Solute partitioning on solidification of nickel-base ternary alloys

Kagawa, Akio; Hirata, Marcelo Kioshi; Sakamoto, Y.

doi:10.1007/bf00580130

Cited by 19 publications

(2 citation statements)

References 9 publications

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“…In addition to various investigations of aluminum alloys and steels, some work has also been done on nickel-based alloys. While the main interest of Kagawa et al 138 was in the experimental determination of partition coefficients, they have also predicted concentration distributions considering both Scheil conditions and back diffusion in some ternary nickel alloys. Boettinger et al 64 investigated microsegregation in an eight-component nickel-based superalloy, including back diffusion.…”

Section: Numerical Models Using Calculated Phase Diagramsmentioning

confidence: 99%

Predicting microstructure and microsegregation in multicomponent alloys

Kraft¹,

Chang

1997

JOM

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OverviewAccurate predictions of microstructure and microsegregation in metallic alloys are highly important for applications such as process optimization and alloy development. This article gives an overview of the methods developed during the past 30 years for solidification simulation on a microscopic scale, with a special emphasis on multicomponent alloys. Analytical approaches as well as advanced numerical models coupled with greatly simplified phase diagrams and thermodynamically calculated phase diagrams have been critically reviewed. Factors that influence the predictions, such as solid-state diffusion, coarsening of dendrite arms, undercooling effects, and, most importantly, the accuracy of the phase diagram are discussed, and suggestions for further research are given.

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Section: Numerical Models Using Calculated Phase Diagramsmentioning

confidence: 99%

Predicting microstructure and microsegregation in multicomponent alloys

Kraft¹,

Chang

1997

JOM

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“…This method has been designed to study the coarsening phenomena of Al-Cu alloys [19,20] and cast iron [21,22]. When the holding time is sufficient, it can be applied to obtain the equilibrium liquid-solid interface [23][24][25][26]. In addition, when holding time is set as 0 before quenching, it can be adopted to investigate the evolution of microstructure, including the solidification path of carbon steels [27].…”

Section: Introductionmentioning

confidence: 99%

Microsegregation and solidification characteristics of an advanced high strength steel – part II: experimental validation

Han

Gao

Song

et al. 2021

Ironmaking & Steelmaking

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Good knowledge of the redistribution characteristic of solute elements is essential for the design and the production of new alloying systems. Part I of this series demonstrated the deviations of microsegregation predictions on an advanced high strength steel (AHSS) caused by equilibrium partition coefficients based on the analytical microsegregation model. In this study, the aim is to conduct a feasible experiment to assess the microsegregation and solidification characteristics of the AHSS steel and to validate the effect of partition coefficients on microsegregation predictions. The SQ method (solidification followed by quenching) was adopted for validation in this study. Solid fraction evolution was obtained on the basis of quenched solidification microstructures to compare with predicted solidification paths. Subsequently, EPMA mappings were performed on quenched microstructures to generate the concentration profiles of Mn in the liquid phase, and the measured data were used to assess the predicted degree of microsegregation.

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Cr-Ni-Si (Chromium-Nickel-Silicon)

2007

Landolt-Börnstein - Group IV Physical Chemistry

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Solute partitioning on solidification of nickel-base ternary alloys

Cited by 19 publications

References 9 publications

Predicting microstructure and microsegregation in multicomponent alloys

Predicting microstructure and microsegregation in multicomponent alloys

Microsegregation and solidification characteristics of an advanced high strength steel – part II: experimental validation

Cr-Ni-Si (Chromium-Nickel-Silicon)

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