Oxide-film-dependent tribological behaviors of Ti3SiC2

Fabrication, mechanical properties, and tribological behaviors of Ti2AlC and Ti2AlSn0.2C solid solutions

“…So tin oxide could be generated easier than titanium oxide and Al 2 O 3 , due to the local high temperature and pressure during the friction process. The mixed oxide film is responsible for the friction behavior as described in our previous work [9,10,22,23]. Sliding speed affects the coverage of friction surface oxide film.…”

“…MAX phases and their solid solutions are demonstrated to have considerable advantages of unique nanolamellar crystal structure, high strength, resistance to elevated temperature decomposition and chemical corrosion, and so on. Furthermore, these  compounds as well possess oxidation behaviors, high damage tolerance, resistance to thermal shock, and ductile-to-brittle transition, which are closely relevant to tribological properties [1,[14][15][16][17][18][19][20][21][22][23]; therefore, they are promising candidates for tribological applications.…”

“…In recent ten years, many researches in tribological study of MAX phases like Ti 3 SiC 2 and Ti 3 AlC 2 and MAX matrix composite materials have been conducted [9,10,[18][19][20][21][22][23]. Gonzalez-Julian et al [19] consolidated the Cr 2 AlC/SiC fiber composites to evaluate the tribological properties of Cr 2 AlC, and found that the friction decreases up to 20% while the wear resistance increases up to 80% for Cr 2 AlC/10SiC composite.…”

“…Gupta and Barsoum [21] chose Ta 2 AlC, Ta 2 AlC/Ag, and Cr 2 AlC/Ag composites to test against Ni-based superalloys; they found out the tribological characteristics are mainly decided by the generated film of MAX phase or MAX matrix composite. Zhai et al [22] and Huang et al [23] reported that due to the oxide film with self-lubricating effect on the friction surface, Ti 3 SiC 2 and Ti 3 AlC 2 exhibit excellent tribological properties sliding against low-carbon steel. Xu et al [9] and Huang et al [10] added 0.2Sn and 0.4Sn to fabricate Ti 3 Al(Sn)C 2 solid solutions; the experimental investigation showed that micro-Vickers hardness is about 12% higher and the flexural strength is increased by 51% and 67% respectively, compared with Ti 3 AlC 2 .…”

Effect of texture microstructure on tribological properties of tailored Ti3AlC2 ceramic

“…On the TSS-2, the mean coefficient of friction is achieved with the values of 0.257 (1 N), 0.289 (5 N), and 0.282 (9 N). It is suspected that on the TSS-1 and TSS-2, the scratch resistance undoubtedly shows the positive effect on the enhancement of coefficient of friction under the loads of 1 and 5 N. However, the reverse tendency of decrease of mean coefficient of friction under the load of 9 N is possibly ascribed to the formation of oxide debris which lubricated the countercouples so as to weaken the sliding resistance [29]. Tables 2 and 3 list the wear rates of textured Ti 3 AlC 2 samples and SUS304 balls as a function of load, respectively.…”