Korngrenzensegregation

Grenzflächen und Grenzbereiche in kristallinen Werkstoffen

Segregation in metallischen Werkstoffen

Korngrenzensegregation

Korngrenzensegregation bezeichnet die anreicherungsbedingte chemische Inhomogenität an Korngrenzen infolge von Differenzen in Löslichkeit, Bindungsenergie und Diffusionskinetik. Sie kann Versprödung (z.B. Phosphor in Stählen), Korrosionsneigung oder Phasenausscheidungen an Grenzflächen fördern, aber auch zielgerichtet zur Grenzflächenstabilisierung genutzt werden. Analysiert wird sie mittels Atomsondentomographie, STEM-EDS/EELS oder Auger-Spektroskopie und durch thermodynamische Modelle beschrieben.

Verwandte Tags

Neue Inhalte

Atom probe tomography analysis for solid oxide cell materials

Chemnitzer, R. (Speaker)¹; Rice, K.¹; Martin, I.¹; Hubert, M.²; Celikbilek, O.²; Laurencin, J.²

Thermodynamics of Grain Boundary Segregation in Fe-Ni-Cr Alloy Systems

Murugan, J. (Speaker)¹; Darvishi Kamachali, R.¹

A correlative approach for investigating grain boundary segregation of tramp elements in Ti interstitial free steel

Kostwein, N. (Speaker)¹; Kickinger, C.²; Schnitzer, R.¹

Ab initio informed microstructure modelling in steels

Scheiber, D. (Speaker)¹

On the potential of residual Cu in steels

Elbeltagy, A. (Speaker)¹; Gramlich, A.²; Krupp, U.²

Highlight Lecture

Grain-boundary precipitation during early stages of liquid-metal embrittlement of an advanced high-strength steel

Ikeda, Y.¹; Chakraborty, A.²; Chassemi-Armaki, H.³; Darvishi-Kamachali, R.¹; Maaß, R. (Speaker)¹

Effect of combined additional B and Mo on recrystallization behavior in steel

Yasuyuki, O. (Speaker)¹

FEMS EUROMAT 2023

Influence of Multi-Element Grain Boundary Segregation on Static Recrystallization in Ferritic Steels

Jechtl, T.¹; Romaner, L.²; Scheiber, D. (Speaker)¹

FEMS EUROMAT 2023

Grain boundary segregation using an improved Machine-Learning approach: the role of grain boundary symmetry

Demange, G. (Speaker)¹; Borges, Y.¹; Zapolsky, H.¹; patte, R.¹

FEMS EUROMAT 2023

First consistent high throughput segregation assessment for Mg, Al, Ti, Fe, Ni, Cu, Nb, Mo, Ta, and W using ab initio and ML methods

Scheiber, D. (Speaker)¹; Peil, O.¹; Razumovskiy, V.¹; Romaner, L.²

FEMS EUROMAT 2023

Beliebte Inhalte

On the Composition and Nanomechanical Response of δ-Phase and γ′′-Free Zone in Alloy 718

Rielli, V. (Speaker)¹; Best, J.²; Primig, S.¹; Theska, F.¹; Yao, Y.¹

EuroSuperalloys 2022 - 4th European Symposium on Superalloys and their Applications

Ab initio informed microstructure modelling in steels

Scheiber, D. (Speaker)¹

Ab initio informed microstructure and process modelling of metals

Scheiber, D. (Speaker)¹

FEMS EUROMAT 2023

Precipitation of Secondary Phases at Annealing of Nanocrystalline Co1Cr0.25Fe1Mn1Ni1 Alloy with 2 AT. % of Carbon

Ivanisenko, J. (Speaker)¹; Kübel, C.²; Lu, Y.²

FEMS EUROMAT 2023

Interface segregation in Ni-base alloys: application of DFT data in classical and ML models and verification by experiments

Razumovskiy, V. (Speaker)¹; Ecker, W.¹; Peil, O.¹; Scheiber, D.¹

First-principles study of H and C segregation at grain boundaries in ferritic steels

Azocar Guzman, A. (Speaker)¹; Janisch, R.²

FEMS EUROMAT 2023

A correlative approach for investigating grain boundary segregation of tramp elements in Ti interstitial free steel

Kostwein, N. (Speaker)¹; Kickinger, C.²; Schnitzer, R.¹

Thermodynamics of Grain Boundary Segregation in Fe-Ni-Cr Alloy Systems

Murugan, J. (Speaker)¹; Darvishi Kamachali, R.¹

Highlight Lecture

Grain-boundary precipitation during early stages of liquid-metal embrittlement of an advanced high-strength steel

Ikeda, Y.¹; Chakraborty, A.²; Chassemi-Armaki, H.³; Darvishi-Kamachali, R.¹; Maaß, R. (Speaker)¹

