Effects of heat treatments and applied loads on the tribological behavior of Ti-56.5 wt. % Ni and Ti-57.5 wt. % Ni alloys were investigated. Wear tests were performed on a pin-on-disk tribometer under normal loads of 20 N and 60 N at a sliding speed of 0.3 m/s. The results indicated that the alloys aged at 700 °C showed lower hardness comparing to the alloys aged at 400 °C. Under an applied load of 20 N, the samples aged at 700 °C showed better wear behavior in comparison with the samples aged at 400 °C with a higher hardness. This could be attributed to higher toughness of the samples aged at 700 °C. The results also showed that the wear of the samples aged at 400 °C decreased with the increase in normal load. However, there was an increase in the wear of the samples aged at 700 °C with the increase of load. Formation and stability of tribological layers on the contacting surfaces could be the main reason for the reduction of the wear of the samples aged at 400 °C with the increase in normal load.

References

References
1.
Machado
,
L. G.
, and
Savi
,
M. A.
, 2003, “
Medical Applications of Shape Memory Alloys
,”
Braz. J. Med. Biol. Res.
,
36
, pp.
683
691
.
2.
Duerig
,
T.
,
Pelton
,
A.
, and
Stoeckel
,
D.
, 1999, “
An Overview of Nitinol Medical Applications
,”
Mater. Sci. Eng. A
,
273–275
, pp.
149
160
.
3.
Otsuka
,
K.
, and
Ren
,
X.
, 2005, “
Physical Metallurgy of Ti-Ni Based Shape Memory Alloys
,”
Prog. Mater. Sci.
,
50
, pp.
511
678
.
4.
Li
,
D. Y.
, 1998, “
A New Type of Wear-Resistant Material: Pseudo-Elastic TiNi Alloy
,”
Wear
,
221
, pp.
116
123
.
5.
Clayton
,
P.
, 1993, “
Tribological Behavior of a Titanium-Nickel Alloy
,”
Wear
,
162–164
, pp.
202
210
.
6.
Li
,
D. Y.
, and
Liu
,
R.
, 1999, “
The Mechanism Responsible for High Wear Resistance of Pseudo-elastic TiNi Alloy—A Novel Tribo-Material
,”
Wear
,
225–229
, pp.
777
783
.
7.
Liang
,
Y. N.
,
Li
,
S. Z.
,
Jin
,
Y. B.
,
Jin
,
W.
, and
Li
,
S.
, 1996, “
Wear Behavior of a TiNi Alloy
,”
Wear
,
198
, pp.
236
241
.
8.
Shida
,
Y.
, and
Sugimoto
,
Y.
, 1991, “
Water Jet Erosion Behaviour of Ti-Ni Binary Alloys
,”
Wear
,
146
, pp.
219
228
.
9.
Richman
,
R. H.
,
Rao
,
A. S.
, and
Hodgson
,
D. E.
, 1992, “
Cavitation Erosion of 2 NiTi Alloys
,”
Wear
,
157
, pp.
401
407
.
10.
Singh
,
J.
, and
Alpas
,
A. T.
, 1995, “
Dry Sliding Wear Mechanisms in a Ti50Ni47Fe3 Intermetallic Alloy
,”
Wear
,
181–183
, pp.
302
311
.
11.
Arciniegas
,
M.
,
Casals
,
J.
,
Manero
,
M. J.
,
Pena
,
J.
, and
Gil
,
F. J.
, 2007, “
Study of Hardness and Wear Behaviour of NiTi Shape Memory Alloys
,”
J. Alloys Compd.
,
460
, pp.
213
219
.
12.
Qian
,
L.
,
Zhou
,
Z.
, and
Sun
,
Q.
, 2005, “
The Role of Phase Transition in the Fretting Behavior of NiTi Shape Memory Alloy
,”
Wear
,
259
, pp.
309
318
.
13.
Gialanella
,
S.
,
Ischia
,
G.
, and
Straffelini
,
G.
, 2008, “
Phase Composition and Wear Behavior of NiTi Alloys
,”
J. Mater. Sci.
,
43
, pp.
1701
1710
.
14.
Qian
,
L.
,
Xiao
,
X.
,
Sun
,
Q.
, and
Yu
,
T.
, 2004, “
Anomalous Relationship between Hardness and Wear Properties of a Superelastic Nickel–Titanium Alloy
,”
Appl. Phys. Lett.
,
84
, pp.
1076
1078
.
15.
Li
,
D. Y.
, 1996, “
Wear Behaviour of TiNi Shape Memory Alloy
,”
Scr. Mater.
,
34
(
2
), pp.
195
200
.
16.
Imbeni
,
V.
,
Martini
,
C.
,
Prandstraller
,
D.
,
Poli
,
G.
,
Trepanier
,
C.
, and
Duerig
,
T. W.
, 2003, “
Preliminary Study of Micro-Scale Abrasive Wear of a NiTi Shape Memory Alloy
,”
Wear
,
254
, pp.
1299
1306
.
17.
Liu
,
R.
, and
Li
,
D. Y.
, 1999, “
Indentation Behavior of Pseudoelastic TiNi Alloy
,”
Scr. Mater.
,
41
(
7
), pp.
691
696
.
18.
Lin
,
H. C.
,
Lin
,
K. M.
, and
Chen
,
Y. C.
, 2000, “
Indentation Behavior of Pseudoelastic TiNi Alloy
,”
J. Mater. Process. Technol.
,
105
, pp.
327
332
.
19.
Abedini
,
M.
,
Ghasemi
,
H. M.
,
Nili Ahmadabadi
,
M.
, and
Mahmudi
,
R.
, 2010, “
Effect of Phase Transformation on the Wear Behavior of NiTi Alloy
,”
J. Eng. Mater. Technol
.
132
,
031010
(
1–6
).
20.
Abedini
,
M.
,
Ghasemi
,
H. M.
, and
Nili Ahmadabadi
,
M.
, 2010, “
Tribological Behavior of NiTi Alloy Against 52100 Steel and WC at Elevated Temperatures
,”
Mater. Charact.
,
61
, pp.
689
695
.
21.
Nishida
,
M.
,
Wayman
,
C. M.
, and
Honma
,
T.
, 1986, “
Precipitation Processes in Near-Equiatomic TiNi Shape Memory Alloys
,”
Metall. Trans. A
,
17
, pp.
1505
1515
.
22.
Stroz
,
D.
, 1997, “
Precipitation Process in a Deformed NiTi Near Equiatomic Alloy
,”
J. Phys. IV France
7
, pp.
293
297
.
23.
Hutchings
,
I. M.
,
Tribology: Friction and Wear of Engineering
(
Edward Arnold
,
London
, 1992).
24.
Zum Gahr
,
K. H.
,
Microstructure and Wear of Materials
(
Elsevier
,
Amsterdam
, 1987).
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