A New Theoretical Study of the Cr-Nb System

Schmetterer, Clemens; Khvan, A.; Jacob, Aurélie; Hallstedt, Bengt; Markus, T.

doi:10.1007/s11669-014-0313-y

Cited by 27 publications

(14 citation statements)

References 43 publications

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“…In this way we prove that the C14-NbCr 2 is metastable at all temperatures, which confirms the previous experimental work and analysis [29,30]. Therefore the C14 was treated as a metastable phase in the following assessment.…”

Section: Phases Parameterssupporting

confidence: 89%

“…3. As seen from the figure, the present assessment provides a description of the bcc phase that is more consistent with the first-principles results than previous work [28,30]. The enthalpy of formation of the system at 298 K is presented in Fig.…”

Section: Phases Parameterssupporting

confidence: 87%

“…C14, C15 and C36 Laves phases. For the sake of simplicity and consistency with the multi-component databases, a two-sublattice model for Schmetterer et al [30] Costa Neto et al [27] Pavlu et al [28] SQS-VASP Schmetterer et al [30] Pavlu et al [28] Hong and Fu [35] Yao et al [36] Kellou et al [37] Ormeci et al [ where y i ′ and y i ′′ denote the mole fraction of i in the first and second sublattice, L means the interaction parameter. There are nine stoichiometric end-member compounds in the model.…”

Section: Intermetallic Compoundsmentioning

confidence: 99%

“…The metastable C14 phase can be obtained by extremely fast cooling. In a more recent work, Elyutin and Funke [18] Eremenko et al [20] Goldschmidt and Brand [21] Pan [23] Zakharova and Prokoshkin [22] Rudy [19] Thoma and Perepezko [24] Schmetterer et al [30] analyzed the stability of C14 from several aspects. They accepted the viewpoint that the C14 structure is not stable and then presented a thermodynamic description of the CrNb system without the C14 phase.…”

Section: Phases Parametersmentioning

confidence: 99%

“…Zeng et al [46] Pavlu et al [47] SQS-VASP Zeng et al [46] Pavlu et al [47] SQS-VASP The values from the first-principles calculations were used to consummate the thermodynamic description for bcc and Laves phase. Previous assessments [27,28,30] evaluated the enthalpies of solution phases mainly based on phase diagram data. In order to improve the thermodynamic description, we calculated the energy and volume of the bcc solution phase at 0 K in the present work.…”

Section: Phases Parametersmentioning

confidence: 99%

See 4 more Smart Citations

Thermodynamic modeling of Cr–Nb and Zr–Cr with extension to the ternary Zr–Nb–Cr system

Wang

Zou

et al. 2015

Calphad

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Section: Phases Parameterssupporting

confidence: 89%

Section: Phases Parameterssupporting

confidence: 87%

Section: Intermetallic Compoundsmentioning

confidence: 99%

Section: Phases Parametersmentioning

confidence: 99%

Section: Phases Parametersmentioning

confidence: 99%

See 3 more Smart Citations

Thermodynamic modeling of Cr–Nb and Zr–Cr with extension to the ternary Zr–Nb–Cr system

Wang

Zou

et al. 2015

Calphad

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Laves phases: a review of their functional and structural applications and an improved fundamental understanding of stability and properties

2020

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Laves phases with their comparably simple crystal structure are very common intermetallic phases and can be formed from element combinations all over the periodic table resulting in a huge number of known examples. Even though this type of phases is known for almost 100 years, and although a lot of information on stability, structure, and properties has accumulated especially during the last about 20 years, systematic evaluation and rationalization of this information in particular as a function of the involved elements is often lacking. It is one of the two main goals of this review to summarize the knowledge for some selected respective topics with a certain focus on non-stoichiometric, i.e., non-ideal Laves phases. The second, central goal of the review is to give a systematic overview about the role of Laves phases in all kinds of materials for functional and structural applications. There is a surprisingly broad range of successful utilization of Laves phases in functional applications comprising Laves phases as hydrogen storage material (Hydraloy), as magneto-mechanical sensors and actuators (Terfenol), or for wear- and corrosion-resistant coatings in corrosive atmospheres and at high temperatures (Tribaloy), to name but a few. Regarding structural applications, there is a renewed interest in using Laves phases for creep-strengthening of high-temperature steels and new respective alloy design concepts were developed and successfully tested. Apart from steels, Laves phases also occur in various other kinds of structural materials sometimes effectively improving properties, but often also acting in a detrimental way.

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Temperature Dependence of Laves Phase Composition in Nb, W and Si-Alloyed High Chromium Ferritic Steels for SOFC Interconnect Applications

Niewolak

Savenko

Grüner

et al. 2015

J. Phase Equilib. Diffus.

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A New Theoretical Study of the Cr-Nb System

Cited by 27 publications

References 43 publications

Thermodynamic modeling of Cr–Nb and Zr–Cr with extension to the ternary Zr–Nb–Cr system

Thermodynamic modeling of Cr–Nb and Zr–Cr with extension to the ternary Zr–Nb–Cr system

Laves phases: a review of their functional and structural applications and an improved fundamental understanding of stability and properties

Temperature Dependence of Laves Phase Composition in Nb, W and Si-Alloyed High Chromium Ferritic Steels for SOFC Interconnect Applications

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