In this study, a two-step sintering technique was applied to prepare TiC steel-bonded carbides. The first step sintering process was heating to a liquid sintering temperature of 1390 °C without soaking time for achieving a critical density, and then unstable micropores remained in the samples, in which the rapidly densification of sample primarily depended on liquid pore filling. The second step sintering was performed at a lower temperature of 1330 °C for 10 h to complete densification process due to the grain-boundary diffusion. Compared with traditional vacuum sintering method, the growth of TiC particle was inhibited significantly and the evaporation of metal binder was suppressed through the two-step sintering technique. Overall, the prepared samples possessed excellent mechanical properties with the TRS and hardness of 2093.3 MPa and 87.3 HRA, respectively.

在这项研究中，采用了两步烧结技术来制备TiC钢结合的碳化物。第一步烧结过程是加热至1390°C的液体烧结温度，而没有保温时间以达到临界密度，然后不稳定的微孔留在样品中，其中样品的快速致密化主要取决于液体孔的填充。由于晶界扩散，第二步烧结在1330°C的较低温度下进行10 h，以完成致密化过程。与传统的真空烧结方法相比，通过两步烧结技术可显着抑制TiC颗粒的生长，并抑制金属粘合剂的蒸发。总体而言，所制备的样品具有出色的机械性能，TRS和硬度分别为2093.3 MPa和87。