects caused by laser shocknpeening. It has been reported in studies that the technological modification of water jet technology, ultrasonicallyngenerated pulsed water jet (PWJ) can be used for the peening application but still the detailednstudy of parametric variations for the peening process is not clearly explained. The present work aims atnreporting the effect of variation of parameters: jet pressure (40 MPa to 100 MPa), traverse speed of thennozzle (5 mm/s to 25 mm/s) and standoff distance (15 mmto 31 mm) during the ultrasonically generatednPWJ peening process. The peened surface was quantified in terms of surface residual stress measurements,nmicro hardness and surface roughness measurements. The results indicate that the variationsnin the parameters shows significant changes in the surface residual stress enhancement and strengtheningnprocess. The lower pressure (40 MPa), lower traverse speed (5 mm/s) and higher standoff distancen(31 mm) showed the maximum improvement in the surface residual stress (up to 540 MPa) andnmicro-hardness (up to 570 HV). The impact of the repeated pulses causes plastic deformation on the surfacenand sub-surface layers which results into the change in the microstructures of the affected area. Thenmicrostructural examination through field emission scanning electron microscopy showed variations innthese deformations under different parametric conditions. This study can give better understanding fornthe proper selection of the peening parameters for practical applications using ultrasonically generatednpulsed water jet technology.

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

2019

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

143

Číslo periodika v rámci svazku

September 2019

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

81-92

Kód UT WoS článku

000470062200009

EID výsledku v databázi Scopus

2-s2.0-85065518559