Experimental investigation and thermodynamic modeling of the Cu–Ag–Si ternary system

Qiu, Chengliang; Hu, Biao; Wang, Xiuyu; Wang, Qingping; Min, Fanfei; Du, Yong

doi:10.1016/j.jct.2020.106172

Cited by 10 publications

(1 citation statement)

References 28 publications

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“…The thermodynamic descriptions of the Cu-based ternary systems were considerable efforts of our previous attempts to establish a thermodynamic database for multicomponent Cu alloys. [11][12][13] Yet, the thermodynamic parameters of the Cu-Nb-Ni system are not available in the open literature to the best of our knowledge. In response to this, the purposes of the present work are (1) to determine the phase equilibria associated with the NbNi 3 and Nb 7 Ni 6 phases in the Cu-Nb-Ni system by means of x-ray diffraction (XRD) and scanning electron microscopy with energy dispersive x-ray spectroscopy (SEM/EDS), (2) to obtain a set of self-consistent thermodynamic parameters for the Cu-Nb-Ni system by the CALPHAD approach.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation and Thermodynamic Modeling of the Phase Equilibria in the Cu-Nb-Ni Ternary System

Zhou

Shi

et al. 2021

J. Phase Equilib. Diffus.

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The phase equilibria of the Cu-Nb-Ni system were investigated via a combination of key equilibrated alloys and thermodynamic modeling. Twelve different compositions of ternary alloys were prepared to determine the isothermal sections at 700, 800 and 900°C, by means of x-ray diffraction and scanning electron microscopy with energy dispersive x-ray spectroscopy. The three-and twophase regions were determined. The solubilities of the NbNi 3 and Nb 7 Ni 6 phases were measured. No ternary compound was found in this ternary system. Based on the experimental equilibria data from the literature and the present work, a thermodynamic description of the Cu-Nb-Ni system was carried out by using the CALPHAD (CALculation of PHAse Diagrams) method. The substitutional model and sublattice model were employed to describe the solution phases and intermediate phases, respectively. A set of self-consistent thermodynamic parameters of the Cu-Nb-Ni system was conclusively obtained. Most of the reliable experimental data were reproduced by the present thermodynamic modeling.

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Section: Introductionmentioning

confidence: 99%