• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Research >Aluminum-based nanocomposites with hybrid reinforcements prepared by mechanical alloying and selective laser melting consolidation
【24h】

Aluminum-based nanocomposites with hybrid reinforcements prepared by mechanical alloying and selective laser melting consolidation

机译：通过机械合金化和选择性激光熔融固结制备的具有混合增强材料的铝基纳米复合材料

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

In this study, Aluminum-based nanocomposites with hybrid reinforcements were successfully prepared by mechanical alloying, followed by consolidation using selective laser melting (SLM). The evolution of particle morphology and microstructural features of the milled powders at various milling times was studied. The results indicated that the milled powder particles experienced a coarsening stage at the early 5 h milling and followed by a continuous refinement during 5-20 h milling. After 20 h of milling, the original coarse needle-like Al_(3.21)Si_(0.47) evolved into nanometer/submicrometer-sized spherical Al_(3.21)Si_(0.47). Meanwhile, both fine Al_(3.21)Si_(0.47) and ex-situ nanoscale TiN particles distributed uniformly within the Al matrix. By SLM processing of the 20-h powder, a near fully dense part with a uniform microstructure consisting of circularly dispersed and submicrometer-sized reinforcement particles embedded in α-Al matrix was obtained. The Vickers hardness and coefficient of friction of the SLM-processed part reached 178 HV_(0.1) and 0.38, respectively.
机译：在这项研究中，通过机械合金化，然后使用选择性激光熔融（SLM）固结，成功制备了具有混杂增强材料的铝基纳米复合材料。研究了不同研磨时间下研磨粉的颗粒形态和微观结构特征的演变。结果表明，研磨后的粉末颗粒在研磨前5 h经历了粗化阶段，然后在研磨5-20 h内连续细化。研磨20小时后，原始的粗针状Al_（3.21）Si_（0.47）演变为纳米/亚微米级球形Al_（3.21）Si_（0.47）。同时，Al_（3.21）Si_（0.47）细粉和易位纳米TiN颗粒均均匀分布在Al基体内。通过20 h粉末的SLM处理，获得了一个几乎完全致密的部分，该部分具有均匀的微观结构，该微观结构由嵌入在α-Al基质中的圆形分散的亚微米级增强颗粒组成。经SLM处理的零件的维氏硬度和摩擦系数分别达到178 HV_（0.1）和0.38。

著录项

  • 来源
    《Journal of Materials Research》 |2015年第18期|2816-2828|共13页
  • 作者

    Chenglong Ma; Dongdong Gu; Donghua Dai; Wenhua Chen; Fei Chang; Pengpeng Yuan; Yifu Shen;

  • 作者单位

    College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu Province, People's Republic of China Institute of Additive Manufacturing (3D Printing), Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu Province, People's Republic of China;

    College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu Province, People's Republic of China Institute of Additive Manufacturing (3D Printing), Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu Province, People's Republic of China;

    College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu Province, People's Republic of China Institute of Additive Manufacturing (3D Printing), Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu Province, People's Republic of China;

    College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu Province, People's Republic of China Institute of Additive Manufacturing (3D Printing), Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu Province, People's Republic of China;

    College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu Province, People's Republic of China Institute of Additive Manufacturing (3D Printing), Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu Province, People's Republic of China;

    College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu Province, People's Republic of China Institute of Additive Manufacturing (3D Printing), Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu Province, People's Republic of China;

    College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu Province, People's Republic of China Institute of Additive Manufacturing (3D Printing), Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu Province, People's Republic of China;

  • 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