{"title":"Experimental investigation and thermodynamic re-assessment of the Fe-Ni-W phase diagram","authors":"C.B. Li, Y. Zhang, Z.Q. Wang, D.Y. Shen, K.G. Wang, L.B. Liu, L.G. Zhang","doi":"10.1016/j.calphad.2024.102793","DOIUrl":null,"url":null,"abstract":"<div><div>The isothermal sections of the Fe-Ni-W ternary system at 1073 K and 1273 K were determined using the equilibrium alloy method. The solubility of the third element in the μ-Fe₇W₆, λ-Fe₂W, NiW, and Ni₄W compounds within the Fe-Ni-W ternary system was further refined. In the isothermal sections at 1073 K and 1273 K, 5 three-phase regions and 11 two-phase regions at 1073 K, and 3 three-phase regions and 7 two-phase regions at 1273 K, respectively, were confirmed. No ternary compounds were observed. Based on the existing data of the Fe-Ni-W ternary system and the related binary systems, the thermodynamic reassessment of the Fe-Ni-W ternary system was carried out using the phase diagram calculation method. A new thermodynamic database for the Fe-Ni-W ternary system was developed, and the experimental data showed excellent consistency with the calculated results.</div></div>","PeriodicalId":9436,"journal":{"name":"Calphad-computer Coupling of Phase Diagrams and Thermochemistry","volume":"88 ","pages":"Article 102793"},"PeriodicalIF":1.9000,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Calphad-computer Coupling of Phase Diagrams and Thermochemistry","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0364591624001354","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The isothermal sections of the Fe-Ni-W ternary system at 1073 K and 1273 K were determined using the equilibrium alloy method. The solubility of the third element in the μ-Fe₇W₆, λ-Fe₂W, NiW, and Ni₄W compounds within the Fe-Ni-W ternary system was further refined. In the isothermal sections at 1073 K and 1273 K, 5 three-phase regions and 11 two-phase regions at 1073 K, and 3 three-phase regions and 7 two-phase regions at 1273 K, respectively, were confirmed. No ternary compounds were observed. Based on the existing data of the Fe-Ni-W ternary system and the related binary systems, the thermodynamic reassessment of the Fe-Ni-W ternary system was carried out using the phase diagram calculation method. A new thermodynamic database for the Fe-Ni-W ternary system was developed, and the experimental data showed excellent consistency with the calculated results.
期刊介绍：
The design of industrial processes requires reliable thermodynamic data. CALPHAD (Computer Coupling of Phase Diagrams and Thermochemistry) aims to promote computational thermodynamics through development of models to represent thermodynamic properties for various phases which permit prediction of properties of multicomponent systems from those of binary and ternary subsystems, critical assessment of data and their incorporation into self-consistent databases, development of software to optimize and derive thermodynamic parameters and the development and use of databanks for calculations to improve understanding of various industrial and technological processes. This work is disseminated through the CALPHAD journal and its annual conference.
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