Effect of lattice defects on tribological behavior for high friction coefficient under TCP added PAO lubrication in nanostructured steels

Kazuki Tonotsuka, Yoshikazu Todaka, Nozomu Adachi, Motohiro Horii, Kenichi Toda, Masatoshi Mitsuhara, Masumi Iwasaki, Yoshinori Shiihara, Yoshitaka Umeno, Minoru Nishida, Hideharu Nakashima

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Synopsis: The effect of lattice defects on the tribological behavior for high friction coefficient under tricresyl phosphate (TCP) added poly-α-olefin (PAO) lubrication was investigated in the nanostructured steels produced by heavy plastic deformation processes. In the surface-nanostructured SUJ2 bearing steel, the tribological behavior with high friction coefficient was observed in the ball-on-disk tests in comparison with the non-deformed steel. In addition, the similar phenomenon was observed in the ultra-low carbon (ULC) steel with high-density of lattice defects (grain boundary, dislocation and so on). By increasing the density of lattice defects, higher friction coefficient was shown. The reason of the tribo-logical behavior with high friction coefficient seems that the compound film of Fe-O-P system formed in the ball-on-disk test was worn.

Original languageEnglish
Pages (from-to)160-167
Number of pages8
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume105
Issue number2
DOIs
Publication statusPublished - Feb 2019

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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