This paper describes an attempt to include surface roughness effects in the conventional pressure-velocity (PV) map for lubricated sliding surfaces. The criteria proposed involve two different boundaries: a plasticity limit and a temperature limit. The first criterion is given by a certain normal load to the system at which the plastically deformed asperities start interacting with each other. The second is given by an operating condition at which the surface temperature reaches a prescribed value. The effect of fluid film formation is considered in calculating effective normal load for these two criteria. By employing an exponential roughness height distribution and a long bearing approximation in fluid film pressure prediction, the diagram can easily be modified or reproduced for the system having different surfaces and materials. The diagram was adopted to evaluate a steel/steel end-face friction test result. Reasonable agreement was found.

1.
Akagaki
T.
, and
Kato
K.
,
1989
, “
Wear Mode Diagram in Lubricated Sliding Friction of Carbon Steel
,”
Wear
, Vol.
129
, pp.
303
317
.
2.
Archard
J. F.
,
1953
, “
Contact and Rubbing of Flat Surfaces
,”
Journal of Applied Physics
, Vol.
24
, p.
981
981
.
3.
Archard
J. F.
,
1958
/1959
, “
The Temperature of Rubbing Surfaces
,”
Wear
, Vol.
2
, pp.
438
455
.
4.
Begelinger
A.
, and
de Gee
A. W. J.
,
1974
, “
Thin Film Lubrication of Sliding Point Contacts of a.i.s.i. 52100 Steel
,”
Wear
, Vol.
28
, pp.
103
114
.
5.
Bush
A. W.
,
Gibson
R. D.
, and
Keogh
G. P.
,
1976
, “
The Limit of Elastic Deformation in the Contact of Rough Surfaces
,”
Mechanics Research Communications
, Vol.
3
, pp.
169
174
.
6.
Chang
W. R.
,
Etsion
L.
, and
Bogy
D. B.
,
1987
, “
An Elastic-Plastic Model for the Contact of Rough Surfaces
,”
ASME JOURNAL OF TRIBOLOGY
, Vol.
109
, pp.
257
263
.
7.
de Gee, A. W. J., Begelinger, A., and G. Salomon, 1984, “Failure Mechanisms in Sliding Lubricated Concentrated Contacts,” Proceedings of the 11th Leeds-Lyon Symposium on Tribology, pp. 105–116.
8.
Enthoven
J. C.
,
Cann
P. M.
, and
Spikes
H. A.
,
1993
, “
Temperature and Scuffing
,”
Tribology Transactions
, Vol.
36
, pp.
258
266
.
9.
Etsion
I.
, and
Front
I.
,
1994
, “
A Model for Static Sealing Performance of End Face Seals
,”
Tribology Transactions
, Vol.
37
, pp.
111
119
.
10.
Greenwood
J. A.
, and
Tripp
J. H.
,
1970-1971
, “
The Contact of Two Nominally Flat Rough Surfaces
,”
Proceedings of the Institution of Mechanical Engineers
, Vol.
185
, pp.
625
633
.
11.
Greenwood
J. A.
, and
Williamson
J. B. P.
,
1966
, “
Contact of Nominally Flat Surfaces
,”
Proceedings of the Royal Society of London, Series A
, Vol.
295
, pp.
300
319
.
12.
Hirst
W.
, and
Hollander
A. B.
,
1974
, “
Surface Finish and Damage in Sliding
,”
Proceedings of Royal Society of London, Series A
, Vol.
337
, pp.
379
394
.
13.
Johnson, K. L., 1985, Contact Mechanics, Cambridge University Press, Cambridge.
14.
Johnson
R. R.
,
Dow
T. A.
, and
Zhang
Y. Y.
,
1988
, “
Thermoelastic Instability in Elliptic Contact Between Two Sliding Surfaces
,”
ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol.
110
, pp.
80
86
.
15.
Lim
S. C.
, and
Ashby
M. F.
,
1987
, “
Wear Mechanism Map
,”
Acta Metallurgica
, Vol.
35
, pp.
1
24
.
16.
Ludema
K. C.
,
1984
, “
A Review of Scuffing and Running-In of Lubricated Surfaces, with Asperities and Oxides in Respective
,”
Wear
, Vol.
100
, pp.
315
331
.
17.
Makino, T., 1993, “On the Improvement of Lubrication Performance of Parallel Sliding Surfaces with Micro-Inlet Wedge,” Presented at 61th meeting on fluid sealing, JAST.
18.
Makino, T., Morohoshi, S., and Saki, K., 1998, “The Effect of Roughness Orientation on Mixed Friction,” Accepted to the Proceedings of 24th Leeds-Lyon Symposium on Tribology.
19.
McCool
J. I.
,
1987
, “
Relating Profile Instrument Measurements to the Functional Performance of Rough Surfaces
,”
ASME JOURNAL OF TRIBOLOGY
, Vol.
109
, pp.
264
270
.
20.
Nayak
P. R.
,
1971
, “
Random Process Model of Rough Surfaces
,”
ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol.
93
, pp.
398
407
.
21.
Patir
N.
, and
Cheng
H. S.
,
1978
, “
A Average Flow Model for Determining Effects of Three-Dimensional Roughness on Partial Hydrodynamic Lubrication
,”
ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol.
100
, pp.
12
17
.
22.
Patir
N.
, and
Cheng
H. S.
,
1979
, “
Application of Average Flow Model to Lubrication Between Rough Sliding Surfaces
,”
ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol.
101
, pp.
220
230
.
23.
Pinkus, O., and Sternlich, B., 1961, Theory of Hydrodynamic Lubrication, McGraw-Hill, New York.
24.
Poon
C. Y.
, and
Sayies
R. S.
,
1992
, “
The Classification of Rough Surface Contacts in Relation to Tribology
,”
Journal of Physics, D
, Vol.
25
, pp.
A249–A256
A249–A256
.
25.
Saki
K.
,
Watanabe
S.
,
Sudo
K.
, and
Ishibashi
S.
,
1987
, “
Study for Scoring Limit of Sliding Surfaces
,”
Mitsubishi Juko Giho
, Vol.
24
, pp.
115
120
.
26.
Samuels
B.
, and
Richards
M. N.
,
1991
, “
The Transition Between Mild and Severe Wear for Boundary-Lubricated Steel
,”
ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol.
113
, pp.
65
72
.
27.
Sayles
R. S.
, and
Thomas
T. R.
,
1976
, “
Thermal Conductance of a Rough Elastic Contact
,”
Applied Energy
, Vol.
2
, pp.
249
267
.
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