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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Stanovení fázových rovnovách systému Ni-Al-W pomocí modulu Parrot v programu Thermocalc
 Popovič, J. ; Brož, P. ; Buršík, Jiří
Eexperimental data on equilibrium phase structure of four Ni-Al-W alloys were obtained.Consequently these data were used for optimization of selected thermodynamic parameters.
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Study of quarternary Ni-base alloys
 Picha, R. ; Buršík, Jiří ; Brož, P.
Phase structure of Ni-Al-Cr-Ti and Ni-Al-Cr-Ta alloys was studied at 1000 and 1100C by means of analytical electron microscopy.The coexistence of phases, their compositions and phase ratios in studied alloys showed good agreement with calculations.
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Simulated element redistributions in Ni-based superalloys weldments
 Brož, P. ; Buršík, Jiří ; Sopoušek, J. ; Picha, R.
The diffusion and phase precipitation processes in welded joints of pure Al-Cr-Ni system and low alloyed Al-Cr-Ni-X systems (where X means Co, W, or Ti) were simulated using CALPHAD method and DICTRA software. The equilibrium calculations allowed to predict phase diagram cross-sections for the Al-Cr-Ni-X systems. The performed simulations based on local equilibrium condition in diffusion couple enabled to describe the phase transformation process and obtain redistribution of alloying species, activity profiles, and other time-distance dependences for other relevant values in diffusion-affected zone of the Al-Cr-Ni / Al-Cr-Ni-X weldments.
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