...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Research >Effect of MoSi_2 distribution on room and high temperature mechanical properties of aluminum matrix nanocomposites
【24h】

Effect of MoSi_2 distribution on room and high temperature mechanical properties of aluminum matrix nanocomposites

机译：MoSi_2分布对铝基纳米复合材料室温和高温力学性能的影响

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

Nanocomposites of 2024 aluminum-MoSi_2 were prepared using mechanical alloying method followed by cold and hot pressing. Influences of volume fraction and distribution of nanosized MoSi_2 reinforcement on mechanical properties of the composites were investigated. Microstructural characterization was carried out by scanning electron microscopy and energy dispersive spectroscopy. Mechanical properties of the nanocomposites were evaluated via hardness, wear, and also room and high temperature compression tests. The results showed that although the distribution of low content of MoSi_2 nanoparticles in the matrix is homogeneous, with increasing the reinforcement fraction, the tendency of agglomeration is gradually intensified. The addition of reinforcing particles continuously brings a considerable enhancement in the mechanical properties of the matrix alloy but by exceeding a certain amount of the reinforcement fraction, this improvement reduces mainly because of the microstructure in-homogeneity. In addition, the nanocomposite with 3 vol% MoSi_2 exhibits the optimum mechanical properties at ambient temperature.
机译：采用机械合金化方法，然后冷，热压制备2024铝-MoSi_2纳米复合材料。研究了纳米MoSi_2增强材料的体积分数和分布对复合材料力学性能的影响。通过扫描电子显微镜和能量色散光谱进行了微结构表征。通过硬度，磨损以及室温和高温压缩测试评估了纳米复合材料的机械性能。结果表明，虽然低含量的MoSi_2纳米颗粒在基体中分布均匀，但随着增强比例的增加，聚结趋势逐渐增强。增强颗粒的添加连续地显着提高了基体合金的机械性能，但是通过超过一定量的增强分数，这种改进主要由于微观结构的不均匀性而降低。另外，具有3体积％的MoSi 2的纳米复合材料在环境温度下表现出最佳的机械性能。

著录项

  • 来源
    《Journal of Materials Research》 |2016年第12期|1741-1747|共7页
  • 作者

    Mahmood Sameezadeh; Masoud Emamy; Hassan Farhangi;

  • 作者单位

    Faculty of Mechanical & Energy Engineering, Shahid Beheshti University, A.C., Tehran, Iran;

    School of Metallurgy and Materials, College of Engineering, University of Tehran, Tehran, Iran;

    School of Metallurgy and Materials, College of Engineering, University of Tehran, Tehran, Iran;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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