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Materials Science and Engineering of Powder Metallurgy >

2022 , Vol. 27 >Issue 4: 351 - 359

DOI: https://doi.org/10.19976/j.cnki.43-1448/TF.2022028

Theoretical Research

Experimental determination and thermodynamic assessment of the Zr-Cr-Y ternary system

  • QIAO Hui ,
  • HU Biao ,
  • ZENG Gang ,
  • JIN Chenggang ,
  • GAO Jian
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  • 1. School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China;
    2. Anhui International Joint Research Center for Nano Carbon-based Materials and Environmental Health,Huainan 232001, China

Received date: 2022-03-18

  Revised date: 2022-04-21

  Online published: 2022-06-07

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Abstract

The phase equilibria of the Zr-Cr-Y system was investigated by combination of key experiments and CALPHAD (calculation of phase diagrams) methods. Eight ternary alloys were prepared to determine the isothermal sections of the Zr-Cr-Y system at 1 000, 900, 800 and 600 ℃ by means of X-ray diffraction (XRD) and scanning electron microscope with energy dispersive X-ray spectroscopy (SEM/EDS). The results show that there are three-phase regions, i.e., BCC(Cr)+HCP(Y)+αCr2Zr, BCC(Zr)+HCP(Y)+αCr2Zr and HCP(Zr)+HCP(Y)+αCr2Zr in this system. Based on the experimental equilibria data obtained in the present work, thermodynamic modeling of the Zr-Cr-Y ternary system was performed by the CALPHAD method. A set of accurate thermodynamic parameters of the Zr-Cr-Y system were obtained. The calculated results are in good agreement with most of the reliable experimental data.

Key words： Zr-Cr-Y system; CALPHAD method; thermodynamic model; phase diagram; experimental determination

Cite this article

QIAO Hui , HU Biao , ZENG Gang , JIN Chenggang , GAO Jian . Experimental determination and thermodynamic assessment of the Zr-Cr-Y ternary system[J]. Materials Science and Engineering of Powder Metallurgy, 2022 , 27(4) : 351 -359 . DOI: 10.19976/j.cnki.43-1448/TF.2022028

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