The dry-sliding tribological properties of the dendrite composite eutectic Fe-B alloys (Fe94.3B5.7, Fe75B25 Fe67B33) were studied comparatively with various sliding speeds. The friction coefficient of the Fe-B alloy changes slightly with the boron content. The wear rate of the Fe94.3B5.7 alloy with about 30 vol. % dendrite t-Fe2B is only one third of Fe75B25 alloy with 15 vol. % dendrite and Fe67B33 alloy with 90 vol. % dendrite in the high sliding speed. First, a hard t-Fe2B phase reduced the wear of the Fe-B alloy directly. Second, the compactly oxide layers resulting from oxidation of the α-Fe on the worn surfaces also decreases the wear rate of Fe-B alloys. On the whole, the wear rate of the Fe94.3B5.7 is lower than Fe67B33 and Fe75B25.

References

References
1.
Taktak
,
S.
, 2006,
“Tribological Behaviour of Borided Bearing Steels at Elevated Temperatures,”
Appl. Surf. Sci.
,
201
(
6
), pp.
2230
2239
.
2.
Sen
,
S.
,
Ozbek
,
I.
,
Sen
,
U.
, and
Bindal
,
C.
, 2001,
“Mechanical Behavior of Borides Formed on Borided Cold Work Tool Steel,”
Surf. Coat. Tech.
,
135
(
2–3
), pp.
173
177
.
3.
Pertek
,
A.
, and
Kulka
,
M.
, 2003,
“Characterization of Single Tracks After Laser Surface Modification of Borided 41Cr4 Steel,”
Appl. Surf. Sci.
,
205
(
1–4
), pp.
137
142
.
4.
Iakovou
,
R.
,
Bourithis
,
L.
, and
Papadimitriou
,
G.
, 2002,
“Synthesis of Boride Coatings on Steel Using Plasma Transferred Arc (PTA) Process and its Wear Performance,”
Wear
,
252
(
11–12
), pp.
1007
1015
.
5.
Martini
,
C.
,
Palombarini
,
G.
,
Poli
,
G.
, and
Prandstraller
,
D.
, 2004,
“Sliding and Abrasive Wear Behaviour of Boride Coatings,”
Wear
,
256
(
6
), pp.
608
613
.
6.
Galvanetto
,
E.
,
Borgioli
,
F.
,
Bacci
,
T.
, and
Pradelli
,
G.
, 2006,
“Wear Behaviour of Iron Boride Coatings Produced by VPS Technique on Carbon Steels,”
Wear
,
260
(
7–8
), pp.
825
831
.
7.
Bourithis
,
L.
,
Paparfthymiou
,
S.
, and
Papadimitriou
,
G.
, 2002,
“Plasma Transferred Boriding of a Low Carbon Steel: Microstructure and Wear Properties,”
Appl. Surf. Sci.
,
200
(
1–4
), pp.
203
218
.
8.
Fu
,
L.
,
Yang
,
J.
,
Bi
,
L.
, and
Liu
,
M.
, 2009,
“Enhanced Ductility of Dendrite-Ultrafine Eutectic Composite Fe3B Alloy Prepared by a Self-Propagating High Temperature Synthesis,”
Adv. Eng. Mater.
,
11
(
3
), pp.
194
197
.
9.
Kulka
,
M.
, and
Pertek
,
A.
, 2003,
“Microstructure and Properties of Borided 41Cr4 Steel After Laser Surface Modification with Re-melting,”
Appl. Surf. Sci.
,
214
(
1–4
), pp.
278
288
.
10.
Jahanmir
,
S.
, 1990,
Friction and Wear of Ceramics
,
Marcel Dekker
,
New York.
11.
Fu
,
L.
,
Yang
,
J.
,
Bi
,
L.
,
Zhu
,
Y.
, and
Liu
,
M.
, 2009,
“Dry-Sliding Tribological Properties of Nano-eutectic Fe83B17 Alloy,”
Tribol. Lett.
,
34
(
3
), pp.
185
191
.
12.
Toru
,
Y.
, and
Peter
,
H.
, 2008,
“Analysis of XPS Spectra of Fe2+ and Fe3+ Ions in Oxide Materials,”
Appl. Surf. Sci.
,
254
(
8
), pp.
2441
2449
.
13.
La
,
Q.
,
Ma
,
Q.
,
Zhu
,
T.
,
Yang
,
J.
,
Liu
,
M.
,
Xue
,
J.
, and
Valiev
,
Z.
, 2005,
“Dry-Sliding Tribological Properties of Ultrafinegrained Ti Prepared by Severe Plastic Deformation,”
Acta Mater.
,
53
(
19
), pp.
5167
5173
.
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