Volume 38 Issue 6
Dec.  2023
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Article Navigation >  Development and Application of Materials  > 2023  >  38(6): 52-57,62
QIU Xingyu, FANG Hongmei, CAO Lili, YANG Dengke, YE Yuesong. Study on Kinetics of Multilayer TiAl3 Compound Prepared by Accumulative Roll-bonding[J]. Development and Application of Materials, 2023, 38(6): 52-57,62.
Citation: QIU Xingyu, FANG Hongmei, CAO Lili, YANG Dengke, YE Yuesong. Study on Kinetics of Multilayer TiAl3 Compound Prepared by Accumulative Roll-bonding[J]. Development and Application of Materials, 2023, 38(6): 52-57,62.
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Study on Kinetics of Multilayer TiAl3 Compound Prepared by Accumulative Roll-bonding

  • School of Mechanical and Energy Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China

  • Received Date: 2023-03-29
    Available Online: 2024-01-10
    Abstract
  • The solid phase reaction of the Ti/Al multilayers prepared by accumulative roll-bonding is studied by differential scanning calorimetry, X-ray diffractometer and scanning electron microscope. The kinetic characteristics of the TiAl3 phase formation in the Ti/Al multilayers prepared by accumulative roll bonding are revealed. The DSC curve obtained by testing the rolled sample according to the differential scanning calorimetry method contains two exothermic peaks, and the shape is very similar to the DSC curve obtained by the magnetron sputtering of Ti/Al films. The two exothermic peaks represent the nucleation of TiAl3 phase and the thickening of the TiAl3 phase layer in the ARB Ti/Al multilayers, respectively. In order to better understand the nucleation of the TiAl3 phase, the isothermal DSC test is carried out on the Ti/Al multilayer samples prepared by ARB. The JMA model is comparison and analysis, and a modified model based on the kinetics of phase formation in the deposition film reaction is established, which makes the DSC curve calculated more consistent with the actual measured DSC curve. The results show that in the Ti/Al multilayer samples prepared by ARB, the kinetic characteristics of the nucleation, lateral growth and subsequent thickening of the TiAl3 phase can be explained by the modified kinetics model of the phase formation in the process of sputtering deposition of films.

     

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