Novel Cr/Si-Slurry Diffusion Coatings for High Temperatures
Michael Kerbstadt, Emma Marie Hamilton White, Mathias Christian Galetz · 2023
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Description
Michael Kerbstadt, Emma Marie Hamilton White, and Mathias Christian Galetz present a new coating for alloys used at high heat, in two thousand twenty-three. Coatings rich in chromium and silicon protect superalloys from oxidation. Chromium's high melting point had forced makers to use a complex packing process rather than a simple slurry.
Adding silicon to the slurry lowers the melting point, so a liquid phase forms during heat treatment. On two nickel superalloys, the process laid down layers rich in both elements. After a thousand hours at high heat in air, coated samples gained far less weight than bare ones. A silicon-rich film under the outer scale blocked oxygen, and no internal oxidation appeared.
Catalog record
| CREATOR | Michael Kerbstadt, Emma Marie Hamilton White, Mathias Christian Galetz |
|---|---|
| YEAR | 2023 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 31 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |