Aluminide Coating (IMAGE)

DOE/Pacific Northwest National Laboratory

Aluminide Coating

Caption

Researchers at Pacific Northwest National Laboratory have developed a ceramic-based aluminide coating that protects steel and superalloys against corrosion, oxidation and other adverse chemical reactions. The coating is economical, easy to apply and does not chip off. An electron micrograph of a coated 316 stainless steel coupon in cross-section shows the diffusion-reaction layers. Starting from the left hand side of the photo, which is the surface of the steel the following layers are visible: 1) Aluminum oxide outer layer (not visible at lower magnifications) 2) FeAl layer, 3) Fe3Al inner layer, and 4) 316SS.

Credit

Courtesy of Pacific Northwest National Laboratory.

Usage Restrictions

Image courtesy of Pacific Northwest National Laboratory. Use of image shall not claim any expressed or implied affiliation with, or endorsement by, Battelle Memorial Institute, Pacific Northwest National Laboratory or the U.S. Department of Energy.

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