Al_2O_3/Ti_2AlN复合材料的弯曲性能研究

详细信息    查看全文 | 推荐本文 |

英文篇名：Study on flexural properties of Al_2O_3/Ti_2AlN composite materials 作者：李菊英 ; 陈继兵 ; 杨军胜 ; 吴艳 ; 宛农 ; 李亚娜 ; 张国全 英文作者：LI Ju-ying;CHEN Ji-bin;YANG Jun-sheng;WU Yan;WAN Nong;LI Ya-na;ZHANG Guo-quan;School of Mechanical Engineering,Wuhan Polytechnic University; 关键词：Al_2O_3/Ti_2AlN复合材料 ; MAX相 ; Ti_2AlN ; 弯曲性能 英文关键词：Al_2O_3/Ti_2AlN composites;;MAX phase;;Ti_2AlN;;flexural properties 中文刊名：WHSP 英文刊名：Journal of Wuhan Polytechnic University 机构：武汉轻工大学机械工程学院; 出版日期：2019-04-15 出版单位：武汉轻工大学学报 年：2019 期：v.38;No.138 基金：武汉轻工大学校立科研项目(2016y07) 语种：中文; 页：WHSP201902006 页数：4 CN：02 ISSN：42-1856/T 分类号：35-38

摘要

采用真空热压法原位形成强化相Al_2O_3,制备出Al_2O_3颗粒增强Ti_2AlN基复合材料。对热压态复合材料样品在不同温度下的弯曲性能进行了测试,研究了不同的应变速率对弯曲性能的影响。随着温度的升高,弯曲强度从室温的580 MPa降低到1 200℃的10 MPa,表现出优越的高温变形能力。在压头位移速率小于0. 5 mm/min时,应变速率敏感因子m值为0. 24,在压头位移速率大于0. 5 mm/min时,m值为0. 68。
        Al_2O3/Ti_2AlN composites were prepared by vacuum hot pressing,by which Al_2O_3 particles as strengthening phase were in situ formed. In this paper,the flexural properties of hot-pressed composites at different temperatures were tested,and the effects of different strain rates on the flexural properties were studied. With the increase of temperature,the bending strength decreases from 580 MPa at room temperature to 10 MPa at 1200 ℃,showing superior high temperature deformation ability. When the head displacement rate is less than 0. 5 mm/min,the strain rate sensitive factor m is 0. 24,and when the head displacement rate is greater than 0. 5 mm/min,m is0. 68.

引文

[1]Barsoum M W.The MN+1AXNphases:a new class of solids:Thermodynamically stable nanolaminates[J].Prog Solid State Chem.2000,28:201.
    [2]Radovic M,Barsoum M W.MAX phases:Bridging the gap between metals and ceramics[J].American Ceramic Society Bulletin,2013,92:20.
    [3]Hoffman E N,Vinson D W,Sindelar R L,et al.Barsoum,MAX phase carbides and nitrides:Properties for future nuclear power plant incore applications and neutron transmutation analysis[J].Nuclear Engineering and Design,2012,244:17.
    [4]Tallman D J,Hoffman E N,Caspi E N,et al.Barsoum,Effect of neutron irradiation on select MAX phases[J].Acta Mater.,2015,85:132.
    [5]Barsoum M W,Li M A,L-Raghy T.Processing and characterization of Ti2Al C,Ti2Al N,and Ti2Al C0.5N0.5[J].Met Mater Trans,2000,31A:1857-1865.
    [6]Lin Z J,Zhuo M J,Li M S,et al.Synthesis and microstructure of layered-ternary Ti2Al N ceramic[J].Scripta Materialia 2007,56:1115-1118.
    [7]Ming Y,Mei B C,Zhu J Q,et al.Synthesis of high-purity bulk Ti2Al N by spark plasma sintering(SPS)[J].Ceramics International,2008,34:1439.
    [8]Liu Yi,Li Yingxin,Li Fan,et al.Shouwu Guo,Zhongqi Shi,Highly textured Ti2Al N ceramic prepared via thermal explosion followed by edgefree spark plasma sintering[J].Scripta Materialia,2017,136:55-58.
    [9]Cui B,Sa R,Jayaseelan D D,et al.Microstructural evolution during high-temperature oxidation of spark plasma sintered Ti2Al N ceramics[J].Acta Mater,2012,60:1079-1092.
    [10]Luo Y M,Li S Q,Pan W,et al.Machinable and mechanical properties of sintered Al2O3-Ti3SiC2composites[J].Journal of Materials Science,2004,39(9):3137-3140.
    [11]Yang Jian,Pan Limei,Gu Wei,et al.Microstructure and mechanical properties of in situ synthesized(Ti B2+Ti C)/Ti3Si C2composites[J].Ceramics International,2012,38:649-655.
    [12]Li J Y,Me Q S,Cui Y Y,et al.Production of Al2O3-Ti2Al N composite with novel combination of high temperature properties[J].Materials Science and Engineering A,2014,607:6-9.
    [13]Uda M,A New Process for Preparation of Ultrafine Metal Particles[J].Bull.Jpn.Inst.Met.1983,22:412-420.
    [14]Wakai F,Kato H.Superplasticity of TZP/Al2O3composite[J].Adv.Ceram.Mater.,1988,3:71-76.
    [15]Nieh T G,McNally C M,Wadsworth J.Superplastic properties of a fine-grained yttria-stabilizd tetragonal polycrystal of Zirconia[J].Scripta Metall.,1988,22:1297-1300.