|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advances in Multi-Principal Elements Alloys X
||A comparison of the sliding wear of carbon-doped Fe40.4Ni11.3Mn34.8Al7.5Cr6 and CoCrFeMnNi high entropy alloys with 316 stainless steel at 293 K and cryogenic temperatures.
||Ian Baker, F.E. Kennedy, Y. Ye, J. D. Bonilla Toledo, R.R. White, R.L. Barry, X. Guo, S.P. Ringer, H. Chen, W. Zhang, Y. Liu, M. Song
|On-Site Speaker (Planned)
We have recently designed and built a cryogenic pin-on-disk wear tester for performing sliding wear tests either dry at ~110 K or under liquid nitrogen at ~77 K. This presentation will compare the results of wear tests of the f.c.c. high entropy alloys carbon-doped Fe40.4Ni11.3Mn34.8Al7.5Cr6 and equiatomic CoCrFeMnNi with those for 316 stainless steel. Tests were performed against zirconia in both ambient air and argon, and dry and in liquid nitrogen at cryogenic temperatures. The effect of different sliding velocities will also be described. After wear testing, the zirconia disk was examined using optical profilometry, whereas the worn pins and wear debris were characterized using profilometry, scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectrometry, electron backscattered diffraction, X-ray photoelectron spectroscopy, and atom probe tomography. The results are explained in terms of the oxidation behavior and the contact temperature. Work supported by National Science Foundation grant 1758924.
||Mechanical Properties, Characterization, High-Entropy Alloys