A series of novel steel—Ti(C,N) composites was fabricated by spark plasma sintering (SPS) and subsequent heat treatment. The hardness, indentation fracture resistance, and wear behaviour of the steel—Ti(C,N) composites were compared with those of the unreinforced samples, and their potentials were assessed by comparison with traditional cermet/hardmetal systems. The results showed that with the addition of 20wt% Ti(C,N), the wear rates of the newly examined composites reduced by a factor of about 2 to 4 and were comparable to those of cermets and hardmetals. The martensitic transformation of the steel matrix and the formation of in situ carbides induced by heat treatment enhanced the wear resistance. Although the presence of excessive in situ carbides improved the hardness, the low indentation fracture resistance (IFR) value resulted in brittle fracture, which in turn resulted in poor wear property. Moreover, the operative wear mechanisms were investigated. This study provides a practical and cost-effective approach to prepare steel—Ti(C,N) composites as potential wear-resistant materials.

通过火花等离子体烧结（SPS）和随后的热处理，制备了一系列新型的钢-Ti（C，N）复合材料。将钢-Ti（C，N）复合材料的硬度，抗压痕断裂性能和磨损行为与未增强的样品进行了比较，并通过与传统金属陶瓷/硬质合金体系的比较来评估了它们的潜力。结果表明，添加20wt％的Ti（C，N）后，新检查的复合材料的磨损率降低了约2-4倍，可与金属陶瓷和硬质合金相媲美。钢基体的马氏体相变和热处理引起的原位碳化物的形成增强了耐磨性。虽然存在过多的原位碳化物提高了硬度，低抗压痕断裂强度（IFR）导致脆性断裂，进而导致耐磨性差。此外，对手术磨损机理进行了研究。这项研究提供了一种实用且具有成本效益的方法来制备钢-Ti（C，N）复合材料作为潜在的耐磨材料。