碳化硼粒度对无压浸渗高体分铝基复合材料微观组织和力学性能的影响

doi:10.11896/cldb.18090005

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Abstract The boron carbide (B₄C) particles with average particle size of 2.0 μm and 38 μm were used to prepare B₄C preforms with particle-size distributions being 100% 38 μm, 20% 2.0 μm+80% 38 μm and 100% 2.0 μm, respectively. Correspondingly, three kinds of high volume fraction B₄C/Al composites were prepared by pressureless infiltration and the effects of particle size of boron carbide on the phase constitution, microstructure and mechanical properties of the composites were investigated.The results show that all of the B₄C/6061Al composites present the same phase constitution, including B₄C, Al, Al₃BC, AlB₂ and Fe-Mn-rich phases. When the reinforcing phase is completely large particle, B₄C particles are uniformly distributed in the composite. The degree of the interface reaction is weak, with the random distribution of the interface pro-ducts, AlB₂ and Al₃BC. The hardness and flexural strength of the corresponding composite are 23.2HRC and 406 MPa, respectively. B₄C fine particle possesses higher specific surface area than that of the large particle and, therefore, the actual contact area between B₄C fine particles and the molten aluminum alloy is larger, resulting in the severe interfacial reaction. With 20% of B₄C fine particles being involved, the consumption of the aluminum matrix increases in the composite, wherein B₄C large particle also present a uniform distribution characteristic. Within the region between the large particles, the remaining fine particles are uniformly distributed in the interface products. Due to the increasing fraction of the initial B₄C particles and the interfacial products, the hardness of the composite increases to 40.02HRC, and the flexural strength increases slightly to 425 MPa with a decreasing strain. When the reinforcing phase is completely fine particles, aluminum is consumed in a large amount by the severe interfacial reaction in the composite, wherein Al₃BC and AlB₂ become the dominant phases, and the remaining B₄C particles are uniformly distributed in the ceramic phase matrix. The hardness of the composite improves to 56.8HRC. However, the flexural strength of the composite drops to 248 MPa, which is due to the presence of the micropore defects derived from the high-temperature sintering process of B₄C fine particle.

Key words： boron carbide composite pressureless infiltration mechanical properties hardness

Published: 29 August 2019

CLC number:

TB333.1+2

About author:: Leigang Caoreceived his Ph.D. degree in materials from University of Leeds in 2014. He is currently a lecturer in North China University of Technology. His research interests are metal matrix composite and theory of solidification.Yan Cuireceived his Ph.D. degree in composite material from Harbin Institute of Technology (HIT) in 1997. He is currently a professor in North China University of Technology. His research interests are preparation and application of metal matrix composite.

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	CAO Leigang
	WANG Xiaohe
	CUI Yan
	YANG Yue
	LIU Yuan

Cite this article:

CAO Leigang,WANG Xiaohe,CUI Yan, et al. Effect of B₄C Particle Size on the Microstructure and Mechanical Properties of High Volume Fraction Aluminum Matrix Composite Fabricated by Pressureless Infiltration[J]. Materials Reports, 2019, 33(20): 3472-3476.

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http://www.mater-rep.com/EN/10.11896/cldb.18090005 OR http://www.mater-rep.com/EN/Y2019/V33/I20/3472

Liu B, Huang W, Wang H, et al.Journal of Composite Materials, 2014, 48(3), 355.2 Yue X, Wang J, Yu S, et al.Materials & Design, 2013, 46, 285.3 Dai L Z. The produce, property research and Monte-Carlo simulation of B4C/Al neutron absorber composites. Master’s Thesis, Nanjing University of Aeronautics and Astronautics, China, 2014(in Chinese).戴龙泽. B4C/Al中子吸收复合材料的制备、性能测试与蒙特卡罗模拟. 硕士学位论文, 南京航空航天大学, 2014.4 Abenojar J, Velasco F, Martínez M A.Journal of Materials Processing Technology, 2007, 184(1-3), 441.5 Canakci A, Varol T, zkaya S, et al.Universal Journal of Materials Science, 2014, 2(5), 90.6 Skorokhod V, Krstic V D.Journal of Materials Science Letters, 2000, 19(3), 237.7 Wang Y, Zhang Y, Tian Q, et al.Special Casting & Nonferrous Alloys, 2008(S1), 428(in Chinese).王扬卫, 张维官, 田擎东, 等.特种铸造及有色合金, 2008(S1), 428.8 Ravi B, Naik B B, Prakash J U.Materials Today: Proceedings, 2015, 2(4-5), 2984.9 Kubota M.Journal of Alloys and Compounds, 2010, 504(S1), S319.10 Chen H S, Wang W X, Li Y L, et al.Materials & Design, 2016, 94, 360.11 Li Q, Hua W, Cui Y, et al.Journal of Materials Engineering, 2003(4), 17(in Chinese).李青, 华文君, 崔岩, 等.材料工程, 2003(4), 17.12 Luo Z, Song Y, Zhang S, et al.Metallurgical & Materials Transactions A, 2012, 43(1), 281.13 Halverson D C, Pyzik A J, Aksay I A . U.S. Patent, US6855428, 2009.14 Pyzik A J, Beaman D R.Journal of the American Ceramic Society, 1995, 78(2), 305.15 Viala J C, Bouix J, Gonzalez G, et al.Journal of Materials Science, 1997, 32(17), 4559.16 Kawai C.Journal of the Ceramic Society of Japan, 2002, 110, 1016.17 Xue Y Q, Zhao H, Du J P.Chinese Journal of Inorganic Chemistry, 2006, 22(11), 1952(in Chinese).薛永强, 赵红, 杜建平.无机化学学报, 2006, 22(11), 1952.18 Xue Y Q, Duo J P, Wang P D, et al.Acta Physico-Chimica. Sinica, 2005, 21(7), 758(in Chinese).薛永强, 杜建平, 王沛东, 等.物理化学学报, 2005, 21(7), 758.19 Jagtap S B, Pande A R, Gokarn A N.International Journal of Mineral Processing, 1992, 36(1-2), 113.20 Lei P, Xia C Q, Zhou F, et al.Powder Metallurgy Materials Science and Engineering, 2012, 17(3), 321(in Chinese).雷攀, 夏长清, 周飞, 等.粉末冶金材料科学与工程, 2012, 17(3), 321.21 Jung J, Kang S.Journal of the American Ceramic Society, 2010, 87(1), 47.22 Zhan Z, Chen X G, Charette A.Journal of Materials Science, 2007, 42(17), 7354.23 Luo Z P, Sun C Y.Materials Characterization, 2003, 50(1), 51.24 Wang D, Xue X, Liu R, et al.Materials Review, 2007, 21(S1), 388(in Chinese).王东山, 薛向欣, 刘然, 等.材料导报, 2007, 21(专辑8), 388.25 Übeyli M, Acir A, Karaka M S, et al.Science and Engineering of Composite Materials, 2008, 15(2), 131.26 Fu B, Li S R, Wang Y L.Atomic Energy Science and Technology, 1997, 31(5), 400(in Chinese).傅博, 李盛荣, 王永兰.原子能科学技术, 1997, 31(5), 400.