Oxidation and Corrosion
Oxidation is the primary way a lubricant degrades over time from normal use. As oil is used in a machine over time, the oxidation process occurs, typically starting with the degradation of antioxidant additives. Several ASTM methods may be used to determine or evaluate the oxidation stability of an oil, such RPVOT D2272, D943, D4310, FTIR D7414, D4742 the TFOUT, Thin-Film Oxygen Uptake Test and D942 oxidation stability for greases. In addition to these standard test methods, Savant Labs can combine customized Tannas Quantum® in-test sampling and FTIR or GC/MS to monitor the depletion of anti-oxidants in oil, providing powerful information on the life span of these lubricants.
Corrosion Inhibitors are important components of finished lubricants that protect metal components from corrosion. The best way to stop corrosion is not to allow the metal to come in contact with water, oxygen, or acid. Several ASTM methods may be used to determine a lubricant’s ability to resist corrosion, including D665 Rust Prevention, D6594 High-Temperature Bench Corrosion Test, D1748 Exposure in a humidity cabinet, and D6557 Ball Rust, a GF-6 specification test. The Savant Technical Team can advise which test method is best for your application and situation.
For more information on how Savant Labs can assist with the challenges of oxidation stability and corrosion, contact us.