Abstract
Multi-principal element alloys have the potential to show excellent passivation behavior. However, the detailed compositional and crystal structure design of these alloys requires a high-throughput strategy. We used combinatorial thin-film libraries of single-phase (FeCoNi)1-x-yCrxAly alloys and compared their passivation behaviors to corresponding bulk alloys. Our results demonstrate that the detailed passivation behaviors of thin-films and bulk alloys are different which is related to both nanoscale porosity within the thin-films and grain boundary dissolution. Nevertheless, we found that comparisons made among suitably designed sets of thin-film alloys can be used to determine the best corrosion performing bulk alloy composition.
| Original language | English |
|---|---|
| Article number | 112261 |
| Journal | Corrosion Science |
| Volume | 236 |
| DOIs | |
| State | Published - Aug 1 2024 |
Funding
The authors gratefully acknowledge partial funding from the Office of Naval Research (ONR) through the Multidisciplinary University Research Initiative (MURI) program, N00014-20-1-2368. The authors also acknowledge the University of Virginia Nanoscale Materials Characterization Facility, the Eyring Materials Center at Arizona State University, and the Johns Hopkins University Materials Characterization and Processing Center. J. Rajagopalan acknowledges support from the National Science Foundation Grant 2223317 (Metals and Metallic Nanostructures program). Use of the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract no. DE-AC02-76SF00515. Materials processing was performed at the Platform for the Accelerated Realization, Analysis, and Discovery of Interface Materials (PARADIM at JHU), a National Science Foundation Materials Innovation Platform under Grant no. NSF DMR-2039380. The authors thank J. Hattrick-Simpers (University of Toronto) for his assistance in carrying out these experiments and A Mehta (SLAC), N Johnson (SLAC), and N Patra (SLAC) for collecting the synchrotron diffraction data. The authors gratefully acknowledge partial funding from the Office of Naval Research (ONR) through the Multidisciplinary University Research Initiative (MURI) program, N00014-20-1-2368. The authors also acknowledge the University of Virginia Nanoscale Materials Characterization Facility, the Eyring Materials Center at Arizona State University, and the Johns Hopkins University Materials Characterization and Processing Center. J. Rajagopalan acknowledges support from the National Science Foundation grant 2223317 (Metals and Metallic Nanostructures program). Use of the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-76SF00515. Materials processing was performed at the Platform for the Accelerated Realization, Analysis, and Discovery of Interface Materials (PARADIM at JHU), a National Science Foundation Materials Innovation Platform under grant number NSF DMR-2039380. The authors thank J. Hattrick-Simpers (University of Toronto) for his assistance in carrying out these experiments and A Mehta (SLAC), N Johnson (SLAC), and N Patra (SLAC) for collecting the synchrotron diffraction data.
Keywords
- Acid corrosion
- Corrosion resistance
- Intergranular corrosion
- Passivation
- Surface passivation