Abstract

Recently, the synergistic tribological properties between molybdenum dialkyldithiocarbamate (MoDTC) and metal detergents have been the focus of significant attention due to the high requirements of engine oil. In this study, an SRV tribometer and four-ball machine were used to study the tribological performance of MoDTC combined with three types of metal detergents with different base numbers. Meanwhile, the detergency of the three metal detergents was also investigated using the hot tube test and crankcase simulation test. The results showed that (i) a high-based detergent possessed an excellent detergency performance compared with that of low-based detergents. (ii) The tribological properties of the base oil with a content of 0.75% MoDTC were superior to those of other contents at elevated temperatures. (iii) The metal detergents with a higher base number showed the best thermal stability, detergency performance, and anti-wear performance among the three types of metal detergents. The anti-wear mechanism was that the synergistic action of active elements in MoDTC and metal detergents promoted the generation of a tribological film.

References

1.
Skjoedt
,
M.
,
Butts
,
R.
,
Assanis
,
D. N.
, and
Bohac
,
S. V.
,
2008
, “
Effects of Oil Properties on Spark-Ignition Gasoline Engine Friction
,”
Tribol. Int.
,
41
(
6
), pp.
556
563
. 10.1016/j.triboint.2007.12.001
2.
Michalski
,
J.
, and
Wos
,
P.
,
2011
, “
The Effect of Cylinder Liner Surface Topography on Abrasive Wear of Piston-Cylinder Assembly in Combustion Engine
,”
Wear
,
271
(
3
), pp.
582
589
. 10.1016/j.wear.2010.05.006
3.
Macian
,
V.
,
Tormos
,
B.
,
Ruiz
,
S.
, and
Miro
,
G.
,
2016
, “
Low Viscosity Engine Oils: Study of Wear Effects and Oil Key Parameters in a Heavy Duty Engine Fleet Test
,”
Tribol. Int.
,
94
(
2
), pp.
240
248
. 10.1016/j.triboint.2015.08.028
4.
Wu
,
B.
,
2013
,
Study on Low Friction System Optimization of Gasoline Engine and Its Effects on Engine-Saving
,
Jilin University
,
Changchun, Jilin, China
.
5.
Shu
,
J.
,
Harris
,
K.
,
Munavirov
,
B.
,
Westbroek
,
R.
,
Leckner
,
J.
, and
Glavatskih
,
S.
,
2018
, “
Tribology of Polypropylene and Li-Complex Greases With ZDDP and MoDTC Additives
,”
Tribol. Int.
,
118
(
2
), pp.
189
195
. 10.1016/j.triboint.2017.09.028
6.
De Barros’ Bouchet
,
M. I.
,
Martin
,
J. M.
,
Le-Mogne
,
T.
, and
Vacher
,
B.
,
2005
, “
Boundary Lubrication Mechanisms of Carbon Coatings by MoDTC and ZDDP Additives
,”
Tribol. Int.
,
38
(
3
), pp.
257
264
. 10.1016/j.triboint.2004.08.009
7.
Gorbatchev
,
O.
,
De Barros’ Bouchet
,
M. I.
,
Martin
,
J. M.
,
Leonard
,
D.
,
Le-Mogne
,
T.
,
Iovine
,
R.
,
Thiebaut
,
B.
, and
Heau
,
C.
,
2016
, “
Friction Reduction Efficiency of Organic Mo-Containing FM Additives Associated to ZDDP for Steel and Carbon-Based Contacts
,”
Tribol. Int.
,
99
(
7
), pp.
278
288
. 10.1016/j.triboint.2016.03.035
8.
Khaemba
,
D. N.
,
Neville
,
A.
, and
Morina
,
A.
,
2015
, “
A Methodology for Raman Characterisation of MoDTC Tribofilms and Its Application in Investigating the Influence of Surface Chemistry on Friction Performance of MoDTC Lubricants
,”
Tribol. Lett.
,
59
(
3
), p.
38
. 10.1007/s11249-015-0566-6
9.
Al-Jeboori
,
Y.
,
Kosarieh
,
S.
,
Morina
,
A.
, and
Neville
,
A.
,
2018
, “
Investigation of Pure Sliding and Sliding/Rolling Contacts in a DLC/Cast Iron System When Lubricated in Oils Containing MoDTC-Type Friction Modifier
,”
Tribol. Int.
,
122
(
6
), pp.
23
37
. 10.1016/j.triboint.2018.02.015
10.
Yajun
,
M.
,
Wancheng
,
Z.
,
Shenghua
,
L.
,
Yuansheng
,
J.
,
Yucong
,
W.
, and
Simon
,
T.
,
2005
, “
Tribological Performance of Three Advanced Piston Rings in the Presence of MoDTC-Modified Gf-3 Oils
,”
Tribol. Lett.
,
18
(
1
), pp.
75
83
. 10.1007/s11249-004-1759-6
11.
Zhou
,
S.
,
Wang
,
L.
, and
Xue
,
Q.
,
2012
, “
Controlling Friction and Wear of NC-WC/a-C(Al) Nanocomposite Coating by Lubricant/Additive Synergies
,”
Surf. Coat. Tech.
,
206
(
10
), pp.
2698
2705
. 10.1016/j.surfcoat.2011.11.031
12.
De Feo
,
M.
,
Bouchet
,
M. D. B.
,
Minfray
,
C.
,
Le Mogne
,
T.
,
Meunier
,
F.
,
Yang
,
L.
,
Thiebaut
,
B.
, and
Martin
,
J. M.
,
2016
, “
MoDTC Lubrication of DLC-Involving Contacts. Impact of MoDTC Degradation
,”
Wear
,
348
(
2
), pp.
116
125
. 10.1016/j.wear.2015.12.001
13.
Zhang
,
D.
,
Li
,
Z.
,
Gao
,
F.
,
Wei
,
X.
, and
Ni
,
Y.
,
2019
, “
Tribological Performance of Polymer Composite Coatings Modified with La2O3 and MoS2 Nanoparticles
,”
ASME J. Tribol.
,
141
(
11
), p.
111601
. 10.1115/1.4044465
14.
Zhang
,
D.
,
Sun
,
X.
,
Gao
,
F.
,
Zhong
,
S.
, and
Duan
,
J.
,
2019
, “
Effect of Texture Parameters on Tribological Performance of Slipper Surface in Hydraulic Motor
,”
Surf. Technol.
,
48
(
4
), pp.
230
236
.
15.
Zhang
,
D.
,
Gao
,
F.
,
Wei
,
X.
,
Liu
,
G.
,
Hua
,
M.
, and
Li
,
P.
,
2018
, “
Fabrication of Textured Composite Surface and its Tribological Properties Under Starved Lubrication and Dry Sliding Conditions
,”
Surf. Coat. Tech.
,
350
(
9
), pp.
313
322
. 10.1016/j.surfcoat.2018.07.026
16.
Yue
,
W.
,
Sun
,
X.
,
Wang
,
C.
,
Fu
,
Z.
,
Liu
,
Y.
, and
Liu
,
J.
,
2011
, “
A Comparative Study on the Tribological Behaviors of Nitrided and Sulfur-Nitrided 35CrMo Steel Lubricated in PAO Base Oil With MoDTC Additive
,”
Tribol. Int.
,
44
(
12
), pp.
2029
2034
. 10.1016/j.triboint.2011.08.017
17.
De Barros Bouchet
,
M. I.
,
Martin
,
J. M.
,
Le Mogne
,
T.
,
Bilas
,
P.
,
Vacher
,
B.
, and
Yamada
,
Y.
,
2005
, “
Mechanisms of MoS2 Formation by MoDTC in Presence of ZnDTP: Effect of Oxidative Degradation
,”
Wear
,
258
(
11
), pp.
1643
1650
. 10.1016/j.wear.2004.11.019
18.
Chen
,
Z.
,
Xiao
,
S.
,
Chen
,
F.
,
Chen
,
D.
,
Fang
,
J.
, and
Zhao
,
M.
,
2011
, “
Calcium Carbonate Phase Transformations During the Carbonation Reaction of Calcium Heavy Alkylbenzene Sulfonate Overbased Nanodetergents Preparation
,”
J. Colloid Interf. Sci.
,
359
(
1
), pp.
56
67
. 10.1016/j.jcis.2011.03.086
19.
Kang
,
F.
,
Wang
,
D.
,
Pu
,
Y.
,
Zeng
,
X.
,
Wang
,
J.
, and
Chen
,
J.
