Grease plays important roles in reducing frictional loss and providing protection of rubbing surfaces. In this research, we investigated the effects of -zirconium phosphate nanoparticles as additives in grease on the galling behavior of a pair of steels (4130 against P530). The results showed that the addition of 0.5 wt% of nanoparticles in petroleum jelly could reduce the friction for 10% and the area being galled for 80%. In terms of particle sizes, the 1 sized particles have profound influence in galling reduction. This is due to the increased contribution of van der Waals forces in the stacked layers of those particles. Under shear, those particles are exfoliated, resulting in low friction and more surface coverage to protect surfaces from galling.
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March 2019
Research-Article
Anti-Galling Effects of α-Zirconium Phosphate Nanoparticles as Grease Additives
Yan Chen,
Yan Chen
Department of Materials Science and
Engineering,
Texas A&M University,
College Station, TX 77843
e-mail: yanchen876@tamu.edu
Engineering,
Texas A&M University,
College Station, TX 77843
e-mail: yanchen876@tamu.edu
Search for other works by this author on:
Abraham Clearfield,
Abraham Clearfield
Department of Chemistry;
Department of Materials Science
and Engineering,
Texas A&M University,
College Station, TX 77843
e-mail: clearfield@chem.tamu.edu
Department of Materials Science
and Engineering,
Texas A&M University,
College Station, TX 77843
e-mail: clearfield@chem.tamu.edu
Search for other works by this author on:
Hong Liang
Hong Liang
Department of Mechanical Engineering;
Department of Materials Science
and Engineering,
Texas A&M University,
College Station, TX 77840
e-mail: hliang@tamu.edu
Department of Materials Science
and Engineering,
Texas A&M University,
College Station, TX 77840
e-mail: hliang@tamu.edu
Search for other works by this author on:
Yan Chen
Department of Materials Science and
Engineering,
Texas A&M University,
College Station, TX 77843
e-mail: yanchen876@tamu.edu
Engineering,
Texas A&M University,
College Station, TX 77843
e-mail: yanchen876@tamu.edu
Xuezhen Wang
Abraham Clearfield
Department of Chemistry;
Department of Materials Science
and Engineering,
Texas A&M University,
College Station, TX 77843
e-mail: clearfield@chem.tamu.edu
Department of Materials Science
and Engineering,
Texas A&M University,
College Station, TX 77843
e-mail: clearfield@chem.tamu.edu
Hong Liang
Department of Mechanical Engineering;
Department of Materials Science
and Engineering,
Texas A&M University,
College Station, TX 77840
e-mail: hliang@tamu.edu
Department of Materials Science
and Engineering,
Texas A&M University,
College Station, TX 77840
e-mail: hliang@tamu.edu
1Corresponding author.
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received July 22, 2018; final manuscript received September 17, 2018; published online November 1, 2018. Assoc. Editor: Min Zou.
J. Tribol. Mar 2019, 141(3): 031801 (6 pages)
Published Online: November 1, 2018
Article history
Received:
July 22, 2018
Revised:
September 17, 2018
Citation
Chen, Y., Wang, X., Clearfield, A., and Liang, H. (November 1, 2018). "Anti-Galling Effects of α-Zirconium Phosphate Nanoparticles as Grease Additives." ASME. J. Tribol. March 2019; 141(3): 031801. https://doi.org/10.1115/1.4041538
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