Synthesis–structure–property relations for Cr–B–N coatings sputter deposited reactively from a Cr–B target with 20at% B

The nanostructure, wear and corrosion performance of arc-evaporated CrBxNy nanocomposite coatings

“…These results are in agreement with other work in which it has been observed that for TiB x N y and CrB x N y coatings with varying a-BN contents, the friction coefficient remains in the range 0.4 -0.6 [46][47][48]. The friction coefficient for the coatings at 500°C is similar to that obtained at RT, suggesting that oxidation does not have a strong effect on the friction coefficient.…”

Synthesis and characterization of Cr–B–N coatings deposited by reactive arc evaporation

“…3 In contrast to these binary coatings, only a few studies have been reported on coatings within the ternary Cr-B-N system. [4][5][6][7][8] Additions of B have been reported to result in a substantial improvement of the mechanical properties and thermal stability of CrN coatings. 5,8 For similar systems, such as Ti-B-N, B-enriched areas, covering TiN crystals and promoting the nucleation of TiB 2 (which itself has a low solubility for N) were reported.…”

“…9 The addition of boron also promotes increased cohesion at the grain boundaries by affecting the local bonding at the interface (assuming that there is no oxygen, chlorine, or hydrogen uptake during deposition that would weaken the interfacial strength). 10,11 Although little is known about Cr-B-N thin films, [4][5][6][7][8] bulk Cr-B-N is a multiphase material with a complex phase diagram, 12 consisting of CrN, Cr 2 N, BN, and various Cr x B y phases (see Fig. 1), each of which exhibit different mechanical properties.…”

Structure and mechanical properties of Cr–B–N films deposited by reactive magnetron sputtering

“…Among different materials studied, boronbased compounds are the most promising candidates for coatings showing high mechanical and anti-corrosive performance. Several transition metal boron nitrides (TMe-B-N) type coatings are in the focus of interest for mechanical applications like Zr-B-N [10,11], Ti-B-N [11][12][13], Cr-B-N [14][15][16][17][18][19][20][21][22][23]. Cr-B-N is a multiphase material with complex phase forms, consisting of CrN x , BN and various Cr x B y phases, each of which exhibit different mechanical properties [14,15].…”

“…The understanding and control of the phase evolution during the deposition of such complex materials is key to fabrication of coatings with tailored properties/performance. Cr-B-N coatings have been investigated by some researchers [14][15][16][17][18][19][20][21][22][23] and different microstructure and mechanical properties have been observed according to the deposition parameters. With the structure adjusting, the mechanical properties of the resulting CrBN films can vary over a wide range (from ∼10 GPa to ∼40 GPa).…”