Calculation of glass forming ranges in the ternary Y–Cu–Al system and its sub-binaries based on geometric and Miedema's models

Śniadecki, Z.; Narojczyk, Jakub W.; Idzikowski, B.

doi:10.1016/j.intermet.2012.03.003

Cited by 23 publications

(11 citation statements)

References 26 publications

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“…It is seen that the largest GFA compositions predicted by these indicators are degenerated to the compositions that are close to the sub-binaries, thus unable to reflect the alloying effect by adding a third element. Moreover, by evaluating the ∆PHS, another GFA indicator that combines enthalpy and entropy analysis, it is indicated that the highest GFA is in the vicinity of the composition of Y40Cu31Al29 [35]. Although this also gives a reasonable prediction, there is still discrepancy from the experimental glass formation compositions, which are mostly clustered in the Al-rich corner, as exhibited in Figure 1 and Figure 2.…”

Section: Resultsmentioning

confidence: 91%

“…As the compositions predicted with high GFA are mainly located in the Al-rich corner, i.e., AlxCuyY100−x−y (x = 60-100, y = 0-40), the experimental identified glass formation compositions in the Al-rich corner [20,21,[32][33][34][35] are then marked by the red dots in Figure 2, as they are presented in Figure 1. One can see from Figure 2 that experimental identified glass formation compositions in the Al-rich corner are densely clustered around the pinpointed stoichiometry of Al72Cu10Y18, suggesting that the stability of metallic glasses with ternary compositions around Al72Cu10Y18 are indeed enhanced.…”

Section: Resultsmentioning

confidence: 96%

“…It is also of interest to compare the present results with the results obtained by other thermodynamic calculation methods. In the former studies, several other GFA indicators have been employed to evaluate the glass formation in the Al-Cu-Y system [35]. For example, by calculating the formation enthalpy difference between the amorphous and the solid solution phases ∆H am−ss , the compositions close to Al-Y and Cu-Y sub-binaries are found to exhibit the largest GFA [35].…”

Section: Resultsmentioning

confidence: 99%

“…In the former studies, several other GFA indicators have been employed to evaluate the glass formation in the Al-Cu-Y system [35]. For example, by calculating the formation enthalpy difference between the amorphous and the solid solution phases ∆H am−ss , the compositions close to Al-Y and Cu-Y sub-binaries are found to exhibit the largest GFA [35]. From the normalized entropy change Sσ/kB, the largest GFA has been predicted in sub-binaries close to Cu-Y [35].…”

Section: Resultsmentioning

confidence: 99%

“…For example, by calculating the formation enthalpy difference between the amorphous and the solid solution phases ∆H am−ss , the compositions close to Al-Y and Cu-Y sub-binaries are found to exhibit the largest GFA [35]. From the normalized entropy change Sσ/kB, the largest GFA has been predicted in sub-binaries close to Cu-Y [35]. It is seen that the largest GFA compositions predicted by these indicators are degenerated to the compositions that are close to the sub-binaries, thus unable to reflect the alloying effect by adding a third element.…”

Section: Resultsmentioning

confidence: 99%

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Predicting Composition Dependence of Glass Forming Ability in Ternary Al-Cu-Y System by Thermodynamic Calculation

Wang

Liu

et al. 2014

Metals

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Abstract:The composition dependence of glass forming ability in the ternary Al-Cu-Y system is predicted by thermodynamic calculations based on the Miedema's model and Alonso's method. By comparing the relative energetic status of the amorphous phase versus the solid solution phase, a hexagonal composition region that energetically favoring the metallic glass formation is predicted. The glass formation driving force and crystallization resistance are further calculated and the composition of Al72Cu10Y18 is pinpointed with the largest glass forming ability in the Al-Cu-Y system. The calculation results are well supported by the experimental observations reported in the literature.

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Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Predicting Composition Dependence of Glass Forming Ability in Ternary Al-Cu-Y System by Thermodynamic Calculation

Wang

Liu

et al. 2014

Metals

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Amorphous‐Crystalline Heterostructured Nanoporous High‐Entropy Alloys for High‐Efficiency pH‐Universal Water Splitting

Yu,

Gong,

Qiao

et al. 2024

Small Methods

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Developing high‐efficiency durable electrocatalysts in wide pH range for water splitting is significant for environmentally‐friendly synthesis of renewable hydrogen energy. Herein, a facile method by dealloying designable multicomponent metallic glass precursors is reported to synthesize amorphous‐crystalline heterostructured nanoporous high‐entropy alloys (AC‐HEAs) of CuAgAuPtPd, CuAgAuIrRu, and CuAgAuPtPdIrRu, heaped up by nanocrystalline particles with an average size of 2‐3 nm and the amorphous glued phase. The synthesized AC‐HEA‐CuAgAuPtPd owns highly catalytic performances for hydrogen evolution reaction (HER), with 9.5 and 20 mV to reach 10 mA·cm−2 in 0.5 m H2SO4 and 1.0 m KOH, and AC‐HEA‐CuAgAuIrRu delivers 208 and 200 mV for oxygen evolution reaction (OER). Moreover, a two‐electrode electrolyzer made of the AC‐HEA‐CuAgAuIrRu bifunctional electrodes exhibit a low cell voltage of 1.48 and 1.49 V in the acidic and alkaline conditions at 10 mA·cm−2 for overall water splitting. Combining the enhanced catalytic activities from nanoscale amorphous structure and atom‐level synergistic catalyst in AC‐HEAs provides an effective pathway for pH‐universal electrocatalysts of water splitting.

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Glass-Forming Ability of Fe-Ni Alloys Substituted by Group V and VI Transition Metals (V, Nb, Cr, Mo) Studied by Thermodynamic Modeling

Śniadecki

2020

Metall Mater Trans A

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The glass-forming ability (GFA) of Fe-Ni-TM alloys, where TM = V, Nb, Cr, Mo, was determined utilizing thermodynamic modeling. Enthalpies of formation of amorphous state were calculated and analyzed along with normalized mismatch entropy and glass-forming ability parameter. All thermodynamic quantities were qualitatively compared with enthalpies of formation of solid solution and experimental results. Due to the fact that FeNi-based amorphous ribbons are used nowadays in magnetoelastic sensors (MES), which can be used in biomedical or chemical applications, discussion is concentrated mainly on the substitution effect of group V and VI transition metals on the improvement of GFA. In this sense, group V elements are preferred, with Nb as the most promising candidate among all analyzed TM elements. This is a consequence of significant differences of potential and density of electrons at the boundary of Wigner-Seitz cell comparing to Fe and Ni, which in turn leads to more negative values of interfacial enthalpy and higher driving force for vitrification.

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Calculation of glass forming ranges in the ternary Y–Cu–Al system and its sub-binaries based on geometric and Miedema's models

Cited by 23 publications

References 26 publications

Predicting Composition Dependence of Glass Forming Ability in Ternary Al-Cu-Y System by Thermodynamic Calculation

Predicting Composition Dependence of Glass Forming Ability in Ternary Al-Cu-Y System by Thermodynamic Calculation

Amorphous‐Crystalline Heterostructured Nanoporous High‐Entropy Alloys for High‐Efficiency pH‐Universal Water Splitting

Glass-Forming Ability of Fe-Ni Alloys Substituted by Group V and VI Transition Metals (V, Nb, Cr, Mo) Studied by Thermodynamic Modeling

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