Plastic Deformation and Modification of Surface Characteristics in Nano and Micro Levels and Enhancement of Electric Field of FCC Materials Using Cavitaion Phenomenon
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Tartalom: http://real.mtak.hu/41369/
Archívum: MTA Könyvtár
Gyűjtemény: Status = Published



Type = Article
Cím:
Plastic Deformation and Modification of Surface Characteristics in Nano and Micro Levels and Enhancement of Electric Field of FCC Materials Using Cavitaion Phenomenon
Létrehozó:
Hutli, Ezddin
Bonyar, Attila
Oszetzky, Dániel
Nedeljkovic, Milos
Kiadó:
Elsevier
Dátum:
2015-10-21
Téma:
T2 Technology (General) / műszaki tudományok általában
TJ Mechanical engineering and machinery / gépészmérnöki tudományok
TK Electrical engineering. Electronics Nuclear engineering / elektrotechnika, elektronika, atomtechnika
Tartalmi leírás:
The aim of this paper is to
demonstrate and
establish a possible application of the cavitation
phenomenon as an efficient method to modify surface properties. Three FCC
(Face Centered C
ubic)
materials were subjected to high
s
peed
submerged cavitating jets under certain working conditions,
for time periods between 15 and
1,800 s. The force generated by
cavitation is employed to modify the
surface roughness in
nano and micro scales. The target surface
was investigated with
digit
al optical
microscopy
,
atomic force and
electrostatic force microscopy
(AFM and EFM)
and also with a
white
light interferomet
er
.
These different observation techniques indicate that at short exposure times,
the
observed
characteristic features in the micro
structure
–
hills, holes and wavy configurat
ion
–
can be
related to the start of the plastic deformation of the specimen surface. Longer exposure times
inevitably result in a greater number of jet
specimen interactions leading to specimen erosion and
fract
ure. The results
demonstrate
the possibility to
use cavitation bubbles
as a
micro
-
nanofabrication
method for the surface preparation
/modification
or
shoot
-
less surface peening.
EFM
results present
a
possibility
of using cavitation as tool to enhance the e
lectrostatic
properties of
a metal surface by
modifying
its
roughness. The degree of enhancement
depends o
n the material properties.
Nyelv:
angol
Típus:
Article
PeerReviewed
info:eu-repo/semantics/article
Formátum:
text
Azonosító:
Hutli, Ezddin and Bonyar, Attila and Oszetzky, Dániel and Nedeljkovic, Milos (2015) Plastic Deformation and Modification of Surface Characteristics in Nano and Micro Levels and Enhancement of Electric Field of FCC Materials Using Cavitaion Phenomenon. Mechanics of Materials, 92. pp. 289-298. ISSN 0167-6636, ESSN: 1872-7743
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