Search Results - "Zapolsky, Helena"

Effect of Stress on Spinodal Decomposition in Binary Alloys: Atomistic Modeling and Atom Probe Tomography by Dahlström, Alexander, Danoix, Frederic, Hedström, Peter, Odqvist, Joakim, Zapolsky, Helena

“…Self-organizing nanostructure evolution through spinodal decomposition is a critical phenomenon determining the properties of many materials. Here, we study…”
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β'' needle-shape precipitate formation in Al-Mg-Si alloy: Phase field simulation and experimental verification by Mao, Hong, Kong, Yi, Cai, Dan, Yang, Mingjun, Peng, Yingbiao, Zeng, Yinping, Zhang, Geng, Shuai, Xiong, Huang, Qi, Li, Kai, Zapolsky, Helena, Du, Yong

“…Morphology evolution of β'' with Aspect ratio λ=a/b Evolution of λ of β'' different considerations. [Display omitted] •Precipitates with different orientation…”
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Size-Dependent Solute Segregation at Symmetric Tilt Grain Boundaries in α -Fe: A Quasiparticle Approach Study by Zapolsky, Helena, Vaugeois, Antoine, Patte, Renaud, Demange, Gilles

“…In the present work, atomistic modeling based on the quasiparticle approach (QA) was performed to establish general trends in the segregation of solutes with…”
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A phase field model for snow crystal growth in three dimensions by Demange, Gilles, Zapolsky, Helena, Patte, Renaud, Brunel, Marc

“…Snowflake growth provides a fascinating example of spontaneous pattern formation in nature. Attempts to understand this phenomenon have led to important…”
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Precision Thermal Treatments, Atom Probe Characterization, and Modeling to Describe the Fe-Cr Metastable Miscibility Gap by Dahlström, Alexander, Danoix, Frederic, Hedström, Peter, Odqvist, Joakim, Selleby, Malin, Zapolsky, Helena

“…The Fe-Cr metastable miscibility gap has been studied by high-precision thermal treatments, Vickers micro-hardness (HV) measurements, and atom probe tomography…”
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Atomic scale formation mechanism of the Amorphous-Nanocrystalline biphase structure in TiSiN Coating: Phase field crystal simulation and experimental characterization by Liu, Zheyuan, Zapolsky, Helena, Tang, Sai, Patte, Renaud, Mao, Hong, Du, Yong, Qiu, Lianchang, Zhang, Li

“…[Display omitted] •The formation of the amorphous-nanocrystalline biphase structure follows an obvious four-step mechanism.•Before the nucleation of…”
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Induced side-branching in smooth and faceted dendrites: theory and phase-field simulations by Demange, Gilles, Patte, Renaud, Zapolsky, Helena

“…The present work is devoted to the phenomenon of induced side branching stemming from the disruption of free dendrite growth. We postulate that the secondary…”
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Atomistic Modelling of η-Fe2C Formation During Low-Temperature Tempering of Martensitic Carbon Steel by Schwab, Felix K., Lavrskyi, Mykola, Patte, Renaud, Zapolsky, Helena

“…The control of carbide formation is crucial for the development of advanced steels. One of the more stable carbides occurring at room temperature ageing of…”
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Influence of grain boundaries, interface roughness and non-collinear magnetic configurations in the AF layer on the exchange bias properties of F/AF nanodots: A numerical investigation by Kanso, Haydar, Patte, Renaud, Zapolsky, Helena, Ledue, Denis

“…•Realistic model : grain boundaries (GB), roughness and magnetic frustration.•Using Monte Carlo simulations and atomic density function theory.•GB are…”
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Mapping formation mechanisms and transformation regimes of multiple Fe precipitates in Cu-Fe-Co alloy during casting process by Chen, Kaixuan, Chen, Yumeng, Zhao, Chenyu, Zhang, Fanyun, Chen, Xiangkai, Ming, Kaisheng, Zapolsky, Helena, Zhu, Yuzhi, Chen, Xiaohua, Mao, Huahai, Wang, Zidong

“…Precipitate features including size, morphology, crystal structure, etc., are important parameters determining the performance of precipitate-strengthened…”
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Atomistic study of the fcc→bcc transformation in a binary system: Insights from the Quasi-particle Approach by Demange, G., Lavrskyi, M., Chen, K., Chen, X., Wang, Z.D., Patte, R., Zapolsky, H.

