Heat capacity measurement of Zr2Fe and thermodynamic re-assessment of the Fe–Zr system

Saenko, Ivan; Kuprava, A.; Udovsky, A. L.; Fabrichnaya, Olga

doi:10.1016/j.calphad.2019.05.002

Cited by 23 publications

(7 citation statements)

References 36 publications

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“…But Yang et al [42] and Lu et al [43] thought Fe 23 Zr 6 as a stable phase and re-modeled the Fe-Zr system. Saenko et al [14] considered the experimental and theoretical thermochemical properties, [44][45][46] determined the heat capacity of FeZr 2 from 220 to 450 K, agreed with Stein et al [40] that Fe 23 Zr 6 was not an equilibrium phase, and carried out the thermodynamic remodeling of the Fe-Zr system. Their calculated results reproduced the experimental data better, hence the thermodynamic parameters of Saenko et al [14] are directly Fig.…”

Section: Fe-zr Systemmentioning

confidence: 82%

“…Fig. 2 Fe-Zr phase diagram assessed by Saenko et al [14] Fig. 3 Calculated Co-Zr phase diagram (solid line) compared with the previous work [13] (dotted line) and experimental data.…”

Section: Co-fe-zr Systemmentioning

confidence: 90%

“…where the jth interaction parameters j L / Co;Fe , j L / Co;Zr , j L / Fe;Zr , j L / Co;Fe;Zr are taken from Refs. [12][13][14] or optimized in the present work.…”

Section: Solution Phasesmentioning

confidence: 99%

“…Recently, the Co-Fe-Zr isothermal sections between 1273 and 1573 K have been experimentally studied by Wang et al [11] , and the Co-Fe, Co-Zr and Fe-Zr subsystems have been thermodynamically assessed by several researchers. [12][13][14] Whereas the Co-Zr thermodynamic parameters. [13] still need to be adjusted because of the inappropriate thermodynamic model of CoZr and lowtemperature decomposition of CoZr 3 .…”

Section: Introductionmentioning

confidence: 99%

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Thermodynamic Descriptions of the Co–Zr and Co–Fe–Zr Systems

Zhou

Wang

2021

J. Phase Equilib. Diffus.

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The Co-Fe-Zr system and its Co-Zr subsystem were optimized using the CALculation of PHAse Diagram (CALPHAD) approach. The substitutional solution model was used for describing the phases liquid, fcc_A1, bcc_A2 and hcp_A3. Two Laves phases were modeled as (Co,Fe,Zr) 2 (Co,Fe,Zr) 1 , and the phases CoFe and CoZr with the bcc_B2 crystal structure were described as the ordered one of bcc_A2 in the formula (Co,Fe,Va,Zr) 0.5 (-Co,Fe,Va,Zr) 0.5 Va 3 . With limited solubility ranges, all other phases were treated as the line compounds (Co,Fe) m Zr n . An excellent agreement between the reported and calculated results was reached. The reliable thermodynamic parameters of the Co-Fe-Zr system were acquired, which can be well applied to various thermodynamic calculations and materials design.

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Section: Fe-zr Systemmentioning

confidence: 82%

“…Fig. 2 Fe-Zr phase diagram assessed by Saenko et al [14] Fig. 3 Calculated Co-Zr phase diagram (solid line) compared with the previous work [13] (dotted line) and experimental data.…”

Section: Co-fe-zr Systemmentioning

confidence: 90%

“…where the jth interaction parameters j L / Co;Fe , j L / Co;Zr , j L / Fe;Zr , j L / Co;Fe;Zr are taken from Refs. [12][13][14] or optimized in the present work.…”

Section: Solution Phasesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Thermodynamic Descriptions of the Co–Zr and Co–Fe–Zr Systems

Zhou

Wang

2021

J. Phase Equilib. Diffus.

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“…The experimental investigations on the phase relations of the Fe-Zr-Y system [14-20] have been carried out, and several assessments of thermodynamic data have been obtained [21][22][23][24][25][26]. Although there are some controversies about the stability of hex-Fe 2 Zr and Fe 23 Zr 6 , it is widely accepted that both of the two phases exist [3].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of the Phase Relations in the Fe-Zr-Y Ternary System

Song

Yang

et al. 2022

Materials

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The phase relations of the Fe-Zr-Y system at 973 K and 1073 K were experimentally investigated by using the equilibrated alloys. New ternary compounds τ3-Fe3ZrY and τ4-Fe10Zr5Y2 were found in this ternary system. The solubility of Y in Fe2Zr was measured to be 3.5 at.% and the third component can hardly dissolve in the other binary intermetallic phases. Experiments have verified that Fe2.9Zr0.5Y0.5 has a solid solubility ranging from Fe73Zr12Y14 to Fe77Zr9Y13.

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The Effect of Zr on the High‐Temperature Oxidation Resistance of 12Cr Ferritic/Martensitic Steels

Zeng

Zhou

Yang

et al. 2022

steel research int.

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The high‐temperature oxidation resistance of 12Cr ferritic/martensitic steels with Zr contents in the range of 0–1.3607 wt% is investigated at 650 and 800 °C in air. The results show that the oxidation resistance of steels is improved by adding Zr. The oxide layer on the surface of steels after oxidation is mainly composed of MnCr2O4 and Cr2O3, where traces of Mn2O3 and ZrO2 oxides can also be detected there. The oxide layer of steels consists of two layers, that is, the outer Mn‐rich oxides (MnCr2O4, Mn2O3) and the inner Cr‐rich oxides (Cr2O3). For none‐Zr steels oxidized at 650 °C, Cr2O3 oxides are also formed in the outer layer. The addition of Zr promotes the outer oxides to change from Cr2O3 oxides to MnCr2O4 oxides and reduces the growth rate of MnCr2O4 oxides. The effect of Zr on the high‐temperature oxidation resistance of steels can be attributed to its promoting effect on the formation of outer Mn‐rich oxides, which can refine the size of outer Mn‐rich oxides and form a dense outer oxide layer. The dense outer oxide layer can inhibit the inward diffusion of oxygen and improve the oxidation resistance of steel.

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Heat capacity measurement of Zr2Fe and thermodynamic re-assessment of the Fe–Zr system

Cited by 23 publications

References 36 publications

Thermodynamic Descriptions of the Co–Zr and Co–Fe–Zr Systems

Thermodynamic Descriptions of the Co–Zr and Co–Fe–Zr Systems

Experimental Investigation of the Phase Relations in the Fe-Zr-Y Ternary System

The Effect of Zr on the High‐Temperature Oxidation Resistance of 12Cr Ferritic/Martensitic Steels

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