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Processing-Microstructure-Property Relationships in a Cu-Rich FeCrMnNiAl High-Entropy Alloy Fabricated by Laser and Electron Beam Powder Bed Fusion. [PDF]
Materials (Basel)Diebel DM, Wegener T, Hu Z, Niendorf T.
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Effect of grain size on grain boundary segregation
Journal of Alloys and Compounds, 1996Abstract A simple thermodynamic calculation to assess the effect of grain size on grain boundary segregation has been performed. It is shown that in binary alloys when the bulk solute content is small, segregation increases with increasing grain size.
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Grain boundary segregation and grain-boundary heterodiffusion
Philosophical Magazine A, 1992Abstract It is shown that nonlinear segregation effects (saturation, interaction of species) lead to nonlinear grain-boundary penetration plots. If the diffusion penetration depth is larger than a critical value, the concentration profiles become linear.
B. S. Bokstein +2 more
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Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1973
Abstract Equilibrium grain boundary segregation levels have been measured on binary and ternary iron alloys with tin and sulphur over a wide temperature range, by means of two complementary techniques: interfacial energy measurements and Auger electron spectroscopy.
M. P. Seah, E. D. Hondros
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Abstract Equilibrium grain boundary segregation levels have been measured on binary and ternary iron alloys with tin and sulphur over a wide temperature range, by means of two complementary techniques: interfacial energy measurements and Auger electron spectroscopy.
M. P. Seah, E. D. Hondros
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Anisotropy of Segregation at Grain Boundaries and Surfaces
Metallurgical and Materials Transactions A, 2006The purpose of this article is to review analytical models of the anisotropy of segregation to grain boundaries (GBs) and surfaces, and to evaluate their predictions. A summary of Gibbsian interfacial thermodynamics is provided as an introduction to the topic. This is followed by a historical overview of previous analytical models. A recently developed
Wynblatt, P., Chatain, D.
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Grain boundary segregation produced by grain boundary movement
Scripta Metallurgica, 1983Experimental evidence of grain boundary enrichment is given in a temperature region where the bulk diffusion is negligible. The phenomenon can be explained by supposing that the grain boundaries gather the dissolved atoms while passing through the grains.
M. Menyhárd, L. Uray
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Grain-Boundary Structure and Segregation
Metal Science Journal, 1972Abstract The grain-boundary embrittlement of metals by impurities has been and continues to be a major problem. However, despite its importance, little is known about the specific impurities responsible for embrittlement, the driving force responsible for segregation, or the mechanism by which the segregated impurities render the material brittle. With
D. F. Stein, A. Joshi
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Boundary condition for grain boundary segregation
[1987] NASECODE V: Proceedings of the Fifth International Conference on the Numerical Analysis of Semiconductor Devices and Integrated Circuits, 1987Impurity segregation at grain boundaries in polycrystalline solid is expressed with a diffusion equation combined with the boundary condition which describes impurity flux into the grain boundaries. At present, for the model of boundary condition for grain boundary segregation, the two following models have been proposed; one is that the interface of a
I. Yamamoto +3 more
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Journal of Physics F: Metal Physics, 1980
Equilibrium grain boundary segregation is assessed in terms of its measurement, theory and industrial significance. Aspects of the phenomenon of this segregation, namely the localisation, chemical system dependence, response to environmental parameters, etc., are discussed in relation to the measurement techniques for grain boundary segregation.
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Equilibrium grain boundary segregation is assessed in terms of its measurement, theory and industrial significance. Aspects of the phenomenon of this segregation, namely the localisation, chemical system dependence, response to environmental parameters, etc., are discussed in relation to the measurement techniques for grain boundary segregation.
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