Deposition of hard and/or corrosion resistant, single and multielement coatings on ferrous and nonferrous alloys in a fluidized bed reactor

Characteristics and wear performance of borided Ti6Al4V alloy

“…The cross-section SEM micrographs along with the results of EDX analysis and XRD pattern of the borided alloy are given in Table 1 The characteristics of Ti and Ti6Al4V alloy surfaces after diffusional boriding techniques Authors Boriding technique Base Metal Surface Layer Hardness Brandstötter and Lengauer [11] Pack Ti TiB and TiB 2 Kaestner et al [12] Plasma-assisted Ti and Ti6Al4V TiB and TiB 2 2800 HK Anthymidis et al [13] Fluidized bed Ti6Al4V TiB and TiB 2 Aich and Ravichandran [14] Pack Ti TiB whiskers 550 HV Anthymidis et al [15] Fluidized bed Ti and Ti6Al4V TiB and TiB 2 Tsipas et al [16] Fluidized bed Ti and Ti6Al4V TiB and TiB 2 1925 HV Prytula et al [17] Pack Ti TiB and TiB 2 1440 HV He et al [18] Pack Ti TiB, TiB 2 and TiC 820 HV Tikekar et al [19] Pack Ti6Al4V TiB 2 3200 HV Lee et al [20] Pack Ti6Al4V TiB 2 3300 HV Figs. 1 and 2, respectively.…”

“…Even though titanium borides exhibit excellent combination of hardness and wear resistance in many tribological systems, only a few publications exist on boriding of titanium and titanium alloys as an alternative diffusion technique [11][12][13][14][15][16][17][18][19][20]. Table 1 presents the characteristics of Ti and Ti6Al4V alloy surfaces after diffusional boriding.…”

Iron aluminide coatings on ferritic steels by CVD-FBR technology

“…These conditions allow the conservation of microstructure and mechanical properties of these types of steels. Some of the advantages of using a fluidized bed reactor involve high and uniform mass and heat transfer rates [13][14][15]. This process has been successfully used to carry out aluminizing, chromizing, nitriding and carburizing [16][17][18].…”

Zinc deposition with pack cementation on low carbon steel substrates

“…Although CVD is widely used for the deposition of aluminum, chromium, silicon and other elements on different substrates in industrial scale facilities [10][11][12][13][14][15][16][17][18], its application for Zn deposition is relatively rare. The formation of a two-step Al and Zn diffusion coating is reported [20].…”