|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Environmental Degradation of Multiple Principal Component Materials
||The Tribocorrosion Behaviors of Al0.1CrCoFeNi Multi-principal Element Alloys in Different pH Conditions
||Jia Chen, Wenbo Wang, Wenjun Cai
|On-Site Speaker (Planned)
Multi-principal element alloys (MPEAs) have grained increasing interests lately due to their exceptional mechanical, tribological and corrosion properties. The combination of these properties makes them ideal candidates for various applications under extreme conditions where surface stress and corrosive environments coexist. In the present study, the effects of pH on the tribocorrosion behavior of Al0.1CrCoFeNi MPEA was studied in simulated seawater under room temperature. The microstructure of as received and tribocorroded samples were characterized by scanning electron microscopy and x-ray diffraction. The element distribution and chemical state in worn and unworn areas were studied using energy dispersive x-ray spectroscopy and x-ray photoelectron spectroscopy. The cross-sectional worn area was characterized by transmission electron microscopy. It was shown that this MPEA has the lowest corrosion resistance in alkaline solution, and the material loss increased with increasing pH, which is mainly dependent on the pH-dependent corrosion behavior of the alloy.
||High-Entropy Alloys, Environmental Effects, Characterization