Národní úložiště šedé literatury Nalezeno 4 záznamů.  Hledání trvalo 0.01 vteřin. 
3D characterization of material structure using scanning electron microscopy (SEM) and focused ion beam (FIB)
Hradilová, Monika ; Jäger, Aleš ; Lejček, Pavel
The possibilities of analysis can be enhanced by utilizing focused ion beam (FIB). The FIB instrument allows revealing the structure in the third dimension by controlled and precise milling of the material. In combination with electron beam and suitable detector is possible to describe crystallography (EBSD) or chemical composition (EDS) etc. in three dimensions (3D). Thus, it is feasible to define real size, shape and distribution of microstructure features such as grains, grain boundaries, phases, precipitates and micropores.
Structure and properties of ultrafine-grained aluminium alloys prepared by severe plastic deformation (ECAP)
Dám, Karel ; Jäger, Aleš ; Lejček, Pavel
The aim of this work is to find the dependence between Equal-Channel Angular Pressing (ECAP) processing conditions and final microstructure of aluminium alloys based on Al-Mg-Sc.
New models in grain boundary engineering of iron and ferritic steels
Lejček, Pavel ; Šedá, P. ; Kinoshita, Y. ; Jäger, Aleš ; Yardley, V. ; Tsurekawa, S.
Model experiments with growth and annealing of a tricrystal of an Fe-3mass%Si alloy are reported which display inclinations of the grain boundaries to establish low energy orientations.
Microstructure and texture evolution during ecap processing of pure magnesium
Šedá, P. ; Jäger, Aleš ; Lejček, Pavel
The aim of the present work is to outline the microstructure and texture evolution of pure magnesium during severe plastic deformation by ECAP. A suitable temperature for ECAP processing is also discussed.

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