Aluminide coating on Mar-M246 nickel superalloy by halide activated pack cementation (HAPC)

Recent Advances in the Deposition of Aluminide Coatings on Nickel-Based Superalloys: A Synthetic Review (2019–2023)

“…Cojocaru et al [6] used pack cementation to deposit an NiAl coating on Inconel 718. The formed NiAl layer was well adhered to the substrate material and was characterized by improved hardness of 40HRC due to the precipitation of the δ-Ni 3 Nb-hardening phase inside the grains of the solid solution γ. Gloria et al [7] presented optimized halide-activated pack cementation technology for the Mar-M246 alloy, the effectiveness of which was assessed through hightemperature oxidation tests in air up to 1000 • C. The coated nickel-based superalloy exhibited superior oxidation resistance as compared to its wrought state. Recently, Morgiel et al [8] proposed a novel pack cementation approach during which the NiAl coating system was modified with rare earth elements.…”

“…Although all of them were used to deposit NiAl coatings to improve some functional properties of the base materials, one can expose different approaches leading to the same findings. It could be noticed that PC methods are mainly used to deposit pure NiAl or β-NiAl coatings [6,7,[12][13][14][15][16][17]23,24]. Some reports analyze the addition of different oxides [8,9] and Zr [18][19][20].…”

“…A summary of the pack cementation-related research[6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24].…”

Elemental Influence on Oxidation Behaviour of Cantor‐Based and Refractory High Entropy Alloys: A Critical Review

“…Diffusion coatings, overlay coatings, and thermal barrier coatings (TBCs) are the major types of coatings that are developed to function in such conditions. [14] There are many surface coating technologies such as halide activated pack cementation, [15] spark plasma sintering, [16] slurry sintering, [17] hot dip silicon-plating [18,19] etc. that effectively prevents oxidation failure of various metals and their alloys at elevated temperature.…”