Comparison of titanium silicide and carbide reinforced in situ synthesized TiAl composites and their mechanical properties

Effect of Ceramic Content on the Compression Properties of TiB2-Ti2AlC/TiAl Composites

“…Consequently, the dislocation interactions during plastic deformation would become weak with the increase in ceramic content, leading to a decrease in Hc. The stress-strain curves also exhibit a low modulus in the elastic region, which is similar to other researchers' work [21,22]. It is speculated that porosity might be playing a part in this.…”

Synthesis, microstructure and mechanical properties of (Ti,Mo)Al/Al2O3in situ composites by reactive hot pressing

“…Based on Eqs. (14) and (15), the relationship between the work of adhesion and the contact angle can be obtained as:…”

“…[8][9][10][11][12][13][14][15][16][17][18] And considerable investigations have shown that incorporation of second phase and micro-alloying are doable and resultful to control the microstructure and improve the mechanical properties of TiAl intermetallics. [10][11][12][13][14][15][16][17][18] On one hand, ceramic particles, for instance, Si 3 N 4 , 10 TiB 2 , TiC, 11 Al 2 O 3 13 as well as Ti 5 Si 3 15 as effective reinforcements have been performed in many researches. Rao et al 15 have successfully synthesized TiAl-Ti 5 Si 3 in situ composites by hot isostatic pressing (HIP), which showed that the yield strengths of TiAl based alloys obtained with the technique adopted in the study were significantly high even at an elevated temperature of 800°C.…”

“…[10][11][12][13][14][15][16][17][18] On one hand, ceramic particles, for instance, Si 3 N 4 , 10 TiB 2 , TiC, 11 Al 2 O 3 13 as well as Ti 5 Si 3 15 as effective reinforcements have been performed in many researches. Rao et al 15 have successfully synthesized TiAl-Ti 5 Si 3 in situ composites by hot isostatic pressing (HIP), which showed that the yield strengths of TiAl based alloys obtained with the technique adopted in the study were significantly high even at an elevated temperature of 800°C. Zhu et al 17 have found out the combining aluminothermic reduction of Nb 2 O 5 into the synthesis process to produce in situ formed Al 2 O 3 particles were considered as an appropriate reinforcing method for the TiAl matrix, which was attributed to the outstanding mechanical properties of Al 2 O 3 particles of high hardness, high modulus, and matched thermal expansion coefficient with TiAl phase.…”

Modal Analysis and Research of Spherical Plain Bearings in Different Materials based on the ANSYS-Workbench

“…It also has good creep resistance and extremely high oxidation resistance, and can replace traditional sliding bearing material tin bronze, zinc alloy and stainless steel, etc. [4][5][6].As a new type of high temperature resistance materials, TiAl based alloy material with great potential become light and high-temperature materials in the aerospace, automotive. On the basis of Ti44Al2Cr2Nb alloys to add B and hig component Nb (8%) and high hardness ceramic particle nucleation Al2O3, prepared Ti44Al2Cr8Nb3V0.5B0.5Al2O3 new titanium alloy material of antiwear and friction reducing, high temperature resistance and light weight, in its capacity as spherical plain bearing new materials.…”