润滑科技信息平台

Microscopic Insights into Wetting-Like Spatiotemporal Evolution of Spontaneous Ice and Its Tribological Behavior

出版日期: 2025-07-27

DOI: https://doi.org/10.1016/j.triboint.2025.111040

The lubrication process of ice has been an elusive problem for centuries. Here, we report a wetting-like state before the pressure melting in ice friction processes through molecular dynamics simulations of spontaneous ice. Ice wetting, exhibiting spatiotemporal evolution, is influenced by the wettability of the solid plate, ice temperature, and compression method. Hot ice (270 K) will expand, wet, and reconstruct to form a quasi-liquid layer when the solid plate is close to ice. Cold (200 K) ice only expands and exhibits elasticity that satisfies Hooke's law when adsorbed and compressed on the plate. Ice wetting and low friction coefficient (<0.01) occur under the same conditions, which indicates that ice wetting is a precursor condition for ice slip.

Influence of Oil Degradation on Power Losses and Thermal Behavior of a Gear Transmission Test Rig

Pub Date: 2025-07-27 DOI: https://doi.org/10.1016/j.triboint.2025.111040

[Büşra DURAN, Jérôme CAVORET, Yasser DIAB, David PHILIPPON, Fabrice VILLE, Arnaud RUELLAN, Frank BERENS]

Friction characteristics of piston pin made of carbon/carbon composite under starved lubrication

Pub Date: 2025-07-27 DOI: https://doi.org/10.1016/j.triboint.2025.111040

[Hongyu Fu Corresponding Author, Hao Zhang Corresponding Author, Yuan Shi Corresponding Author, Penghao Niu Corresponding Author, Oleksandr Stelmakh Corresponding Author, Zhuogang Wang Corresponding Author]

Effect of Normalizing Treatment on Wear Characteristics of U75V Flash-Butt Welded Joints in Coastal Environment

Pub Date: 2025-07-27 DOI: https://doi.org/10.1016/j.triboint.2025.111040

[Xi Zhang Corresponding Author, Tingting Liao Corresponding Author, Fei Chen Corresponding Author, Junyang Ye Corresponding Author, Zhide Song Corresponding Author, Lin He Corresponding Author, Jiawei Li Corresponding Author, Chenyang Zhu Corresponding Author, Haoxiang Xu Corresponding Author, Biao Guo Corresponding Author, Qibing Lv Corresponding Author, Guoqing Gou Corresponding Author]