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MICROSTRUCTURE AND MECHANICAL BEHAVIOR OF AMORPHOUS Al–Cu–Ti METAL FOAMS SYNTHESIZED BY SPARK PLASMA SINTERING

Author

Listed:
  • MAOYUAN LI

    (College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China†Beijing System Design Institute of Electro-Mechanic Engineering, Beijing 100854, P. R. China)

  • LIN LU

    (#x2020;Beijing System Design Institute of Electro-Mechanic Engineering, Beijing 100854, P. R. China)

  • ZHEN DAI

    (#x2020;Beijing System Design Institute of Electro-Mechanic Engineering, Beijing 100854, P. R. China)

  • YIQIANG HONG

    (#x2020;Beijing System Design Institute of Electro-Mechanic Engineering, Beijing 100854, P. R. China)

  • WEIWEI CHEN

    (#x2021;Department of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China)

  • YUPING ZHANG

    (#x2021;Department of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China)

  • YINGJIE QIAO

    (College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China)

Abstract

Amorphous Al–Cu–Ti metal foams were prepared by spark plasma sintering (SPS) process with the diameter of 10mm. The SPS process was conducted at the pressure of 200 and 300MPa with the temperature of 653–723K, respectively. NaCl was used as the space-holder, forming almost separated pores with the porosity of 65 vol%. The microstructure and mechanical behavior of the amorphous Al–Cu–Ti metal foams were systematically investigated. The results show that the crystallinity increased at elevated temperatures. The effect of pressure and holding time on the crystallization was almost negligible. The intermetallic compounds, i.e. Al–Ti, Al–Cu and Al–Cu–Ti were identified from X-ray diffraction (XRD) patterns. It was found that weak adhesion and brittle intermetallic compounds reduced the mechanical properties, while lower volume fraction and smaller size of NaCl powders improved the mechanical properties.

Suggested Citation

  • Maoyuan Li & Lin Lu & Zhen Dai & Yiqiang Hong & Weiwei Chen & Yuping Zhang & Yingjie Qiao, 2017. "MICROSTRUCTURE AND MECHANICAL BEHAVIOR OF AMORPHOUS Al–Cu–Ti METAL FOAMS SYNTHESIZED BY SPARK PLASMA SINTERING," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 24(Supp02), pages 1-11, November.
    • Handle: RePEc:wsi:srlxxx:v:24:y:2017:i:supp02:n:s0218625x18500221
    DOI: 10.1142/S0218625X18500221
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