Search Results - "Wierzba Bartek"

Effect of surface mechanical treatment on the oxidation behavior of FeAl-model alloy by Nowak, Wojciech J., Serafin, Daria, Wierzba, Bartek

“…Fe-based alloys are commonly used in almost every sector of human life. For different reasons, the surfaces of the real parts are prepared using different…”
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The Kirkendall Effect and Multi-component Diffusion Simulations by Wierzba Bartek

“…In this paper, some aspects of the determination of the concentration profile during diffusion in NiAl–Ti and CMSX4 systems are shown by means of numerical…”
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Void Formation during Diffusion – Two-Dimensional Approach by Wierzba Bartek

“…The final set of equations defining the interdiffusion process in solid state is presented. The model is supplemented by vacancy evolution equation. The…”
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Characterization of the Interface Between α and β Titanium Alloys in the Diffusion Couple by Motyka, Maciej, Nowak, Wojciech J., Wierzba, Bartek, Chrominski, Witold

“…The aim of the research was to investigate the microstructural changes caused by diffusion through interface between α and β titanium solid solutions. For this…”
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Competition between Chemical and Gravity Forces in Binary Alloys by Wierzba Bartek, Mashimo Tsutomu, Danielewski Marek

“…We present the first experimental results of the growth of Cu6Sn5 and Cu3Sn under an external force field – during the sedimentation process. The results are…”
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Effect of Ti and Ta on Oxidation Kinetic of Chromia Forming Ni-Base Superalloys in Ar-O2-Based Atmosphere by Nowak Wojciech J., Wierzba Bartek, Sieniawski Jan

“…In the present study, two commercially available Ni-base superalloys, namely Rene 80 which contains Ti and IN 792 containing Ti and Ta, were investigated…”
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The Analysis of the Residual Stress Evolution during Cycling Oxidation of the Ni-base Superalloys at High Temperature by Nowak, Wojciech J, Ochal, Kamil, Filip, Ryszard, Wierzba, Bartek

“…The lifetime of the elements made of Ni-base superalloys can be strongly increased by introducing compressive stresses. Such stresses increase the resistance…”
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Effect of Substrate Roughness on Oxidation Resistance of an Aluminized Ni-Base Superalloy by Nowak, Wojciech J., Ochał, Kamil, Wierzba, Patrycja, Gancarczyk, Kamil, Wierzba, Bartek

“…In the present work, it is shown that the surface preparation method used on two Ni-based superalloys prior to aluminizing chemical vapor deposition (CVD) is…”
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The Sequence of the Phase Growth during Diffusion in Ti-Based Systems by Wierzba, Bartek, Nowak, Wojciech J., Serafin, Daria

“…The interdiffusion in Ti-based alloys was studied. It was shown that during diffusion at 1,123 K formation of four intermetallic phases occurs. The diffusion…”
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The Role of Substrate Surface Roughness on in-Pack Aluminization Kinetics of Ni-Base Superalloy by Nowak, Wojciech J., Tomków, Małgorzata, Wierzba, Patrycja, Gancarczyk, Kamil, Wierzba, Bartek

“…The Ni-base superalloys facing high temperature require further protection against high temperature oxidation. One of the most common methods providing high…”
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The Marker Conservation Law in Multiphase Systems by Wierzba Bartek, Wędrychowicz Stanisław, Skibiński Wojciech

“…The knowledge of the fundamental understanding such as composition–structure–mechanical property relationships caused by Kirkendall effect is in progress and…”
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Phase competition in ternary Ti–Ni–Al system by Wierzba, Bartek

“…In this paper the reactive diffusion in Ti–Ni–Al system is discussed at 1173 K. The calculation method based on the binary approach is presented. The key…”
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The Ni-Al-Zr Multiphase Diffusion Simulations by Wierzba Bartek, Romanowska Jolanta, Zagula-Yavorska Maryana, Markowski Janusz, Sieniawski Jan

“…The generalized Darken method allows a quantitative description of diffusion mass transport in multi-phase materials. The method characterizes the diffusion…”
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The vacancies formation and agglomeration under centrifugal force by Wierzba, Bartek

“…In this paper the vacancies formation and agglomeration under centrifugal force — sedimentation will be analyzed. The evolutionary algorithm for diffusion and…”
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Competition between Kirkendall and Frenkel effects during multicomponent interdiffusion process by Wierzba, Bartek

“…In this work the competition between Kirkendall effect caused by intrinsic diffusion coefficients and vacancy generation and evolution is discussed. The…”
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The Kirkendall and Frenkel effects during 2D diffusion process by Wierzba, Bartek

“…The two-dimensional approach for inter-diffusion and voids generation is presented. The voids evolution and growth is discussed. This approach is based on the…”
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Thermodynamically consistent bi-velocity mass transport phenomenology by Danielewski, Marek, Wierzba, Bartek

“…A thermodynamically consistent framework is developed to combine the convection and dissipative contributions with the mass and energy fluxes in multicomponent…”
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The Kirkendall effect in binary diffusion couples by Wierzba, Bartek

“…The understanding of the phenomenological process related to the position of the Kirkendall plane is still lacking. In this study some aspects of Kirkendall…”
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Entropy production in Cu–Fe–Ni alloys — The bi-velocity method by Wierzba, Bartek

“…The bi-velocity method allows quantitative description of the complex diffusion mass transport process for an unlimited number of elements. The method deals…”
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The effect of surface preparation on high temperature oxidation of Ni, Cu and Ni-Cu alloy by Serafin, Daria, Nowak, Wojciech J., Wierzba, Bartek

“…•Surface roughness had been evaluated by contact profilometer and fractal analysis.•Influence of surface preparation on oxidation kinetic for pure Ni, Cu and…”
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