The mechanism of grain growth and thermal stability in Ni-1 at.% Pb alloy

Chen, Z.; Tang, Yuanhui; Qing, Tao; Chen, Q.; Liang, Tu

doi:10.1016/j.jallcom.2015.11.202

Cited by 3 publications

(1 citation statement)

References 19 publications

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“…The microstructural evolution and the refinement mechanism of the highly-undercooled rapid solidification in Ni-based alloys have been studied extensively. An important outcome of high undercooling experiments is the observation of an abrupt grain refinement at a critical value DT* which has been analyzed in a variety of Ni-based alloys, such as pure Ni [19], Ni-B [15], DD3 [19], Ni-Cu [20] and Ni-C [21]. It indicates that the grain refinement transition is a rather universal process occurring in undercooled melts.…”

Section: Model Derivationmentioning

confidence: 99%

The thermodynamic stability induced by solute co-segregation in nanocrystalline ternary alloys

Liang

Chen

Yang

et al. 2017

International Journal of Materials Research

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The thermodynamic stability induced by solute co-segregation in nanocrystalline ternary alloysThe grain growth and thermodynamic stability induced by solute co-segregation in ternary alloys are presented. Grain growth behavior of the single-phase supersaturated grains prepared in Ni-Fe-Pb alloy melt at different undercoolings was investigated by performing isothermal annealings at T = 400 8C -800 8C. Combining the multicomponent Gibbs adsorption equation and Guttmann's grain boundary segregation model, an empirical relation for isothermal grain growth was derived. By application of the model to grain growth in Ni-Fe-Pb, Fe-Cr-Zr and Fe-Ni-Zr alloys, it was predicted that driving grain boundary energy to zero is possible in alloys due to the co-segregation induced by the interactive effect between the solutes Fe/Pb, Zr/Ni and Zr/Cr. A non-linear relationship rather than a simple linear relation between 1/D* (D* the metastable equilibrium grain size) and ln(T) was predicted due to the interactive effect.

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Section: Model Derivationmentioning

confidence: 99%

The thermodynamic stability induced by solute co-segregation in nanocrystalline ternary alloys

Liang

Chen

Yang

et al. 2017

International Journal of Materials Research

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High-Efficiency Inhibition of Gravity Segregation in Al–Bi Immiscible Alloys by Adding Lanthanum

et al. 2018

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Liquid phase separation and core–shell morphology of Al₇₅Bi₉Sn₁₆immiscible alloy

Jia

Zhao

Teng

et al. 2019

Physics and Chemistry of Liquids

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The mechanism of grain growth and thermal stability in Ni-1 at.% Pb alloy

Cited by 3 publications

References 19 publications

The thermodynamic stability induced by solute co-segregation in nanocrystalline ternary alloys

The thermodynamic stability induced by solute co-segregation in nanocrystalline ternary alloys

High-Efficiency Inhibition of Gravity Segregation in Al–Bi Immiscible Alloys by Adding Lanthanum

Liquid phase separation and core–shell morphology of Al₇₅Bi₉Sn₁₆immiscible alloy

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The mechanism of grain growth and thermal stability in Ni-1 at.% Pb alloy

Cited by 3 publications

References 19 publications

The thermodynamic stability induced by solute co-segregation in nanocrystalline ternary alloys

The thermodynamic stability induced by solute co-segregation in nanocrystalline ternary alloys

High-Efficiency Inhibition of Gravity Segregation in Al–Bi Immiscible Alloys by Adding Lanthanum

Liquid phase separation and core–shell morphology of Al75Bi9Sn16immiscible alloy

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Liquid phase separation and core–shell morphology of Al₇₅Bi₉Sn₁₆immiscible alloy