• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >Effect of milling methods on microstructures and mechanical properties of Al6061-CNT composite fabricated by spark plasma sintering
【24h】

Effect of milling methods on microstructures and mechanical properties of Al6061-CNT composite fabricated by spark plasma sintering

机译：铣削方法对火花等离子体烧结制备Al6061-CNT复合材料的组织和力学性能的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Metal matrix composite (MMC); Carbon nanotubes; High energy ball milling; Mechanical characterization;%In this paper the effect of CNTs additive and different milling techniques on the microstructure and mechanical properties of the A16061-CNTS metal matrix composites was studied. Planetary and horizontal attritor milling with different modes were used as milling techniques. The levels of damage introduced to the surface of multi walls carbon nanotubes (MWCNTs) were characterized through analyzing the Raman peak ratio (I_d/I_g) characteristic of each processed sample. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to study the morphology of the Al-6061alloys and Al-6061-MWCNTs composite powders. X-ray diffraction (XRD) was used for phase identification and the mechanical properties of the composites were determined by means of tensile tests. Despite the level of energy imposed on the powders, among the three used milling modes, the two-stage milling mode including low speed (200 rpm) followed by high speed (1000 rpm) horizontal milling was the most effective in dispersing of CNT, since no clusters were found. Accordingly, the slight addition of CNT (1.5 wt%) could elevate the tensile strength from 265 to 538 MPa, with respect to un-reinforced alloys processed in the same conditions.
机译：金属基复合材料（MMC）；碳纳米管；高能球磨；力学性能；％本文研究了CNTs添加剂和不同研磨方法对A16061-CNTS金属基复合材料的组织和力学性能的影响。使用不同模式的行星式和卧式磨刀机铣削作为铣削技术。通过分析每个已处理样品的拉曼峰比率（I_d / I_g）特征来表征引入多壁碳纳米管（MWCNT）表面的破坏程度。用扫描电子显微镜（SEM）和透射电子显微镜（TEM）研究了Al-6061合金和Al-6061-MWCNTs复合粉末的形貌。 X射线衍射（XRD）用于鉴定相，并通过拉伸试验确定复合材料的机械性能。尽管在粉末上施加了一定程度的能量，但是在三种使用的研磨模式中，包括低速（200 rpm）和高速（1000 rpm）水平研磨的两阶段研磨模式在CNT分散方面最有效，因为找不到集群。因此，相对于在相同条件下加工的未增强合金，少量添加CNT（1.5 wt％）可以将拉伸强度从265 MPa提高到538 MPa。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号