Iron aluminide coating on Al by mechanical alloying

Abstract

The formation of iron aluminide coating on an Al surface by mechanical alloying with Al-Fe powder of various compositions was investigated. When the amount of Fe powder in the starting powder is .50 at.-%, an FeAl containing coating layer is formed. As the mass ratio of the balls and substrate to the powder in the pot is small, the formation of FeAl phase is achieved in a short time. The obtained FeAl containing coating layer has high hardness and fracture toughness. When the amount of Fe powder in starting powder is ,50 at.-%, a coating layer consisting of FeAl and Fe 2 Al 5 is formed. The coexistence of Fe 2 Al 5 in the coating layer causes the coating layer to be more brittle.

Fabrication of Fe‒Al Coatings with Micro/Nanostructures for Antifouling Applications

“…According to the XRD results of the Fe-Al electrode shown in Figure 7b, only Fe and Al phases exist, without the Fe-Al phase. The reason could be that the sintering conditions of the Fe-Al electrode described in Section 2.1 cannot achieve the formation conditions of Fe-Al composition [25,26], and the powders of Fe and Al only adhered in the Fe-Al electrode. The XRD results of Fe-Al MNS samples #1, #2, and #3 are shown in Figure 7c.…”

An insight into formation of nanostructured coatings on metallic substrates by planetary ball milling

“…One of the most common tools for MC is planetary ball mills. They have been largely used for the deposition of various metallic [3][4][5] and inter-metallic [6][7][8] coatings. Milling balls [9][10][11], sidewall of the container [12][13][14] and a small sample loaded into the vial [6,15] have been investigated as different target substrates.…”

Al2O3 reinforced Fe–Al composite coatings prepared by double glow discharge technique

“…1 Unfortunately, the high intrinsic brittleness of aluminides limits their usage as a bulk material. Thus, the aluminides are normally used as coatings for their industrial applications.…”