一次烧结制备W-Mo-Ti-TiAl系密度梯度材料
来源期刊：中国有色金属学报2000年第4期
论文作者：熊华平 张联盟 李俊国 沈强 袁润章
文章页码：491 - 496
关键词：W-Mo-Ti-TiAl； 梯度材料； 烧结； 密度
Key words：W-Mo-Ti-TiAl； functionally graded material； sintering; density
摘 要：设计了W-Mo-Ti-TiAl系新型密度梯度材料。分别采用Ni-Cu和Fe-Al烧结剂， 对W-Mo合金和Mo-Ti合金进行了低温热压烧结， 讨论了合金中主要组成元素的结合形式。 最终通过在1 473 K, 30 MPa, 1h条件下一次烧结， 获得整体致密且平行精度较好的梯度材料， 材料的密度在3.81～17.15 g/cm3的较大范围内沿厚度方向呈准连续变化。
Abstract: A new kind of material, W-Mo-Ti-TiAlsystem functionally graded material, was designed. The hot pressing of W-Mo and Mo-Ti alloys at a low temperature was studied, and the combination form of main elements in the sintered alloys was also discussed. The dense W-Mo-Ti-TiAl system FGM withgood parallel precision, was finally obtained through onestep sintering at 1 473 K for 1 h under a pressure of 30 MPa, and its density changes quasicontinuously in its thickness direction within a wide range of 3.81～17.15g/cm3.
