The effect of heat treatment on mechanical properties of in situ synthesized 7715D titanium matrix composites

Temperature dependence of tensile properties and fracture behavior of as rolled TiB/Ti composite sheet

“…Hence, the incremental UTS at 700 1C is quite limited. Similar results have been reported in the UTS of (TiBþLa 2 O 3 )/7715D composites tested at 700 1C [24]. As the test temperature increases above 700 1C, it can be deduced that the interfacial strength becomes lower and lower according the prevailing characteristic of interfacial debonding (Figs.…”

“…The increase in ductility of TMCs with increasing tensile temperature is essentially due to the softening of matrix [12][13][14][15][16][17][18][19][20][21][22][23][24][25]. In view of the variation of the elongations with temperature (Figs.…”

“…4). This phenomenon is due to the cracking of TiB whiskers during tension test, which will degrade the ductility [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. And Liu et al [28] have mentioned that the decrease in ductility would be due to that the matrix plastic flow can be impeded by the reinforcements.…”

Control of the Lamellar Structure and Analysis of Tensile Properties of TiC/Ti-6Al-3Sn-9Zr-1.5Mo Composite Produced by In Situ Casting Technique

“…Generally, the lamellar microstructure, equiaxed microstructure and duplex microstructure can be obtained in titanium alloys and TMCs through heat treatment or other methods [16,17]. Wang et al [18] pointed out that TMCs with fully lamellar structure display superior comprehensive properties in comparison with those with equiaxed structure. Furthermore, lamellar microstructure can more effectively impede the propagation of cracks generating in cracked reinforcements.…”

Microstructural characterization and mechanical properties of TiC/near-α Ti composite obtained at slow cooling rate

“…Much work has been performed on the evolution of microstructures and mechanical properties of TMCs as well as α + β or near-α titanium alloys during heat treatment [11][12][13][14][15]. Water-quenching and air-cooling from β phase district result in the formation of martensite and fully lamellar microstructure, respectively, in TMCs and titanium alloys [12,13].…”