J. Korean Soc. Tribol. Lubr. Eng. Vol. 31, No. 00, January 2015, pp. 000~000
The Korean Society of Tribologists & Lubrication Engineers
eISSN 2287-4666·pISSN 1229-4845
http://journal.kstle.or.kr
DOI http://dx.doi.org/10.9725/kstle.2015.31.0.000
A Study on the Lubrication Characteristics of Carbon Nanotubes (Times New
Roman 15pt, center aligned)
Minsoo Kim1, SeungJae Kim1 and GyeMin Park2† (Times New Roman 12pt)
1
Graduate School, Dept. of Mechanical Engineering, HanGook University (Times New Roman 10pt, Italic)
2
Dept. of Mechanical Engineering, HanGook University
( Received 000 0, 2015 ; Revised 000 0, 2015 ; Accepted 000 0, 2015 )
Abstract : This paper presents an experimental investigation of the mechanisms of pit elimination in strip
drawing and rolling of stainless steel strips. Strip drawing tests with artificial indents confirm the role of
micro-plasto-hydrodynamic lubrication (MPHL) in allowing pits to be reduced in size and depth. The
similarity of results for two oils, which differ in viscosity by a factor of 10, is attributed to the fact that oil is
drawn out of the pits rather easily, so that the behavior tends to the unlubricated case. Similar behavior is
observed for strip drawing of shot blast white hot band. For much smoother bright anneal strip, it is suggested
that the presence of an oil film in the unpitted region prevents generation of pressure differences between the
pits and the unpitted regions. A comparison of strip drawn and cold-rolled stainless steel samples show that
the change in pit area and Rq roughness varies with overall reduction in a remarkably similar way. The reason
for such similar behavior is attributed to the absence of hydrodynamic action in preventing pit elimination,
albeit for opposite reasons. The similar rate of pit evolution in both cases confirms the usefulness of the strip
drawing rig as a tool to model the change of surface topography during rolling, as long as care is taken in
matching the regimes of lubrication. (more than 200 words, max. 250 words, Times New Roman 10pt)
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Keywords: abrasive wear, boundary lubrication, contact angle, rolling contact, sliding friction. Five or fewer
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†
Corresponding author.
Tel.: +82-00-0000-0000, Fax.: +82-00-0000-0000
E-mail address: jkstle@hangook.ac.kr
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Material properties
Value
Young’s modulus (GPa)
Poisson’s ratio
210
0.3
Yield strength (MPa)
Ultimate tensile strength (MPa)
433
460
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References
[1] Perry, S. S., Tysoe, W. T., “Frontiers of fundamental
tribological research”, Tribol. Lett., Vol.19, No.3,
pp.151-161, 2005.
[2] Yang, W. Y., Yang, J. C., Sung, I.-H., “A Study of
the Effects of Pressure Velocity and Fluid Viscosity in
Abrasive Machining Process”, J. Korean Soc. Tribol.
Lubr. Eng., Vol.27, No.1, pp.7-12, 2011.
[3] Sajti, C.L., Georgio, S., Khodorkovsky, V., Marine,
W., “New Nanohybrid Materials for Biophotonics”,
Appl.
Phys.
A:
Mater.
Sci.
Process.,
doi:10.1007/s00339-007-4137-z, 2007.
[4] Barwell, F. T., Lingard, S., “The Thermal
Equilibrium of Plain Journal Bearings,” Proc. LeedsLyon Conference “Thermal Effects in Tribology”,
Lyon, France, September 1979.
[5] Dowson, D., History of Tribology, 2nd Edition, Chap.
8, pp.129, Professional Engineering Publishing Ltd.,
London, UK, 1998. (ISBN 1-86058-070-X)
[6] Society of Tribologists and Lubrication Engineers,
http://www.stle.org, Accessed February 16, 2007.
< Guidelines for writing reference list >
▣ The list of references should be provided in order of
citation in the body with serial number written in [ ]
(bracket), and the content must be in English. In the case
of Korean references as well, the list of references must
be in English.
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according to the format of the example shown below.
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name of the periodical should be indicated according to
the rules for abbreviations of the ISO international
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(Refer
to:
http://cassi.cas.org/
or
http://www.issn.org/2-22661-LTWA-online.php ).
▣ When citing papers published in the Journal of
KSTLE, the abbreviation of the journal title follows
the ISO’s rules for journal abbreviation and thus be
written as “J. Korean Soc. Tribol. Lubr. Eng.”
▣ When citing online documents or information in
websites, the date of citation must be written.
▣ Name of journals, title of doctoral thesis, title of
books, title of patents are written in italic.
1. Journal article
Perry, S. S., Tysoe, W. T., “Frontiers of fundamental
tribological research”, Tribol. Lett., Vol.19, No.3,
pp.151-161, 2005.
(The papers with DOI marks can be written as below )
Sajti, C.L., Georgio, S., Khodorkovsky, V., Marine, W.,
“New Nanohybrid Materials for Biophotonics”, Appl.
Phys. A: Mater. Sci. Process., doi:10.1007/s00339-0074137-z, 2007.
2. Proceedings
Barwell, F. T., Lingard, S., “The Thermal Equilibrium of
Plain Journal Bearings,” Proc. Leeds-Lyon Conference
“Thermal Effects in Tribology”, Lyon, France,
September 1979.
3. Book
Dowson, D., History of Tribology, 2nd Edition, Chap. 8,
pp.129, Professional Engineering Publishing Ltd.,
London, UK, 1998. (ISBN 1-86058-070-X)
4. Book chapter
Broy, M., Software Engineering - From Auxiliary to Key
Technologies. In: Broy, M., Denert, E. (eds.) Software
Pioneers, pp. 10–13. Springer, Heidelberg, 2002. (ISBN:
3-540-43081-4)
5. University thesis
Larsson, R., Elastohydrodynamic Lubrication under
Non-Steady Conditions, Doctoral Thesis, Division of
Machine Elements, Luleå University of Technology,
Sweden, 1996.
6. Patent
Arthur, N. J., Lubrication system, Gen Motors Corp., US
Patent No. 2,840,186, 1954.
7. Technical standard
D2714-94, “Standard Test Method for Calibration and
Operation of the Falex Block-on-Ring Friction and Wear
Testing Machine,” ASTM International, West
Conshohocken, PA, 2003.
8. Other technical manual, brochure
[1] ExxonMobil Chemical Synthetics, “Synthetic
Lubricant Basestocks”, P.O. Box 3272, Houston, TX
77253, 2004.
[1] ANSYS Mechanical User Guide, Release 14.5,
ANSYS, Inc., Southpointe, 275 Technology Drive,
Canonsburg, PA 15317, 2012.
9. Online document, website
[1] Sigma Aldrich, Retrieved May 13, 2005, from
http://www.sigmaaldrich.com/catalog/product/fluka/
94131?lang=ko&region=KR.
[1] Cartwright, J., Big stars have weather too, IOP
Publishing Physics Web, http://physicsweb.org/articles /
news /11/6/16/1, Accessed June 26, 2007.
[1] Society of Tribologists and Lubrication Engineers,
http://www.stle.org, Accessed February 16, 2007.