It is generally known that the humidity in the surrounding atmosphere influences wear processes in general. For fretting wear several authors examined the influence of humidity on the wear scar morphology and the composition of the wear debris. No agreement between the different results has been found, yet. In the present study, a distinction is made between running-in and steady-state fretting wear. Especially for the running-in stage, the influence of the humidity in ambient air on the friction and wear behavior and material transfer of steel surfaces subjected to contact vibrations has been investigated. The fretting experiments were conducted with a spherical against a flat specimen under gross-slip regime. The fretting wear and accompanying material transfer between the contacting specimens quantitatively are measured with Thin Layer Activation method. It has been observed that high ambient humidity has a beneficial influence on the running-in fretting wear of steel surfaces. It has also been found that the results of several authors concerning the influence of humidity on the fretting wear of steel have to be treated with great care, as classical wear measuring techniques can give erroneous wear results.

1.
Batchelor
A. W.
,
Stachowiak
G. W.
, and
Cameron
A.
,
1986
, “
The Relationship Between Oxide Films and the Wear of Steel
,”
Wear
, Vol.
113
, p.
203
203
.
2.
Benham
T. J.
,
Leheup
E. R.
, and
Moon
J. R.
,
1994
, “
The Effect of Debris Chemistry on the Debris Formation and Fretting Behaviour of Mild Steel in CO2 Containing Oxygen and Water Vapour
,”
Wear
, Vol.
177
, p.
195
195
.
3.
Bill, R. C., 1978, “Fretting Wear of Iron, Nickel and Titanium Under Varied Environmental Conditions,” NASA, rep. TM-78972.
4.
De Baets
P.
, and
Strijckmans
K.
,
1996
, “
Thin Layer Activation (TLA) for Measuring Fretting Wear and Material Transfer in Iron Alloys
,”
Trib. Int.
, Vol.
29
, No.
4
. p.
307
307
.
5.
De Baets, P., and Strijckmans, K., 1996, “The Quantification of Microscopic Wear Amounts of Steel Surfaces with Thin Layer Activation,” Europ. Journ. Mech. Eng., in press.
6.
Feng
I. M.
, and
Uhlig
H. H.
,
1954
, “
Fretting corrosion of mild steel in air and in nitrogen
,”
ASME JOURNAL OF APPLIED MECHANICS
, Vol.
21
(
2
), p.
395
395
.
7.
Godfrey
D.
,
1956
, “
A Study of Fretting Wear in Mineral Oil
,”
Lubr. Eng.
, Vol.
12
(
1
), p.
37
37
.
8.
Godfrey, D., Bailey, J. M., 1954, “Early Stages of Fretting of Copper, Iron and Steel,” Lub. Eng., June, p. 155.
9.
Goto
H.
,
Ashida
M.
, and
Endo
K.
,
1987
, “
The Influence of Oxygen and Water Vapour on the Friction and Wear of an Aluminium Alloy under Fretting Conditions
,”
Wear
, Vol.
116
, p.
141
141
.
10.
Goto
H.
, and
Buckley
D. H.
,
1985
, “
The Influence of Water Vapour in Air on the Friction Behaviour of Pure Metals During Fretting
,”
Trib. Int.
, Vol.
18
, p.
237
237
.
11.
Leheup
E. R.
, and
Pendlebury
R. E.
,
1991
, “
Unlubricated Reciprocating Wear of Stainless Steel with an Interfacial Air Flow
,”
Wear
, Vol.
142
, p.
351
351
.
12.
Mohrbacher
M.
,
Blanpain
B.
,
Celis
J. P.
, and
Roos
J. R.
,
1995
, “
The Influence of Humidity on the Fretting Behaviour of PVD-TiN Coatings
,”
Wear
, Vol.
180
, p.
43
43
.
13.
Papaphilippou
C.
,
Vardavoulias
M.
, and
Jeandin
M.
,
1994
, “
The Influence of Humidity and the Role of Debris in the Unlubricated Wear of Ductile Cast Iron Against Alumina
,”
Wear
, Vol.
177
, p.
151
151
.
14.
Soda
N.
, and
Aoki
A.
,
1959
, “
On Fretting Corrosion (Part I)—Nature of Fretting Corrosion
,”
Trans. Jpn. Soc. Mech. Eng.
, Vol.
25
, p.
995
995
.
15.
Threthewey, K. R., and Chamberlain, J., 1988, Corrosion, Longman Scientific and Technical, London.
16.
Tompkins, F. C., 1978, Chemisorption of Gases on Metals, Academic Press, London.
17.
Waterhouse, R. B., 1972, Fretting Corrosion, Pergamon Press, New York.
18.
Wright, K. H. R., 1952, “An investigation of fretting corrosion,” Proc. Instn. Mech. Engrs., Part 1B, p. 556.
This content is only available via PDF.
You do not currently have access to this content.