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纖維及顆粒增強(qiáng)Al/Ti疊層復(fù)合材料制備方法和性能研究
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大連理工大學(xué)材料科學(xué)與工程學(xué)院

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中圖分類(lèi)號(hào):

TB331

基金項(xiàng)目:

國(guó)家自然科學(xué)(51971049)；裝備預(yù)先研究項(xiàng)目(xxxxxxxx603);中央高?；究蒲袠I(yè)務(wù)費(fèi)項(xiàng)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疊層復(fù)合材料具有低密度、高比強(qiáng)度、高比剛度和高抗沖擊性的優(yōu)異性能,是一種理想的輕質(zhì)高強(qiáng)材料,但是金屬間化合物Al3Ti的脆性限制了其實(shí)際應(yīng)用。通過(guò)復(fù)合纖維、陶瓷顆粒可以降低Al3Ti的脆性,提高Al/Ti疊層復(fù)合材料的強(qiáng)度和韌性,使其在航空航天、武器裝甲等領(lǐng)域具有廣闊的應(yīng)用前景。本文簡(jiǎn)述了部分典型纖維、陶瓷顆粒增強(qiáng)Al/Ti疊層復(fù)合材料的制備方法,比較了不同材料和制備方法的優(yōu)缺點(diǎn)。提出了碳化硼(B4C)增強(qiáng)Al/Ti疊層復(fù)合材料的可行方法,并采用真空熱壓法制備了0.2 mm厚的B4C薄片強(qiáng)化的Al/Ti疊層復(fù)合材料,該方法通過(guò)B4C薄片直接承載吸能和形成硬度梯度誘導(dǎo)裂紋偏轉(zhuǎn)的方式強(qiáng)化基體,使其沖擊韌性達(dá)到89 J/cm2,抗彎強(qiáng)度可達(dá)756 MPa,相較基體分別提高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,衣云鴿,孟令剛,亞斌,張環(huán)月,張興國(guó).纖維及顆粒增強(qiáng)Al/Ti疊層復(fù)合材料制備方法和性能研究[J].稀有金屬材料與工程,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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歷史
  • 收稿日期:2021-01-26
  • 最后修改日期:2021-03-30
  • 錄用日期:2021-04-16
  • 在線(xiàn)發(fā)布日期: 2022-02-09
  • 出版日期: 2022-01-28