,
2018
, “
Efficient Preparation of Monodisperse CaCO3 Nanoparticles as Overbased Nanodetergents in a High-Gravity Rotating Packed Bed Reactor
,”
Powder Technol.
,
325
(
2
), pp.
405
411
. 10.1016/j.powtec.2017.11.036
20.
Chinas-Castillo
,
F.
, and
Spikes
,
H. A.
,
2000
, “
Film Formation by Colloidal Overbased Detergents in Lubricated Contacts
,”
ASLE Trans.
,
43
(
3
), pp.
357
366
.
21.
Urrego
,
R. A.
,
2007
, “
Study of Surface Films of the ZDDP and the MoDTC With Crystalline and Amorphous Overbased Calcium Sulfonates by XPS
,”
Tribol. T.
,
50
(
2
), pp.
217
226
. 10.1080/10402000701271051
22.
Topolovec-Miklozic
,
K.
,
Forbus
,
T. R.
, and
Spikes
,
H.
,
2008
, “
Film Forming and Friction Properties of Overbased Calcium Sulphonate Detergents
,”
Tribol. Lett.
,
29
(
1
), pp.
33
44
. 10.1007/s11249-007-9279-9
23.
Costello
,
M. T.
, and
Riff
,
I. I.
,
2005
, “
Study of Hydroforming Lubricants With Overbased Sulfonates and Friction Modifiers
,”
Tribol. Lett.
,
20
(
3
), pp.
201
208
. 10.1007/s11249-005-8327-6
24.
Wang
,
L.
,
Zhang
,
D.
,
Wu
,
H.
,
Xie
,
Y.
, and
Dong
,
G.
,
2017
, “
Effects of Phosphorus-Free Antioxidants on Oxidation Stability and High-Temperature Tribological Properties of Lubricants
,”
P. I. Mech. J.-J. Eng.
,
231
(
12
), pp.
1527
1536
.
25.
Qu
,
J.
, and
Truhan
,
J. J.
,
2006
, “
An Efficient Method for Accurately Determining Wear Volumes of Sliders With Non-Flat Wear Scars and Compound Curvatures
,”
Wear
,
261
(
7
), pp.
848
855
. 10.1016/j.wear.2006.01.009
26.
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
. 10.1016/j.wear.2006.08.021
27.
Ofunne
,
G. C.
,
Maduako
,
A. U.
, and
Ojinnaka
,
C. M.
,
1991
, “
Studies on the Effects of Temperature on the Chemical Characteristics of Automotive Crankcase Oils and Their Base Oils
,”
Tribol. Int.
,
24
(
3
), pp.
173
178
. 10.1016/0301-679X(91)90023-3
28.
Lee
,
H.
,
Wang
,
S. S.
,
Smolenski
,
D. J.
,
Viola
,
M. B.
, and
Klusendorf
,
E. E.
,
1994
, “
In Situ Monitoring of High-Temperature Degraded Engine Oil Condition With Microsensors
,”
Sensor. Actuat. B: Chem.
,
20
(
1
), pp.
49
54
. 10.1016/0925-4005(93)01168-4
29.
Ohkawa
,
S.
,
Seto
,
K.
,
Nakashima
,
T.
, and
Takase
,
K.
,
1984
, “
“Hot Tube Test”-Analysis of Lubricant Effect on Diesel Engine Scuffing
,” SAE Paper 840262.
30.
De Feo
,
M.
,
Minfray
,
C.
,
De Barros Bouchet
,
M. I.
,
Thiebaut
,
B.
,
Le Mogne
,
T.
,
Vacher
,
B.
, and
Martin
,
J. M.
,
2015
, “
Ageing Impact on Tribological Properties of MoDTC-Containing Base Oil
,”
Tribol. Int.
,
92
(
12
), pp.
126
135
. 10.1016/j.triboint.2015.04.014
31.
Morina
,
A.
,
Neville
,
A.
,
Priest
,
M.
, and
Green
,
J. H.
,
2006
, “
ZDDP and MoDTC Interactions and Their Effect on Tribological Performance-Tribofilm Characteristics and Its Evolution
,”
Tribol. Lett.
,
24
(
3
), pp.
243
256
. 10.1007/s11249-006-9123-7
32.
Roshan
,
R.
,
Priest
,
M.
,
Neville
,
A.
,
Morina
,
A.
