To investigate the microstructure evolution and mechanical properties of DRTMCs with network microstructure during the rolling deformation, the TiB whiskers reinforced Ti-6.5Al–2Zr–1Mo–1V (TA15) composites (TiBw/TA15) with the addition of silicon element and different TiB volume fractions were successfully fabricated by hot pressing sintering and rolled in the α+β region. Compared with the as-sintered composites, the as-rolled composites presented the lower local TiBw content, higher matrix connectivity, remarkable grain refining and larger silicides. After rolling deformation, the room-temperature ultimate strength and fracture elongation were dramatically improved. The as-rolled 3.5 vol.% TiBw/TA15 composite obtained better combination properties of 1248 MPa and 10.5% at room temperature. The increase in strength can be attributed to grain refining of the matrix, directional distribution of TiBw, and stronger hinder of silicides. The enhancement of ductility was due to increasing matrix connectivity, grain refining as well as DRX behavior of bimodal microstructure. As for high-temperature properties, the tensile strengths increased by 26–32% at 600 °C and 20–32% at 650 °C after rolling, which is also attributed to directional distribution of TiBw, grain refining of matrix and larger silicides. The highest strengths at 600 °C and 650 °C are 820 MPa and 698 MPa, respectively. The fracture behavior of the composites was discussed in detail.

为了研究具有网络微结构的DRTMC的微观结构演变和机械性能，研究了TiB晶须增强的Ti-6.5Al-2Zr-1Mo-1V（TA15）复合材料（TiBw / TA15），并添加了硅元素和不同的TiB通过热压烧结成功地制备了体积分数，并在α+β区轧制。与烧结后的复合材料相比，轧制后的复合材料具有较低的局部TiBw含量，较高的基体连通性，显着的晶粒细化和较大的硅化物。轧制变形后，室温极限强度和断裂伸长率显着提高。轧制的3.5％（体积）TiBw / TA15复合材料在室温下具有更好的组合性能，为1248 MPa和10.5％。强度的提高可归因于基体的晶粒细化，TiBw的定向分布以及更强的硅化物阻碍。延展性的提高归因于基体连通性的提高，晶粒细化以及双峰微观结构的DRX行为。至于高温性能，轧制后的抗拉强度在600°C时提高了26–32％，在650°C时提高了20–32％，这也归因于TiBw的定向分布，基体晶粒细化和较大的硅化物。600°C和650°C时的最高强度分别为820 MPa和698 MPa。详细讨论了复合材料的断裂行为。晶粒细化以及双峰微观结构的DRX行为。至于高温性能，轧制后的抗拉强度在600°C时提高了26–32％，在650°C时提高了20–32％，这也归因于TiBw的定向分布，基体晶粒细化和较大的硅化物。600°C和650°C时的最高强度分别为820 MPa和698 MPa。详细讨论了复合材料的断裂行为。晶粒细化以及双峰微观结构的DRX行为。至于高温性能，轧制后的抗拉强度在600°C时提高了26–32％，在650°C时提高了20–32％，这也归因于TiBw的定向分布，基体晶粒细化和较大的硅化物。600°C和650°C时的最高强度分别为820 MPa和698 MPa。详细讨论了复合材料的断裂行为。