Self-lubrication mechanism via the in-situ formed lubricious oxide tribofilm

Aizawa, T., Mitsuo, A., Yamamoto, S., Sumitomo, T. and Muraishi, S. (2005). Self-lubrication mechanism via the in-situ formed lubricious oxide tribofilm. In: Wear. Proceedings of: 15th International Conference on Wear of Materials. WOM 2005: 15th International Conference on Wear of Materials, San Diego, CA, U.S.A., (708-718). 24-28 April 2005. doi:10.1016/j.wear.2005.02.025


Author Aizawa, T.
Mitsuo, A.
Yamamoto, S.
Sumitomo, T.
Muraishi, S.
Title of paper Self-lubrication mechanism via the in-situ formed lubricious oxide tribofilm
Conference name WOM 2005: 15th International Conference on Wear of Materials
Conference location San Diego, CA, U.S.A.
Conference dates 24-28 April 2005
Proceedings title Wear. Proceedings of: 15th International Conference on Wear of Materials   Check publisher's open access policy
Journal name Wear   Check publisher's open access policy
Place of Publication Amsterdam, Netherlands
Publisher Elsevier BV
Publication Year 2005
Sub-type Fully published paper
DOI 10.1016/j.wear.2005.02.025
ISSN 0043-1648
1873-2577
Volume 259
Issue 1-6
Start page 708
End page 718
Total pages 11
Language eng
Formatted Abstract/Summary
In situ formation of tribofilms is indispensable to reduce the wear volume and friction coefficient in dry. These tribofilms must be robust even in working at high normal pressure and sliding velocity between work materials and tools. Although TiN and TiC ceramic coating films are frequently utilized as a protective coating for dies and cutting tools, they often suffer from severe, adhesive wearing in dry forming and machining. Chlorine ion implantation assists lubricious oxide film to be in situ formed during wearing. At the presence of chlorine atoms in the inside of TiN or TiC films, in situ formation of lubricous intermediate titanium oxides with TiO and TinO2n−1 is sustained to preserve low frictional and wearing state. The fundamental process of this self-lubrication mechanism on the tribofilms, is discussed together with microscopic analysis and observation of worn surface and wear debris. The self-lubrication process works well in dry machining in order to reduce the flank wear of cutting tools even in the higher cutting speed range up to 500 m/min.
© 2005 Elsevier B.V. All rights reserved.
Subjects 0912 Materials Engineering
0913 Mechanical Engineering
Keyword Self-lubrication mechanism
Tribofilms
In situ formation
Titanium intermediate
Lubricious oxides
Chlorine implantation
Q-Index Code EX
Additional Notes Presented during "Session 10C - Lubricated Wear". Published as "Self-lubrication mechanism via the in situ formed lubricious oxide tribofilm"

 
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