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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20301 - Mechanical engineering

Project

<a href="/en/project/LO1406" target="_blank" >LO1406: Institute of clean technologies for mining and utilization of raw materials for energy use -Sustainability program</a><br>

Continuities

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

Publication year

2019

Confidentiality

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

Name of the periodical

Measurement

ISSN

0263-2241

e-ISSN

—

Volume of the periodical

143

Issue of the periodical within the volume

September 2019

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

81-92

UT code for WoS article

000470062200009

EID of the result in the Scopus database

2-s2.0-85065518559