以铁粉为基体，TiC颗粒为增强相，通过球磨、压制成型，微波烧结制备出TiC钢结硬质合金。结果表明，在1400℃微波烧结时，TiC颗粒与Fe具有良好的润湿性和流动性。随TiC含量升高，合金的晶粒逐渐变得均匀细小，合金的相对密度、显微硬度和抗弯强度均先升高后下降，相对密度和抗弯强度在TiC含量5％时达到最高值，分别为94．61％和1327．20MPa，显微硬度在TiC含量10％时达到最高值，为760HV。随TiC含量增加，钢结硬质合金的断裂方式由韧性断裂向脆性断裂过渡。
TiC steel bonded carbides were prepared by ball milling, press forming and microwave sintering with iron powders as matrix and TiC particles as reinforcements. The results show that a good wettability and liquidity between TiC particles and Fe can be obtained when the microwave sintering temperature at 1400℃. With the increase of TiC content, the grain of the alloy gradually becomes uniform and fine, at the same time, the relative density, microh/trdness and bending strength of the alloy all increase firstly, and then decease. The relative density and bending strength reach the maximum values of 94.61% and 1327.20 M Pa, respectively, for the alloy with the content of 5% TiC. The microhardness reaches a maximum value of 760 HV at the content of 10% TiC. The fracture mode of the TiC steel-bonded carbides changes from ductile fracture to brittle fracture with increasing the TiC content
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