Heterogeneous-nanostructured SUS316LN stainless steel and the specific properties

Miura, H. (Speaker)¹; Oba, Y.¹; Watanabe, C.²

FEMS EUROMAT 2023

Site preference of monovacancies at Σ5, Σ9 and Σ11 grain boundaries in copper

Korzhavyi, P. (Speaker)¹; Lousada, C.¹

Influence of Multi-Element Grain Boundary Segregation on Static Recrystallization in Ferritic Steels

Jechtl, T.¹; Romaner, L.²; Scheiber, D. (Speaker)¹

FEMS EUROMAT 2023

Highlight Lecture

A case study in high-throughput grain boundary solute segregation analysis in Ni base alloys

Mai, H.L. (Speaker)¹; Hickel, T.¹; Neugebauer, J.¹

FEMS EUROMAT 2023

The microstructural evolution of CM247LC manufactured through Laser Powder Bed Fusion

Christofidou, K. (Speaker)¹; Markanday, F.²; Miller, J.R.²; Livera, E.¹; Jones, N.²; Pickering, E.³; Li, W.⁴; Pardhi, Y.⁴; Stone, H.²

EuroSuperalloys 2022 - 4th European Symposium on Superalloys and their Applications

Site-specific micromechanics of impurity-containing grain boundaries supported by correlative atom probe tomography

Best, J.P. (Speaker)¹

Grain boundary segregation using an improved Machine-Learning approach: the role of grain boundary symmetry

Demange, G. (Speaker)¹; Borges, Y.¹; Zapolsky, H.¹; patte, R.¹

FEMS EUROMAT 2023

Mutual interplay between grain boundary segregation and structure transitions revealed by the density-based model

Wallis, T. (Speaker)¹; Darvishi Kamachali, R.¹

Oral-Poster-Presentation

Creep Deformation and Damage Tolerance of Ta-added PM Superalloys

Bai, J. (Speaker)¹

EuroSuperalloys 2022 - 4th European Symposium on Superalloys and their Applications

Highlight Lecture

First-principles study of hydrogen enhanced decohesion in ferritic steel grain boundaries

Azocar Guzman, A. (Speaker)¹; Hartmaier, A.¹; Janisch, R.¹

First consistent high throughput segregation assessment for Mg, Al, Ti, Fe, Ni, Cu, Nb, Mo, Ta, and W using ab initio and ML methods

Scheiber, D. (Speaker)¹; Peil, O.¹; Razumovskiy, V.¹; Romaner, L.²

FEMS EUROMAT 2023

Density of states as feature for machine learning grain boundary segregation

Dösinger, C. (Speaker)¹; Hammerschmidt, T.²; Peil, O.³; Scheiber, D.³; Romaner, L.¹

FEMS EUROMAT 2023

Atomistic Assessment of the Solute-Solute Interaction Spectrum in a Polycrystal

Matson, T. (Speaker)¹; Schuh, C.¹

Correlative grain boundary segregation analysis on a nickel-base alloy: atom probe tomography and theoretical validation

Ebner, A.S. (Speaker)¹; Maier-Kiener, V.¹; Razumovskiy, V.²

Deconvoluting residual stress effects on (Hf-Nb-Ta-Zr)C hard coatings through nanoindentation and microcantilever fracture

Gopalan, H. (Speaker)¹; Amalraj, M.²; Dehm, G.³; Hans, M.⁴; Kirchlechner, C.⁵; Schneider, J.⁴

Study of Ga Induced Defect Phase Transformations in Mg Σ7 GB

Mathews, P. (Speaker)¹; Zhang, S.¹; Scheu, C.¹; Janisch, R.²; Hickel, T.¹; Neugebauer, J.¹

FEMS EUROMAT 2023

On the potential of residual Cu in steels

Elbeltagy, A. (Speaker)¹; Gramlich, A.²; Krupp, U.²

Atom probe tomography analysis for solid oxide cell materials

Chemnitzer, R. (Speaker)¹; Rice, K.¹; Martin, I.¹; Hubert, M.²; Celikbilek, O.²; Laurencin, J.²

The effect of grain boundary elements on hot cracking of additively manufactured nickel-base superalloys

Kontis, P. (Speaker)¹; Antonov, S.²; Blandin, J.-J.³; Després, A.³; Martin, G.³; Mayer, C.⁴; Rauch, E.³; Tassin, C.³; Vad, O.¹; Veron, M.³

EuroSuperalloys 2022 - 4th European Symposium on Superalloys and their Applications

Effect of combined additional B and Mo on recrystallization behavior in steel

Yasuyuki, O. (Speaker)¹

FEMS EUROMAT 2023

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