Size-Dependent Solute Segregation at Symmetric Tilt Grain Boundaries in α-Fe: A Quasiparticle Approach Study

Autor: Helena Zapolsky, Antoine Vaugeois, Renaud Patte, Gilles Demange

Publikováno v: Materials, Vol 14, Iss 15, p 4197 (2021)

In the present work, atomistic modeling based on the quasiparticle approach (QA) was performed to establish general trends in the segregation of solutes with different atomic size at symmetric ⟨100⟩ tilt grain boundaries (GBs) in α-Fe. Three typ

Externí odkaz: https://doaj.org/article/6a86ef2a953e471f82e178d30d5923cf

Effect of Stress on Spinodal Decomposition in Binary Alloys: Atomistic Modeling and Atom Probe Tomography

Autor: Frédéric Danoix, Helena Zapolsky, Peter Hedström, Joakim Odqvist, Alexander Dahlström

Publikováno v: Metallurgical and Materials Transactions A. 53:39-49

Self-organizing nanostructure evolution through spinodal decomposition is a critical phenomenon determining the properties of many materials. Here, we study the influence of stress on the morphology of the nanostructure in binary alloys using atomist

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::694adcfb818c25fbf7fa4fff9c5d8bcd
https://doi.org/10.1007/s11661-021-06467-3

Dynamic Atomic Displacements and Athermal Dislocation Glide in Crystals

Autor: Yu. A. Khon, Helena Zapolsky

Publikováno v: Physics of the Solid State. 62:587-591

A dislocation glide mechanism at low temperatures is proposed. The mechanism is based on the inclusion of dynamic atomic displacements, i.e., those caused by nonadiabatic transitions of atoms in a crystal with a dislocation under action of an externa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dfb1960f8fd4f6cf75d80e0003d0f7e0
https://doi.org/10.1134/s1063783420040137

3D phase field modeling of the morphology of WC grains in WC–Co alloys: The role of interface anisotropy

Autor: Jianzhan Long, Yingbiao Peng, Han Li, Zhanpeng Jin, Gilles Demange, Zhijian Ye, Yong Du, Helena Zapolsky, Zhoushun Zheng

Publikováno v: Computational Materials Science
Computational Materials Science, Elsevier, 2021, 196, pp.110526. ⟨10.1016/j.commatsci.2021.110526⟩
Computational Materials Science, 2021, 196, pp.110526. ⟨10.1016/j.commatsci.2021.110526⟩

Understanding the morphological evolution of tungsten carbides (WC) grains is one of a few key factors to control the mechanical properties of the cemented carbides such as wear resistance and toughness. In this work, the three-dimensional (3D) equil

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90b367a8a8efd7269742648d9a413c49
https://hal.archives-ouvertes.fr/hal-03472580

A multi-scale study of the interaction of Sn solutes with dislocations during static recovery in α-Fe

Autor: A. Vaugeois, Myriam Dumont, Phil Cook, N. Mavrikakis, M. Gauvin, W. Saikaly, Henning Friis Poulsen, Can Yildirim, M. Kutsal, Andrea Campos, R. Hubert, Pablo Rodriguez Calvillo, Dominique Mangelinck, Carsten Detlefs, Helena Zapolsky

Publikováno v: Acta Materialia
Acta Materialia, 2019, 174, pp.92-104. ⟨10.1016/j.actamat.2019.05.021⟩
Acta Materialia, Elsevier, 2019, 174, pp.92-104. ⟨10.1016/j.actamat.2019.05.021⟩
Mavrikakis, N, Detlefs, C, Cook, P K, Kutsal, M, Campos, A P C, Gauvin, M, Calvillo, P R, Saikaly, W, Hubert, R, Poulsen, H F, Vaugeois, A, Zapolsky, H, Mangelinck, D, Dumont, M & Yildirim, C 2019, ' A multi-scale study of the interaction of Sn solutes with dislocations during static recovery in α-Fe ', Acta Materialia, vol. 174, pp. 92-104 . https://doi.org/10.1016/j.actamat.2019.05.021

International audience; The properties of engineering materials can be improved by optimising the microstructural developments during annealing processes. Here, we investigate the effect of Sn on the recovery annealing of cold rolled Fe-3%Si alloys.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6096971fcc1e3d4177a581c60b4e58b2
https://doi.org/10.1016/j.actamat.2019.05.021