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)
1Graduate School, Dept. of Mechanical Engineering, HanGook University(Times New Roman 10pt, Italic)
2Dept. of Mechanical Engineering, HanGook University
( Received000 0, 2017; Revised 000 0, 2017; Accepted 000 0, 2017)
Abstract :This paper presents an experimental investigation of the mechanisms of pit elimination instrip drawing and rolling of stainless steel strips. Strip drawing tests with artificial indentsconfirm the role of micro-plasto-hydrodynamic lubrication (MPHL) in allowing pitsto be reduced in size and depth. The similarity of results for two oils, which differ inviscosity by a factor of 10, is attributed to the fact that oil is drawn out of the pits rathereasily, so that the behavior tends to the unlubricated case. Similar behavior is observedfor strip drawing of shot blast white hot band. For much smoother bright anneal strip, itis suggested that the presence of an oil film in the unpitted region prevents generation ofpressure differences between the pits and the unpitted regions. A comparison of stripdrawnand cold-rolled stainless steel samples show that the change in pit area and Rqroughness varies with overall reduction in a remarkably similar way. The reason for suchsimilar behavior is attributed to the absence of hydrodynamic action in preventing pitelimination, 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 keywords of particular importance used in the paper should be listed in the order of English alphabet.
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†Corresponding author.
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M / : / Mass (Kg)R / : / Inner radius (m)
V / : / Linear velocity (m/s)
θ / : / Angle of grooves (deg.)
ω / : / Rotational speed (rpm)
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Write the content here. The paper shall not have been published in another journal related to the field of tribology. It should make a scientific and technological contribution to the field and demonstrate originality and reliability. Technological terms used in the paper should be in line with the terms in the “Equipment and Tribology Glossary” published by the Society.
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Material properties / ValueYoung’s modulus (GPa) / 210
Poisson’s ratio / 0.3
Yield strength (MPa) / 433
Ultimate tensile strength (MPa) / 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. Leeds-Lyon 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, 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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▣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.”
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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/s00339-007-4137-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 94131?lang=ko®ion=KR.
[1] Cartwright, J., Big stars have weather too, IOP Publishing Physics Web, Accessed June 26, 2007.
[1] Society of Tribologists and Lubrication Engineers, Accessed February 16, 2007.