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.
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October 2011
Research Papers
Improved Wear Resistance of Dendrite Composite Eutectic Fe-B Alloy
Licai Fu,
Licai Fu
State Key Laboratory of Solid Lubrication,
Lanzhou Institute of Chemical Physics
, Chinese Academy of Sciences, Lanzhou 730000, PR China;
Department of Chemical and Materials Engineering, University of Alberta, Edmonton T6G2V4,
Canada
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Weimin Liu
Weimin Liu
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000,
PR China
Search for other works by this author on:
Licai Fu
State Key Laboratory of Solid Lubrication,
Lanzhou Institute of Chemical Physics
, Chinese Academy of Sciences, Lanzhou 730000, PR China;
Department of Chemical and Materials Engineering, University of Alberta, Edmonton T6G2V4,
Canada
e-mail:
Weimin Liu
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000,
PR China
J. Tribol. Oct 2011, 133(4): 041602 (5 pages)
Published Online: October 10, 2011
Article history
Received:
November 2, 2010
Revised:
September 6, 2011
Online:
October 10, 2011
Published:
October 10, 2011
Citation
Fu, L., Yang, J., Bi, Q., and Liu, W. (October 10, 2011). "Improved Wear Resistance of Dendrite Composite Eutectic Fe-B Alloy." ASME. J. Tribol. October 2011; 133(4): 041602. https://doi.org/10.1115/1.4005067
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