以Ni、Al、Ti以及碳纳米管(CNTs)为原料,采用自蔓延高温合成(SHS)方法制备出含CNTs-TiC增强相的NiAl基复合材料;分析复合材料的物相组成、微观结构及成分分布,并探讨微观组织的形成机制.结果表明:合成产物主要为NiAl和TiC及少量未反应的CNTs;在Ni+ Al体系中加入少量Ti+ CNTs时,CNTs作为碳源和形核中心与Ti原子结合生成TiC颗粒,在CNTs周围形成尺寸细小的TiC颗粒或TiC薄层,当加入的Ti+ CNTs含量增加时,TiC颗粒充分长大,呈现八面体或立方体形态,一部分弥散分布在NiAl基体中,一部分在NiAl晶界处团聚;随着Ti+ CNTs的加入,NiAl晶粒得到显著细化,原位合成的TiC颗粒增强了复合材料的显微硬度和抗压强度,CNTs作为增强纤维,通过裂纹桥联及纤维拔出等机制强化材料的断裂韧性,CNTs-TiC的复合强化对材料起到增强增韧作用.
参考文献
| [1] | Satoru Ishihara;Tetsuya Koishi;Takuya Orikawa.Synthesis of intermetallic NiAl compound nanoparticles by pulsed wire discharge of twisted Ni and Al wires[J].Intermetallics,20124(4):134-142. |
| [2] | Eryong Liu;Junhong Jia;Yaping Bai;Wenzhen Wang;Yimin Gao.Study on preparation and mechanical property of nanocrystalline NiAl intermetallic[J].Materials & design,2014Jan.(Jan.):596-601. |
| [3] | 侯世香;刘东雨;刘宗德;马一民.NiAl金属间化合物的研究概述[J].金属热处理,2007(7):60-64. |
| [4] | 郭建亭;周兰章;李谷松.高温结构金属间化合物及其强韧化机理[J].中国有色金属学报,2011(1):1-34. |
| [5] | M. Mohammadnezhad;M. Shamanian;M.H. Enayati;M. Salehi;A. Hoseynian.Microstructures and properties of NiAl-TiC nanocomposite coatings on carbon steel surfaces produced by mechanical alloying technique[J].Surface & Coatings Technology,2014:180-187. |
| [6] | 任克刚;陈克新;周和平;宁晓山;金海波.燃烧合成NiAl/TiC复合材料及其微观形貌[J].稀有金属材料与工程,2007(z1):848-851. |
| [7] | Y. Chen;H.M. Wang.Laser melted TiC reinforced nickel aluminide matrix in situ composites[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,20051/2(1/2):49-54. |
| [8] | Ali Akbar Shokati;Nader Parvin;Naser Sabzianpour.In situ synthesis of NiAl-NbB_2 composite powder through combustion synthesis[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2013:141-146. |
| [9] | 徐桂华;卢振;张凯锋.脉冲电流辅助烧结和真空热压烧结对NiAl-Al2O3微观组织和力学性能的影响[J].材料工程,2012(5):76-80,86. |
| [10] | Ali Akbar Shokati;Nader Parvin;Mohammad Shokati.Combustion synthesis of NiAl matrix composite powder reinforced by TiB_2 and TiN participates from Ni-Al-Ti-BN reaction system[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2014:637-643. |
| [11] | L.Y. Sheng;F. Yang;J.T. Guo;T.F. Xi;H.Q Ye.Investigation on NiAl-TiC-Al_2O_3 composite prepared by self-propagation high temperature synthesis with hot extrusion[J].Composites, Part B. Engineering,20131(1):785-791. |
| [12] | X. Zhu;T. Zhang;D. Marchant;V. Morris.Combustion synthesis of TiC-NiAl composite by induction heating[J].Journal of the European Ceramic Society,201013(13):2781-2790. |
| [13] | 武振生;王树奇;陈康敏;苗润生.Ti-C-Al-Ni系热爆复合产物TiC/NiAl的组织形态研究[J].稀有金属材料与工程,2006(z1):87-90. |
| [14] | C.L. Yeh;S.H. Su;H.Y. Chang.Effects of TiC addition on combustion synthesis of NiAl in SHS mode[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,20051/2(1/2):85-93. |
| [15] | L.J. Groven;J.A. Puszynski.Combustion synthesis and characterization of nickel aluminide-carbon nanotube composites[J].Chemical engineering journal,2012:515-525. |
| [16] | Dong H. Nam;Yun K. Kim;Seung I. Cha.Effect of CNTs on precipitation hardening behavior of CNT/Al-Cu composites[J].Carbon: An International Journal Sponsored by the American Carbon Society,201213(13):4809-4814. |
| [17] | PANG Lai-xue;ZHANG Jin-sheng;XU Jing;SUN Kang-ning.Effect of adding carbon nanotubes on stress of Fe_3Al intermetallics[J].中国有色金属学报（英文版）,2009(05):1201-1205. |
| [18] | 李静文;吴智雄;黄传军;李来风.多壁碳纳米管改性氰酸酯/环氧树脂基纳米复合材料的力学性能[J].材料研究学报,2014(8):561-566. |
| [19] | Feng Xue;Sui Jiehe;Feng Yan;Cai Wei.Preparation and elevated temperature compressive properties ofmulti-walled carbon nanotube reinforced Ti composites[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,20106(6):1586-1589. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%