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纤维及颗粒增强Al/Ti叠层复合材料制备方法和性能研究
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大连理工大学材料科学与工程学院

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TB331

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国家自然科学(51971049);装备预先研究项目(xxxxxxxx603);中央高校基本科研业务费项目(DUT19GF110)


Preparation and properties of fiber and particle reinforced Al / Ti laminated composites
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School of Materials Science and Engineering,Dalian University of Technology

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    摘要:

    Al/Ti叠层复合材料具有低密度、高比强度、高比刚度和高抗冲击性的优异性能,是一种理想的轻质高强材料,但是金属间化合物Al3Ti的脆性限制了其实际应用。通过复合纤维、陶瓷颗粒可以降低Al3Ti的脆性,提高Al/Ti叠层复合材料的强度和韧性,使其在航空航天、武器装甲等领域具有广阔的应用前景。本文简述了部分典型纤维、陶瓷颗粒增强Al/Ti叠层复合材料的制备方法,比较了不同材料和制备方法的优缺点。提出了碳化硼(B4C)增强Al/Ti叠层复合材料的可行方法,并采用真空热压法制备了0.2 mm厚的B4C薄片强化的Al/Ti叠层复合材料,该方法通过B4C薄片直接承载吸能和形成硬度梯度诱导裂纹偏转的方式强化基体,使其冲击韧性达到89 J/cm2,抗弯强度可达756 MPa,相较基体分别提高51%和38%。

    Abstract:

    Al/Ti laminated composite features remarkable properties, such as low density, high strength, high stiffness and impact resistance, but its application has been limited because of the brittleness of Al3Ti. Its strength and toughness can be improved by introducing fibers and ceramic particles, which makes it have a broad application prospect in aerospace, weapons and armor. In this paper, the preparation methods of fibers and ceramic particles reinforced Al/Ti laminated composite were reviewed. The merit and dement of different preparation methods were compared. Besides, some feasible methods of boron carbide(B4C) reinforced Al/Ti laminated composite were proposed. The 0.2 mm thick B4C sheets reinforced Al/Ti laminated composite was prepared by vacuum hot pressing method. In this method, B4C sheets strengthen the matrix through directly receiving loads and deflecting crack by hardness gradient. Its impact toughness was 89 J/cm2 and bending strength was 756 MPa, it is increased by 51% and 38% respectively compared with the Al/Ti laminated matrix.

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周秉文,徐昊,衣云鸽,孟令刚,亚斌,张环月,张兴国.纤维及颗粒增强Al/Ti叠层复合材料制备方法和性能研究[J].稀有金属材料与工程,2022,51(1):335~340.[ZHOU Bingwen, XU Hao, YI Yunge, Meng Linggang, YA Bin, ZHANG Huanyue, ZHANG Xingguo. Preparation and properties of fiber and particle reinforced Al / Ti laminated composites[J]. Rare Metal Materials and Engineering,2022,51(1):335~340.]
DOI:10.12442/j. issn.1002-185X.20210080

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历史
  • 收稿日期:2021-01-26
  • 最后修改日期:2021-03-30
  • 录用日期:2021-04-16
  • 在线发布日期: 2022-02-09
  • 出版日期: 2022-01-28