Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7001222 | Tribology International | 2019 | 4 Pages |
Abstract
Extreme pressure lubrication is a great challenge for many mechanical systems like bearings and gears. Here, an novel functional material based on Ga-based liquid metal has been applied to successfully lubricate the steel-ceramic sliding pairs at extreme high load (1500â¯N), which significantly outperforms other liquid lubricants like oil and ionic liquid. Ga-based liquid metal provides a low friction coefficient (0.11-0.23) and wear rate (10â8-10â7 mm3/Nm) of AISI 52100 steel disc (C0.98-1.10Mn0.25-0.45Pâ¤0.025Sâ¤0.025Si0.15-0.30Cr1.30-1.60Fe96.5-97.32, mass %; American Iron and Steel Institute standard) when it slides against Si3N4 balls over a load range 100-1500â¯N. To elucidating these interesting results, the lubrication mechanisms of Ga-based liquid metal are studied by tribo-surface analysis.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Jun Cheng, Yuan Yu, Jie Guo, Shuai Wang, Shengyu Zhu, Qian Ye, Jun Yang, Weimin Liu,