采用机械合金化(MA)的方法将B和FeMo粉末与金属Ti的粉末混合均匀,球磨10 h后,真空热压烧结制备原位生成TiB增强Ti-4.0Fe-7.3Mo复合材料.在金相显微镜(OM)下观察,复合材料由TiB增强区与不含TiB的基体所组成.TEM研究表明:增强区是由反应生成的TiB增强的α和β-Ti 2相共同组成,在α和β-Ti相交界处分布的TiB不仅尺寸较大,而且数量也较两相内部的TiB多.在α钛中观察到少量的平行于α相板条的特殊TiB的存在.反应生成的TiB呈截面为六边形的针状,与基体的界面清洁、平直匹配良好.复合材料的三点弯曲强度和杨氏模量均随反应生成TiB体积含量的增加而降低.
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