Wear of Nanostructured FeNiMnAl

The aim of this project is to determine how the dry sliding wear behavior and wear mechanisms of a range of recently-discovered, very high strength, nanostructured, b.c.c.-based FeNiMnAl spinodal alloys vary with changes in the microstructure (spinodal wavelength, phase composition, interphase interface coherency) produced by ageing. Pin-on-disc wear testing are being performed at a range of speeds in air, inert atmosphere and oxygen. These are aiding in understanding the effects of local heating and of oxidation, including the role played by third bodies (wear debris) in the wear process. A range of state-of-the-art techniques is being used to characterize the pre- and post-wear specimens, and the observed wear behavior is being modeled.

Funded by the National Science Foundation, Division of Civil, Mechanical and Manufacturing Innovation