,
Xia
,
X.
,
Warrens
,
C. P.
, and
Payne
,
M. J.
,
2011
, “
A Boundary Lubrication Friction Model Sensitive to Detailed Engine Oil Formulation in an Automotive Cam/Follower Interface
,”
ASME J. Tribol.
,
133
(
4
), p.
042101
. 10.1115/1.4004880
33.
Graham
,
J.
,
Spikes
,
H.
, and
Korcek
,
S.
,
2001
, “
The Friction Reducing Properties of Molybdenum Dialkyldithiocarbamate Additives: Part I-Factors Influencing Friction Reduction
,”
Tribol. T.
,
44
(
4
), pp.
626
636
. 10.1080/10402000108982504
34.
Johnson
,
M. D.
,
Jensen
,
R. K.
,
Clausing
,
E. M.
,
Schriewer
,
K.
, and
Korcek
,
S.
,
1995
, “
Effects of Aging on Frictional Properties of Fuel Efficient Engine Oils
,” SAE Paper 952532.
35.
Hoshino
,
K.
,
Kawai
,
H.
, and
Akiyama
,
K.
,
1998
, “
Fuel Efficiency of SAE 5W-20 Friction Modified Gasoline Engine Oil
,” SAE Paper 982506.
36.
Okubo
,
H.
,
Yonehara
,
M.
, and
Sasaki
,
S.
,
2018
, “
In Situ Raman Observations of the Formation of MoDTC-Derived Tribofilms at Steel/Steel Contact Under Boundary Lubrication
,”
Tribol. T.
,
61
(
6
), pp.
1040
1047
. 10.1080/10402004.2018.1462421
37.
Zhang
,
M.
,
Wang
,
X.
,
Fu
,
X.
, and
Xia
,
Y.
,
2009
, “
Performance and Anti-Wear Mechanism of CaCO3 Nanoparticles as a Green Additive in Poly-Alpha-Olefin
,”
Tribol. Int.
,
42
(
7
), pp.
1029
1039
. 10.1016/j.triboint.2009.02.012
38.
Costello
,
M. T.
,
2006
, “
Study of Surface Films of Amorphous and Crystalline Overbased Calcium Sulfonate by XPS and AES
,”
Tribol. Trans.
,
49
(
4
), pp.
592
597
. 10.1080/10402000600927563
39.
Kubo
,
T.
,
Fujiwara
,
S.
,
Nanao
,
H.
,
Minami
,
I.
, and
Mori
,
S.
,
2008
, “
Boundary Film Formation From Overbased Calcium Sulfonate Additives During Running-in Process of Steel-DLC Contact
,”
Wear
,
265
(
3
), pp.
461
467
. 10.1016/j.wear.2007.11.027
40.
Kubo
,
T.
,
Fujiwara
,
S.
,
Nanao
,
H.
,
Minami
,
I.
, and
Mori
,
S.
,
2006
, “
TOF-SIMS Analysis of Boundary Films Derived From Calcium Sulfonates
,”
Tribol. Lett.
,
23
(
2
), pp.
171
176
. 10.1007/s11249-006-9093-9
41.
Balarini
,
R.
,
Diniz
,
G. A. S.
,
Profito
,
F. J.
, and
Souza
,
R. M.
,
2020
, “
Comparison of Unidirectional and Reciprocating Tribometers in Tests With MoDTC-Containing Oils Under Boundary Lubrication
,”
Tribol. Int.
,
149
(
9
), p.
105686
. 10.1016/j.triboint.2019.03.044
42.
Guo
,
Z.
,
Zhang
,
Y.
,
Wang
,
J.
,
Gao
,
C.
,
Zhang
,
S.
,
Zhang
,
P.
, and
Zhang
,
Z.
,
2020
, “
Interactions of Cu Nanoparticles With Conventional Lubricant Additives on Tribological Performance and Some Physicochemical Properties of an Ester Base Oil
,”
Tribol. Int.
,
141
(
1
), p.
105941
. 10.1016/j.triboint.2019.105941
43.
Wang
,
Z.
,
Xia
,
Y.
, and
Liu
,
Z.
,
2015
, “
The Rheological and Tribological Properties of Calcium Sulfonate Complex Greases
,”
Friction
,
3
(
1
), pp.
28
35
. 10.1007/s40544-014-0063-1
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