The present work includes the study of boundary lubrication properties of SAE20W40 lubricating oil added with aluminum oxide nanoparticles. Pin-on-disk tribometer is employed to study the effects of nanoparticles in different sizes (40–80 nm) and concentrations (0–1% by weight) on the friction coefficient. The experimental design consists of L18 orthogonal array involving six levels for nanoparticles concentration and three levels for nanoparticles size, sliding speed, and normal load. The presence of nanoparticles has significantly improved the lubrication properties of oil. Minimum friction coefficient is recorded at 1200 rpm rotational speed and 160 N normal load for 0.8% concentration of 60 nm sized nanoparticles. Scanning electron microscopy (SEM) and electron diffraction spectrometry (XRD) are employed to understand the friction reduction mechanism.

Issue Section:
Technical Brief
Keywords:
Boundary lubrication, Fluid film lubrication, Lubricant additives, Nano-tribology, Wear
Topics:
Aluminum, Boundary lubrication, Friction, Nanoparticles, Stress, Wear, Disks

References

1.
Ozerinc
,
S.
,
Kakac
,
S.
, and
Yazlcloglu
,
A. G.
,
2010
, “
Enhanced Thermal Conductivity of Nanofluids: A State-of-the-Art Review
,”
Microfluid. Nanofluid.
,
8
(
2
), pp.
145
–
170
.
Google Scholar
Crossref
Search ADS
 
2.
de Carvalho
,
M. J. S.
,
Seidl
,
P. R.
,
Belchior
,
C. R. P.
, and
Sodre
,
J. R.
,
2010
, “
Lubricant Viscosity and Viscosity Improver Additive Effects on Diesel Fuel Economy
,”
Tribol. Int.
,
43
(
12
), pp.
2298
–
2302
.
Google Scholar
Crossref
Search ADS
 
3.
Sunqing
,
Q.
,
Junxiu
,
D.
, and
Guoxu
,
C.
,
1999
, “
Tribological Properties of CeF3 Nanoparticles as Additives in Lubricating Oils
,”
Wear
,
230
(
1
), pp.
35
–
38
.
Google Scholar
Crossref
Search ADS
 
4.
Hernandez Battez
,
A.
,
Fernandez Rico
,
J. E.
, and
Navas Arias
,
A.
,
2006
, “
The Tribological Behaviour of ZnO Nanoparticles as an Additive to PAO6
,”
Wear
,
261
(
3–4
), pp.
256
–
263
.
Google Scholar
Crossref
Search ADS
 
5.
Liu
,
G.
,
Li
,
X.
,
Qin
,
B.
,
Xing
,
D.
,
Guo
,
Y.
, and
Fan
,
R.
,
2004
, “
Investigation of the Mending Effect and Mechanism of Copper Nano-Particles on a Tribologically Stressed Surface
,”
Tribol. Lett.
,
17
(
4
), pp.
961
–
996
.
Google Scholar
Crossref
Search ADS
 
6.
Huang
,
H. D.
,
Tu
,
J. P.
,
Gan
,
L. P.
, and
Li
,
C. Z.
,
2006
, “
An Investigation on Tribological Properties of Graphite Nanosheets as Oil Additive
,”
Wear
,
261
(
2
), pp.
140
–
144
.
Google Scholar
Crossref
Search ADS
 
7.
Wu
,
Y. Y.
,
Tsui
,
W. C.
, and
Liu
,
T. C.
,
2007
, “
Experimental Analysis of Tribological Properties of Lubricating Oils With Nanoparticle Additives
,”
Wear
,
262
(
7–8
), pp.
819
–
825
.
Google Scholar
Crossref
Search ADS
 
8.
Gao
,
Y.
,
Chen
,
G.
,
Olib
,
Y.
,
Zhang
,
Z.
, and
Xue
,
Q.
,
2002
, “
Study on Tribological Properties of Oleic Acid-Modified TiO2 Nanoparticle in Water
,”
Wear
,
252
(
5–6
), pp.
454
–
458
.
Google Scholar
Crossref
Search ADS
 
9.
Ye
,
P.
,
Jiang
,
X.
,
Li
,
S.
, and
Li
,
S.
,
2002
, “
Preparation of NiMoO2S2 Nanoparticle and Investigation of Its Tribological Behavior as Additive in Lubricating Oils
,”
Wear
,
253
(
5–6
), pp.
572
–
575
.
Google Scholar
Crossref
Search ADS
 
10.
Abdullah
,
M. I. H. C.
,
Abdollah
,
M. F. B.
,
Amiruddin
,
H.
,
Tamaldin
,
N.
, and
Mat Nuri
,
N. R.
,
2014
, “
Optimization of Tribological Performance of hBN/Al2O3 Nanoparticles as Engine Oil Additives
,”
Procedia Eng.
,
68
, pp.
313
–
319
.
Google Scholar
Crossref
Search ADS
 
11.
Chandrasekaran
,
M.
,
Muralidhar
,
M.
,
Krishna
,
C. M.
, and
Dixit
,
U. S.
,
2010
, “
Application of Soft Computing Techniques in Machining Performance Prediction and Optimization: A Literature Review
,”
Int. J. Adv. Manuf. Technol.
,
46
(
5–8
), pp.
445
–
464
.
Google Scholar
Crossref
Search ADS
 
12.
Thakre
,
A. A.
,
2015
, “
Prediction of Erosion of Polyetherimide and Its Composites Using Response Surface Methodology
,”
ASME J. Tribol.
,
137
(
1
), p.
0116031
.
Google Scholar
Crossref
Search ADS
 
Copyright © 2016 by ASME
You do not currently have access to this content.