Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (9): 1070-1074.DOI: 10.11944/j.issn.1000-0518.2015.09.150052

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Synthesis and Mechanical Performances of Bulk Ultrafine Aluminum

TANG Huaguoab,ZHAO Weia,LIU Jianweia,ZHAO Zhenyeb,MA Xianfenga*()   

  1. aState Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
    bUniversity of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2015-02-05 Accepted:2015-05-07 Published:2015-08-31 Online:2015-08-31
  • Contact: MA Xianfeng
  • Supported by:
    Supported by Key Scientific and Technological Project of Jilin Province(No.20150204002GX)

Abstract:

High strength bulk aluminum has been prepared by mechanical milling and press-forming processes. The bulk aluminum exhibits a high tensile strength of 537 MPa and a yield strength of 495 MPa. Characterization of microstructures reveals that the grain size of the bulk aluminum is between 0.5~5 μm. The high strength of pure aluminum is benefit from the fine grain size. The low fabrication cost with mechanical milling and press-forming is suitable for industrialized production.

Key words: bulk ultrafine aluminum, mechanical milling, rapid solidification, grain refinement