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钛基复合材料在运输和航空工业领域具有广泛的应用。以Ti-6Al-4V和B4C为原料分别采用冷压-真空烧结和放电等离子烧结两种方法制备Ti B晶须增强钛基复合材料。考察不同复合材料Ti B晶须的分布、大小以及长径比,研究放电等离子烧结温度对Ti B晶须增强钛基复合材料的影响。光学显微镜(OM),扫描电镜(SEM)以及EDS分析结果表明:将放电等离子烧结温度从900°C升高到1100°C可以使Ti B晶须原位自生反应完全,同时减少材料的孔隙含量。
Titanium-based composites have a wide range of applications in the transportation and aerospace industries. Ti-6Al-4V and B4C were used as raw materials to prepare TiB whisker reinforced titanium matrix composites by cold pressing-vacuum sintering and spark plasma sintering respectively. The distribution, size and aspect ratio of TiB whiskers with different composites were investigated to investigate the effects of sintering temperature on TiB whisker reinforced Ti matrix composites. Optical microscope (OM), scanning electron microscopy (SEM) and EDS analysis showed that increasing the sintering temperature of the spark plasma from 900 ° C to 1100 ° C completely completes the in-situ self-generation of TiB whiskers while reducing the porosity of the material .