In this work, the dry sliding friction and wear properties were studied by wear test for 100Cr6 bearing steel when Nb content was 0.018% and 0.040%. In addition, in order to explain the differences, the experimental samples were processed for spheroidizing annealed and the quenched-tempered microstructure and hardness was analyzed. The result indicated that their friction coefficient was decreased to 0.047 when Nb content was 0.018% and the worn surface is microcutting and spalling without plowing. When Nb content was 0.040%, the friction coefficient was decreased to 0.006 and maximum wear depth was the deepest owing to obvious cutting. In order to increase the properties of the friction and wearing, Nb content should be decreased. With Nb content increased, the properties of the friction and wearing are decreased. The incorporation of Nb into bearing steel promotes the formation of martensite and carbide particles, which results in the diversity of the wear behaviors, eventually.

References

References
1.
Lai
,
J.
,
Lund
,
T.
,
Rydén
,
K.
,
Gabelli
,
A.
, and
Strandell
,
I.
,
2012
, “
The Fatigue Limit of Bearing Steels—Part I: A Pragmatic Approach to Predict Very High Cycle Fatigue Strength
,”
Int. J. Fatigue
,
38
(
5
), pp.
155
168
.
2.
Tortora
,
A. M.
, and
Veeregowda
,
D. H.
,
2017
, “
Effects of Two Sliding Motions on the Superlubricity and Wear of Self-Mated Bearing Steel Lubricated by Aqueous Glycerol With and Without Nanodiamonds
,”
Wear
,
386–387
, pp.
173
178
.
3.
Kalin
,
M.
,
Vizintin
,
J.
,
Novak
,
S.
, and
Dražič
,
G.
,
1997
, “
Wear Mechanisms in Oil-Lubricated and Dry Fretting of Silicon Nitride Against Bearing Steel Contacts
,”
Wear
,
210
(
1–2
), pp.
27
38
.
4.
Hammami
,
M.
,
Rodrigues
,
N.
,
Fernandes
,
C.
,
Martins
,
C. R.
,
Seabra
,
J.
,
Abbes
,
S. M.
, and
Hadder
,
M.
,
2017
, “
Axle Gear Oils: Friction, Wear and Tribofilm Generation Under Boundary Lubrication Regime
,”
Tribol. Int.
,
114
, pp.
88
108
.
5.
Mahmoudi
,
B.
,
Doll
,
G. L.
,
Hager
,
C. H.
, Jr.
, and
Evans
,
D. R.
,
2016
, “
Influence of a WC/a-C:H Tribological Coating on Micropitting Wear of Bearing Steel
,”
Wear
,
350–351
(
4
), pp.
107
115
.
6.
Song
,
Y. L.
,
Yu
,
C.
,
Miao
,
X.
,
Han
,
X. H.
,
Qian
,
D. S.
, and
Chen
,
X.
,
2017
, “
Tribological Performance Improvement of Bearing Steel GCr15 by an Alternating Magnetic Treatment
,”
Acta Metall. Sin.
,
30
(
10
), pp.
957
964
.
7.
Kustas
,
F. M.
, and
Misra
,
M. S.
,
1984
, “
Application of Ion Implantation to Improve the Wear Resistance of 52100 Bearing Steel
,”
Thin Solid Films
,
122
(
4
), pp.
279
286
.
8.
Jeglitsch
,
F.
,
2001
, “
Niobium in Tool Steels and Cemented Carbides
,”
International Symposium on Niobium
, Orlando, FL, Dec. 2–5, pp. 1001–1039.
9.
Medina
,
S. F.
,
Quispe
,
A.
,
Valles
,
P.
, and
Baños
,
J. L.
,
1999
, “
Recrystallization-Precipitation Interaction Study of Two Medium Carbon Niobium Microalloyed Steels
,”
ISIJ Int.
,
39
(
9
), pp.
913
922
.
10.
Wu
,
S.
,
Li
,
X.
,
Zhang
,
J.
,
Shang
,
C. J.
, and
Misra
,
K. D. R.
,
2015
, “
Microstructural Refinement and Mechanical Properties of High-Speed Niobium-Microalloyed Railway Wheel Steel
,”
Steel Res. Int.
,
86
(
7
), pp.
775
784
.
11.
Li
,
X.
,
Kang
,
Y. L.
,
Gu
,
K. J.
,
Kang
,
Y. L.
, and
Li
,
X.
,
2004
, “
Continuous Cooling Transformation of Niobium Microalloyed High Carbon Steels
,”
J. Iron Steel Res.
,
16
(
3
), pp.
44
48
.
12.
Shen
,
K.
,
Yu
,
X. S.
,
Liao
,
S. L.
, and
Ma
,
H.
,
2015
, “
Austenite Grain Growth Behavior of V and Nb-V Microalloyed High-Carbon Steels
,”
Trans. Mater. Heat Treat.
,
36
(
2
), pp.
102
107
.
13.
Briscoe
,
B. J.
,
1985
, “
Contact Mechanics
,”
Tribol. Int.
,
19
(
2
), pp.
109
110
.
14.
Ball
,
A.
,
1983
, “
On the Importance of Work Hardening in the Design of Wear-Resistant Materials
,”
Wear
,
91
(
2
), pp.
201
207
.
15.
Ji
,
Y. P.
,
Liu
,
Z. C.
, and
Ren
,
H. P.
,
2011
, “
Morphology and Formation Mechanism of Martensite in Steels With Different Carbon Content
,”
Adv. Mater. Res.
,
201–203
, pp.
1612
1618
.
16.
Fossaert
,
C.
,
Rees
,
G.
,
Maurickx
,
T.
, and
Bhadeshia
,
H. K. D. H
.,
1995
, “
The Effect of Niobium on the Hardenability of Microalloyed Austenite
,”
Metall. Mater. Trans. A
,
26
(
1
), pp.
21
30
.
17.
Hokkirigawa
,
K.
,
Kato
,
K.
, and
Li
,
Z. Z.
,
1988
, “
The Effect of Hardness on the Transition of the Abrasive Wear Mechanism of Steels
,”
Wear
,
123
(
2
), pp.
241
251
.
18.
Han
,
H.
,
Zhao
,
X.
,
Zhao
,
X.
,
Wan, C. J.
, and
Wang, W.
,
2017
, “
Effect of Proeutectoid Carbide on Heredity in Microstructure-Mechanical Properties and Fatigue Life of GCr15 Bearing Steel
,”
Metall. Res. Technol.
,
114
(
2
), p.
208
.
You do not currently have access to this content.