Synthesis and deformation microstructure of Ti3SiAl0.2C1.8 solid solution

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

“…The same kind of results has been obtained in other 211 MAX phase, such as in Cr 2 Al(Si)C and (Ti,Nb) 2 AlC solid solutions [17,29]. By contrast, significant hardening and strengthening effect has been shown in that with substitution into A site of 312 MAX phase [7][8][9][10]. Zhou et al [7] showed that flexural strength and microhardness of Ti 3 Al 0.75 Sn 0.25 C 2 solid solution are enhanced by 12% and 26%, respectively, compared with those of single-phase Ti 3 AlC 2 .…”

“…Zhou et al [7] showed that flexural strength and microhardness of Ti 3 Al 0.75 Sn 0.25 C 2 solid solution are enhanced by 12% and 26%, respectively, compared with those of single-phase Ti 3 AlC 2 . Li et al [8] measured the flexural strength of Ti 3 SiAl 0.2 C 2 to be 425 MPa, 13% above that of Ti 3 AlC 2 . In our earlier work [9,10], the microhardness and flexural strength of the Ti 3 SiAl 0.2 C 2 solid solution were measured to be 3.53 GPa and 560 MPa, respectively, and the value is 12% and 51% higher than that of Ti 3 AlC 2 .…”

“…Due to the similar layered structure and similar characteristics in the same location of different elements, the study of MAX phase solid solutions likewise aroused the interest of researchers [4][5][6][7][8][9][10][11][12][13]. In the existing researches, solid solutions like (Cr 1x V x ) 2 AlC [4,5], Ti 3 Si(Al)C 2 [6][7][8], Ti 3 Al(Sn)C 2 [9][10][11][12], and Ti 2 AlC 0.5 N 0.5 [13] have been reported to possess improved flexural strength, hardness, tribological properties, thermal expansion coefficient, etc. 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.…”

Strengthening and tribological surface self-adaptability of Ti3AlC2 by incorporation of Sn to form Ti3Al(Sn)C2 solid solutions

“…Many studies have already been conducted to form solid solutions with M, A and/or X sites to improve the mechanical properties of this compound [6,[17][18][19][20][21][22][23][24][25][26][27][28]. Meng et al [19] reported that substituting V atoms for 20% of the Ti atoms in Ti 2 AlC resulted in a 45% increase in compressive strength.…”

New Solid Solution MAX Phases: (Ti0.5, V0.5)3AlC2, (Nb0.5, V0.5)2AlC, (Nb0.5, V0.5)4AlC3and (Nb0.8, Zr0.2)2AlC

“…List of the 68 solid solutions known to date. 2 AlC (x = 0.25, 0.3, 0.4, 0.5, 0.6, 0.75, 0.8, 0.85) [9][10][11] (Ti x ,V 1−x ) 3 AlC 2 (x = 0.5 a ) (Ti x ,Cr 1−x ) 2 AlC (x = 0.25, 0.75) [10] ( T i x ,Cr 1−x ) 3 AlC 2 (x = 0.33) [25] (Ti x ,Nb 1−x ) 2 AlC (x = 0.5) [12] (Cr x ,V 1−x ) 3 AlC 2 (x = 0.5) [26] (Ti x ,Ta 1−x ) 2 AlC (x = 0.4) [12] A element (Ti x ,Hf 1−x ) 2 InC (x = 0.5) [13] T i 3 (Al x ,Si 1−x )C 2 (x = 0.1, 0.2, 0.4, 0.5, (Ti x ,Hf 1−x ) 2 InC 1.26 (x = 0.47) [14] 0.75, 0.8, 0.85, 0.9, 0.95) [27][28][29][30] (Ti x ,Zr 1−x ) 2 InC (x = 0.5) [13] T i 3 (Al x ,Sn 1−x )C 2 (x = 0.8) [18] (Cr x ,V 1−x ) 2 AlC (x = 0.25, 0.3, 0.5, 0.7, 0.75, 0.9) [10,11,15] T 2 GeC (x = 0.5) [16] T i 3 (Si x ,Ge 1−x )C 2 (x = 0.43, 0.5, 0.75) [32,33] (V x ,Ta 1−x ) 2 AlC (x = 0.65) [12] T a 3 [12] X element (Nb x ,Zr 1−x ) 2 AlC (x = 0.6, 0.8 a ) [12] T…”