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钛利用粉末冶金方法制备钛基复合材料。采用X射线衍射仪、金相显微镜、扫描电镜及力学性能测试仪研究材料成分和烧结温度对显微结构及性能的影响。结果表明:加入ZrO2颗粒能够提高粉末冶金钛基复合材料的力学性能。加入4%ZrO2,在1100°C下烧结4h,得到的钛基复合材料的相对密度为93.9%,屈服强度能达到1380MPa(比纯钛高570MPa),并且具有良好的塑性(极限应变超过24%)。
Titanium powder metallurgy method for the preparation of titanium matrix composites. The effects of material composition and sintering temperature on microstructure and properties were investigated by X-ray diffraction, optical microscope, scanning electron microscopy and mechanical properties tester. The results show that the addition of ZrO2 particles can improve the mechanical properties of powder metallurgy titanium matrix composites. Adding 4% ZrO2 and sintering at 1100 ° C for 4h, the relative density of the obtained titanium matrix composite is 93.9%, the yield strength can reach 1380MPa (570MPa higher than that of pure titanium), and has good plasticity (ultimate strain exceeds 24% ).