Erosion development in AISI 316L stainless steel under pulsating water jet treatment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F24%3APU155944" target="_blank" >RIV/00216305:26210/24:PU155944 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081723:_____/24:00603916 RIV/68145535:_____/24:00603916 RIV/61989100:27230/24:10255788

Výsledek na webu

<a href="https://doi.org/10.1016/j.jestch.2024.101630" target="_blank" >https://doi.org/10.1016/j.jestch.2024.101630</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jestch.2024.101630" target="_blank" >10.1016/j.jestch.2024.101630</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Erosion development in AISI 316L stainless steel under pulsating water jet treatment

Popis výsledku v původním jazyce

Erosion of solids by liquid droplets is a phenomenon which is a compromise between mechanical properties of the material and droplet hydrodynamic parameters. While a number of studies deal with the deformation of drops, the deformation evolution inside the material has not yet been revealed, mainly from the point of view of the time action of the impinging drops The mechanical response of AISI 316L was investigated under gradually increasing numbers of impingements of liquid droplets, with a droplet volume of Vd approximately equal to 0.9 mm3, generated by an ultrasonic pulsating water jet with the frequency f = 40 kHz from 1 to 20 s. The surface roughness and the wear rates were determined using a laser profilometer. The cross-section of the selected samples was subjected to microhardness measurement with a load of 0.150 N in a 2D grid, which included the entire perimeter of the deformed area. The minimal microhardness measurement grid under the groove had dimensions of 15 x 15 indents, equal to an area of approximately 450 x 600 mu m. A maximum hardness increase was observed at the lowest measured depth of 30 mu m. An increase in hardness was observed at 300 mu m below the surface. The hardening in the deeper subsurface area was most likely caused by shear stress. This shows the high degree of similitude between the solid and liquid droplet impingements. The results indicate that the currently accepted theory on the development of erosion over time has shortcomings, as demonstrated in this work by the ratio between the utilised droplet diameter and the grain size of the material.

Název v anglickém jazyce

Erosion development in AISI 316L stainless steel under pulsating water jet treatment

Popis výsledku anglicky

Erosion of solids by liquid droplets is a phenomenon which is a compromise between mechanical properties of the material and droplet hydrodynamic parameters. While a number of studies deal with the deformation of drops, the deformation evolution inside the material has not yet been revealed, mainly from the point of view of the time action of the impinging drops The mechanical response of AISI 316L was investigated under gradually increasing numbers of impingements of liquid droplets, with a droplet volume of Vd approximately equal to 0.9 mm3, generated by an ultrasonic pulsating water jet with the frequency f = 40 kHz from 1 to 20 s. The surface roughness and the wear rates were determined using a laser profilometer. The cross-section of the selected samples was subjected to microhardness measurement with a load of 0.150 N in a 2D grid, which included the entire perimeter of the deformed area. The minimal microhardness measurement grid under the groove had dimensions of 15 x 15 indents, equal to an area of approximately 450 x 600 mu m. A maximum hardness increase was observed at the lowest measured depth of 30 mu m. An increase in hardness was observed at 300 mu m below the surface. The hardening in the deeper subsurface area was most likely caused by shear stress. This shows the high degree of similitude between the solid and liquid droplet impingements. The results indicate that the currently accepted theory on the development of erosion over time has shortcomings, as demonstrated in this work by the ratio between the utilised droplet diameter and the grain size of the material.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Engineering Science and Technology, an International Journal

ISSN

2215-0986

e-ISSN

—

Svazek periodika

50

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

TR - Turecká republika

Počet stran výsledku

14

Strana od-do

1-14

Kód UT WoS článku

001175383400001

EID výsledku v databázi Scopus

2-s2.0-85183488137