Effect of pressure of pulsating water jet moving along stair trajectory on erosion depth, surface morphology and microhardness

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F20%3A00523902" target="_blank" >RIV/68081723:_____/20:00523902 - isvavai.cz</a>

Alternative codes found

RIV/68145535:_____/20:00523902 RIV/60460709:41310/20:81804 RIV/44555601:13420/20:43895965

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0043164819314462?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0043164819314462?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.wear.2020.203278" target="_blank" >10.1016/j.wear.2020.203278</a>

Result language

angličtina

Original language name

Effect of pressure of pulsating water jet moving along stair trajectory on erosion depth, surface morphology and microhardness

Original language description

The objective of the study is to investigate the erosion effects of periodic water clusters interacting with flat AISI 304 surface to evaluate erosion regimes, surface morphology and variation in the subsurface microhardnessnbelow the disintegrated grooves. Stairs trajectory within the standoff distance 5–101 mm with step height 2 mm and length 20 mm was used. The pulsating water jet was changed by varying the supply pressure of the liquid from 40 MPa–100 MPa, at a traverse speed of 5 mm/s which is equivalent to constant impingement distribution of 4000 impingements per mm. Morphology of the PWJ defines different erosion regimes based on specific value of supply pressure and standoff distance. Increasing of supply pressure shifts prevalence of both impact pressure and stagnation pressure at higher standoff distances leading to the delay in formation of incubation, acceleration, culmination, depletion, and termination regime. Impinged surface features such as micro-pits, craters, upheaved surface and isolated voids near the periphery of the trace were observed along with PWJ footprint. The values of the micro-hardness showed strengthening of material subsurface at selected standoff distances. At certain standoff distance effect of supply pressure is inverse to micro-hardness values. Determination of studied technological parameters can be used for effective surface peening operation at v > 5 mm and surface activation of the metals. Results opens a new avenue for determination of erosion resistance of material.

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/GA19-00408S" target="_blank" >GA19-00408S: Material integrity and structure at the early stages during pulsating liquid jet interaction</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

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

Name of the periodical

Wear

ISSN

0043-1648

e-ISSN

—

Volume of the periodical

452

Issue of the periodical within the volume

July 2020

Country of publishing house

CH - SWITZERLAND

Number of pages

16

Pages from-to

203278

UT code for WoS article

000539275900005

EID of the result in the Scopus database

2-s2.0-85083324574