Experimental study and thermodynamic modelling of the ternary system Fe–Ni–Si with re-modelling of the constituent binary systems

Witusiewicz, V.T.; Stryzhyboroda, Oleg; Vinke, S.; Bobzin, Kirsten; Hecht, U.

doi:10.1016/j.jallcom.2022.168118

Cited by 4 publications

(11 citation statements)

References 44 publications

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“…The second phase is probably a mixture of diiron‐ and dinickel‐silicide. Nevertheless, different nickel‐silicides like Ni 31 Si 12 are also possible phases that can occur in Alloy 1 in a very small amount, as has already been shown by experimental studies of the ternary system iron‐nickel‐silicon [32].…”

Section: Resultsmentioning

confidence: 70%

“…This phase was also predicted by the thermodynamic database for the eutectic reaction. Due to the low chromium content, chromium should be present are also possible phases that can occur in Alloy 1 in a very small amount, as has already been shown by experimental studies of the ternary system iron-nickel-silicon [32]. Alloy 2, which could have a partly amorphous or nanocrystalline structure, shows significantly less peaks than the spectrum of Alloy 1, Figure 4b.…”

Section: X-ray Diffraction Analysismentioning

confidence: 68%

“…Based on the results of the completed thermodynamic modelling for the ternary system iron‐nickel‐silicon the authors have further elaborated a proprietary thermodynamic database for the quinary system iron‐nickel‐chrome‐silicon‐boron [32]. This database was used for computing several experimental alloy compositions, among them the three alloys presented in this work.…”

Section: Methodsmentioning

confidence: 99%

“…Fe-Ni [23] FeÀ Ni-Cr [24] Fe-Cr [23] FeÀ Ni-B [25] Fe-Si [23] FeÀ Cr-Si [26] Fe-B [23] FeÀ Cr-B [27] Ni-Cr [23] NiÀ Cr-Si [28] Ni-Si [23] NiÀ Si-B [29] Ni-B [23] CrÀ Si-B [30] Cr-Si [23] FeÀ Si-B [31] Cr-B [23] FeÀ Ni-Si [32] Si-B [23] NiÀ Cr-B [33] F I G U R E 1 Computed phase equilibria as function of temperature using the proprietary database for the iron-nickel-chromiumsilicon-boron alloy system. The calculations clearly show that solidification proceeds along the eutectic reactions "Liquid!FeSi + (Fe, Ni) 2 Si" for alloy 1 (a) and alloy 3 (c) and "Liquid!FCC_Fe ss + M 2 B" for alloy 2 (b), respectively.…”

Section: Availability Of a Thermodynamic Descriptionmentioning

confidence: 99%

“…In particular, available thermodynamic descriptions as well as published data on phase equilibria in ternary iron‐nickel‐silicon system were scarce, calling for additional experimental study. The experimental work dedicated to complement thermodynamic description iron‐nickel‐silicon system by means of key experiments and CALPHAD method is presented in details in our earlier publication [32].…”

Section: Introductionmentioning

confidence: 99%

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Design and characterization of novel iron‐based amorphous brazing foils based on thermodynamic predictions

Bobzin,

Heinemann,

Erck

et al. 2023

Materialwissenschaft Werkst

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Amorphous brazing foils facilitate the brazing process due to their high flexibility. Nickel‐based amorphous brazing foils are already in industrial use. However, as the raw material price for nickel is continuously increasing, more cost‐efficient iron‐based amorphous brazing foils are currently the focus of research. In this study, three alloys in the quinary system iron‐nickel‐chrom‐silicon‐boron will be investigated, which, according to previous predictions of newly developed thermodynamic databases, should exhibit an increased glass forming ability. The production and the characterization of the new iron‐based foils will in turn serve to validate the newly developed thermodynamic databases. With one of the alloys, a new iron‐based partly amorphous brazing foil can successfully be produced, but the other two alloys are too brittle for the brazing process. The results of this study not only show that the newly developed thermodynamic database of the quinary iron‐nickel‐chrome‐silicon‐boron alloy system can provide suitable prediction on the microstructure and melting behavior of the corresponding alloys, but also that it is possible to produce a quaternary iron‐based partly amorphous foil.

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Section: Resultsmentioning

confidence: 70%

Section: X-ray Diffraction Analysismentioning

confidence: 68%

Section: Methodsmentioning

confidence: 99%

Section: Availability Of a Thermodynamic Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Design and characterization of novel iron‐based amorphous brazing foils based on thermodynamic predictions

Bobzin,

Heinemann,

Erck

et al. 2023

Materialwissenschaft Werkst

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Novel Fe‐Based Amorphous Brazing Foils in the Quinary System Fe–Ni–Cr–Si–B

et al. 2023

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Amorphous brazing foils are increasingly used on a wide variety of component geometries because of their flexibility and the resulting ease of application. Due to the recent rapid rise in Ni prices, there is an enormous need for research into the substitution of Ni with Fe within conventionally used Ni‐based amorphous brazing foils. To avoid time‐consuming series of experiments, newly developed thermodynamic databases will be used to predict alloy compositions with a high glass forming ability. Foils should be produced with the Melt‐Spin‐Process and characterized with differential scanning calorimetry and secondary electron microscopy. In addition, the atomic mismatch factor λ of these alloys will be calculated and compared with literature data. Novel Fe‐based brazing foils with different compositions were successfully produced in the alloying system Fe‐Ni‐Cr‐Si‐B. The characterization of these foils indicates the presence of a partly amorphous or nanocrystalline structure. The novel Fe‐based brazing foils are characterized by a simple and cost‐efficient alloying concept. Furthermore, newly developed thermodynamic databases in the Fe–Ni–Cr–Si–B‐system were validated by the successful production of this foils. The prediction of further Fe–based amorphous foils with the aid of thermodynamic calculations can thus be made possible.This article is protected by copyright. All rights reserved.

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Microstructure and Low-Temperature Impact Behavior of ADI Containing Ni

Ma,

Zhang,

et al. 2024

Inter Metalcast

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Experimental study and thermodynamic modelling of the ternary system Fe–Ni–Si with re-modelling of the constituent binary systems

Cited by 4 publications

References 44 publications

Design and characterization of novel iron‐based amorphous brazing foils based on thermodynamic predictions

Design and characterization of novel iron‐based amorphous brazing foils based on thermodynamic predictions

Novel Fe‐Based Amorphous Brazing Foils in the Quinary System Fe–Ni–Cr–Si–B

Microstructure and Low-Temperature Impact Behavior of ADI Containing Ni

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