Refractory metal carbides play a critical role in numerous applications due to their exceptional hardness, excellent wear resistance and high-temperature stability. This study successfully synthesizes (Ti, W)C powders by using the self-propagating high-temperature synthesis (SHS) method. The results indicate that the phase structure, morphology, microstructure of (Ti, W)C carbides differ significantly from those of WC carbide synthesized using the similar technique. The (Ti, W)C carbides exhibit angular grain morphology with refined grain sizes due to the addition of Ti. Furthermore, the influence of the Ti/W ratio on the nanohardness of (Ti, W)C was examined, with the (Ti0.6, W0.4)C sample achieving the highest hardness of 35.7 GPa ± 2.8 GPa.

中文翻译：

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自蔓延高温合成 （Ti， W）C 碳化物的微观结构与性能


难熔金属碳化物由于其卓越的硬度、优异的耐磨性和高温稳定性，在许多应用中发挥着关键作用。本研究采用自蔓延高温合成 （SHS） 方法成功合成了 （Ti， W）C 粉末。结果表明，（Ti、W）C 碳化物的相结构、形貌、微观结构与使用类似技术合成的 WC 碳化物的相结构、形貌、微观结构显著不同。由于添加了 Ti，（Ti、W）C 碳化物表现出具有细化晶粒尺寸的角晶粒形态。此外，还研究了 Ti/W 比对 （Ti， W）C 纳米硬度的影响，其中 （Ti0.6， W0.4）C 样品达到了 35.7 GPa ± 2.8 GPa 的最高硬度。