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材料工程  2014, Vol. 0 Issue (1): 75-78,84    DOI: 10.3969/j.issn.1001-4381.2014.01.014
  测试与表征 本期目录 | 过刊浏览 | 高级检索 |
搅拌针形状对搅拌摩擦加工制备CNTs/铝基复合材料均匀性的影响
李文龙, 夏春, 邢丽, 柯黎明
南昌航空大学 航空制造工程学院, 南昌 330063
Influence of Pin Shape on Homogeneity of CNTs Distribution in CNTs/Al Composite Fabricated by Friction Stir Processing
LI Wen-long, XIA Chun, XING Li, KE Li-ming
School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, China
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摘要 采用搅拌摩擦加工技术(FSP)制备碳纳米管增强铝基(CNTs/Al)复合材料,研究了搅拌针形状对复合材料均匀性的影响。结果表明:搅拌针形状影响到塑化材料的迁移路径和程度,导致复合材料宏观形貌和均匀性发生变化。相比柱形,锥形搅拌针周围金属温度高,挤压区易于扩张,抽吸-挤压效应较强,形成的中心区面积大且均匀性较好;双螺纹搅拌针由于在板材上下两端形成两个材料迁移通道,挤压区相互重叠,材料混合程度加强,中心区CNTs分布均匀性最好。
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李文龙
夏春
邢丽
柯黎明
关键词 搅拌摩擦加工CNTs/铝基复合材料搅拌针形状均匀性    
Abstract:A series of CNTs/Al composites were fabricated with friction stir processing(FSP) to investigate the effects of pin shape on the homogeneity of CNTs distribution in the composites. The results show that the paths and degree of the plasticized material flow are influenced by the pin shape, resulting in the variation of the macrographs of composites and homogeneity of CNTs distribution. Compared with cylindrical pin, a higher temperature of the metal around the conical pin promotes the formation of extruded zone more easily, and the effect of suction-extrusion on the plastic materials around pin is stronger. Therefore, the area of the central zone is expanded and the homogeneity of CNTs distribution in this zone is improved. Since double material flow paths are formed in the thickness direction of the plate and the extrusion zones are overlapped during friction stir processing, the mixing extent of the materials fabricated by the double threaded cylindrical pin is enhanced, resulting in homogeneous distribution of CNTs within the central zone.
Key wordsfriction stir processing    CNTs/Al composite    pin shape    homogeneity
收稿日期: 2012-12-20     
1:  TB331  
基金资助:国家自然科学基金资助项目(51265043);江西省自然科学基金资助项目(2010GZS0175)
通讯作者: 邢丽(1959- ),女,教授,主要从事先进连接技术及焊接结构的教学和科研工作,联系地址:江西省南昌市丰和南大道696号南昌航空大学航空制造工程学院(330063)     E-mail: xingli_59@126.com
作者简介: 李文龙(1988- ),男,硕士研究生,主要从事搅拌摩擦加工方面研究工作,联系地址:江西省南昌市丰和南大道696号南昌航空大学航空制造工程学院(330063),E-mail:lwlhehe@163.com
引用本文:   
李文龙, 夏春, 邢丽, 柯黎明. 搅拌针形状对搅拌摩擦加工制备CNTs/铝基复合材料均匀性的影响[J]. 材料工程, 2014, 0(1): 75-78,84.
LI Wen-long, XIA Chun, XING Li, KE Li-ming. Influence of Pin Shape on Homogeneity of CNTs Distribution in CNTs/Al Composite Fabricated by Friction Stir Processing. Journal of Materials Engineering, 2014, 0(1): 75-78,84.
链接本文:  
http://jme.biam.ac.cn/jme/CN/10.3969/j.issn.1001-4381.2014.01.014      或      http://jme.biam.ac.cn/jme/CN/Y2014/V0/I1/75
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