Conductive lubricants to prevent hydrogen assisted rolling contact fatigue
Year: 2025
Type: article
Abstract: The effectiveness of conductive lubricants, particularly ionic liquids (ILs), in mitigating premature failure such as hydrogen-assisted rolling contact fatigue (HARCF) in rolling-contact bearings is investigated. The degradation of lubricants under tribological load leads to hydrogen generation, contributing to HARCF. The addition of ILs to lubricants significantly enhances their electrical conductivity, thereby preventing premature failure and extending bearing lifespan. Experimental investigations, including linear-oscillation sliding and rolling-contact fatigue tests, confirm the superior performance of a lubricant containing 3.0 vol% Trihexyltetradecylphosphonium-bis(trifluoromethylsulfonyl)-imide [P66614][BTA]. These findings provide valuable insights into enhancing bearing reliability in industrial applications.
Source: Engineering Failure Analysis
Authors: Dominik Kürten, Iyas Khader, Tobias Amann, Felix Gatti, Maximilian Baur, Natalie Oberle, Stefan Grundei, Jörg Franke, Andreas Kailer
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,820
OpenAlex ID: W4411395854