About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Chemistry and Physics of Interfaces
|
Presentation Title |
J-16: Molecular Dynamics Study on Tribochemical Reaction Mechanism of Zinc Dialkyl Dithiophosphate Lubricant Additives at Steel Sliding Interface |
Author(s) |
Takuya Tozawa, Kento Hosono, Arisa Chiba, Ryutaro Kudo, Mizuho Yokoi, Masayuki Kawaura, Yixin Su, Shogo Fukushima, Yuta Asano, Yusuke Ootani, Nobuki Ozawa, Momoji Kubo |
On-Site Speaker (Planned) |
Takuya Tozawa |
Abstract Scope |
Wear of machine parts can cause serious accidents, thus the development of wear resistance tribological system is strongly required. Zinc dialkyl dithiophosphate (ZDDP) is a common additive for industrial lubricants and widely used in automotive engine oils to improve the wear resistance of sliding parts. At the sliding interface of steel engine parts, tribochemical reaction produces a zinc phosphate film on the surface from ZDDP, enhancing wear resistance of engine parts. For the further improvement of wear resistance, elucidation of the zinc phosphate film formation mechanism is demanded. However, it is difficult to analyze the atomic-scale tribochemical reactions in experiments, thus the detailed mechanism is still in debate. Therefore, in this study, we performed reactive molecular dynamics simulation to clarify the formation mechanism of the zinc phosphate film at the sliding interface of steel. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Thin Films and Interfaces, Mechanical Properties |