Tribological and corrosion behavior of flame sprayed Al–10 wt% Ti3SiC2 composite coating on carbon steel

Effect of Ti3SiC2 content on the corrosion behavior of Al/Ti3SiC2 composite coatings

“…Previous work indicated that the presence of Ti 3 SiC 2 particles does not have a significant impact on the phase structure of the matrix. [ 6 ] According to the SEM micrograph of the cross‐section of the coating, the porosity of composite coatings was notably more than that of pure aluminum coatings. Furthermore, an increase in the porosity of aluminum composite coatings, which was due to adding the second phase was reported by other researchers.…”

“…Accordingly, the corrosion resistance of the composite coating is much more than pure aluminum coating. As discussed before, it could be attributed to the presence of Ti-C particles around Ti 3 SiC 2, [6] which makes the flow transfer between Ti 3 SiC 2…”

“…Ti 3 SiC 2 compound was synthesized from Ti, Si, and C powders, which has been explained in previous works. [ 6,12 ] The average size of Ti 3 SiC 2 particles ranged from 300 to 700 nm. Figure 1a,b depict X‐ray diffraction pattern and the layered structure of Ti 3 SiC 2 particles, respectively.…”

“…In general, it can be concluded that by adding SiC and MoSi 2 second phase the corrosion properties of the composite coatings were degredated. Nevertheless, in our previous work, [ 6 ] it was observed that Ti 3 SiC 2 particles led to the nobility of composite coating than a pure aluminum coating because of the interaction of Ti 3 SiC 2 with the matrix. Meanwhile, when compared with other composites, wear resistance increased dramatically.…”

“…Meanwhile, when compared with other composites, wear resistance increased dramatically. [6] Ti 3 SiC 2 , which belongs to a ternary family called MAX phases, has a unique structure and possess special properties. The general formula of MAX phases is given by M n+1 AX n , in which n = 1, 2, or 3 and M is an early transition metal; A is an A-group element (mostly groups 13 and 14) and X denotes either C or N. Due to their crystal structure, these materials simultaneously demonstrate the properties of both metals and ceramics.…”