“…[Display omitted] In this work, the Quasi-particle Approach (QA) is applied to qualitatively reproduce the underlying mechanisms of the displacive fcc (γ) →…”
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3D phase field modeling of the morphology of WC grains in WC–Co alloys: The role of interface anisotropy by Li, Han, Du, Yong, Long, Jianzhan, Ye, Zhijian, Zheng, Zhoushun, Zapolsky, Helena, Demange, Gilles, Jin, Zhanpeng, Peng, Yingbiao

“…[Display omitted] Understanding the morphological evolution of tungsten carbides (WC) grains is one of a few key factors to control the mechanical properties…”
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Nanostructure in Fe0.65Cr0.35 close to the upper limit of the miscibility gap by Dahlström, Alexander, Danoix, Frederic, Hedström, Peter, Odqvist, Joakim, Zapolsky, Helena

“…The nanostructure of an Fe0.65Cr0.35 alloy has been investigated by atom probe tomography after high-precision thermal treatments close to the upper limit of…”
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Growth kinetics and morphology of snowflakes in supersaturated atmosphere using a three-dimensional phase-field model by Demange, Gilles, Zapolsky, Helena, Patte, Renaud, Brunel, M.

“…Simulating ice crystal growth is a major issue for meteorology and aircraft safety. Yet, very few models currently succeed in reproducing correctly the…”
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A multi-scale study of the interaction of Sn solutes with dislocations during static recovery in α-Fe by 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.

“…The properties of engineering materials can be improved by optimising the microstructural developments during annealing processes. Here, we investigate the…”
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Precipitation of γ′ in the γ binder phase of WC-Al-Co-Ni cemented carbide: A phase-field study by Peng, Yingbiao, Du, Yong, Stratmann, Matthias, Long, Jianzhan, Liu, Yuling, Mao, Hong, Zapolsky, Helena

“…High-temperature properties of WC-Co cemented carbides can be greatly improved by introducing ordered γ′ precipitates (L12 structure) into disordered γ…”
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Morphological instability of iron-rich precipitates in Cu Fe Co alloys by Chen, K.X., Korzhavyi, P.A., Demange, G., Zapolsky, H., Patte, R., Boisse, J., Wang, Z.D.

“…The mechanical properties of metallic materials are determined by their microstructure, and in particular, the different morphologies of precipitates lead to…”
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Tracking the path of dislocations across ordered Al3Zr nano-precipitates in three dimensions by Lefebvre, W., Masquelier, N., Houard, J., Patte, R., Zapolsky, H.

“…We report on the shear–bypassing transition of chemically ordered Al3Zr nanoprecipitates. Observation of complex combinations of lattice translations, revealed…”
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Temperature hysteresis of the order-disorder transition in carbon-supersaturated α-Fe by Maugis, Philippe, Danoix, F., Zapolsky, Helena, Cazottes, Sophie, Gouné, Mohamed

“…Although many works have been devoted to the order-disorder transition in carbon-supersaturated α-Fe, all seem to have overlooked the temperature hysteresis…”
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Effect of interstitial carbon distribution and nickel substitution on the tetragonality of martensite: A first-principles study by Chentouf, S., Cazottes, S., Danoix, F., Goune, M., Zapolsky, H., Maugis, P.

“…By using first principles calculations, the effects of carbon distribution and of 25 at.% of nickel substitution on the tetragonality of ferrous martensite…”
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