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Národní úložiště šedé literatury Nalezeno 4 záznamů.  Hledání trvalo 0.00 vteřin. 
Influence of thermal treatment regime of Al-Si alloys on mechanical properties
 Letovanec, Juraj ; Kolmačka, Marek (oponent) ; Roučka, Jaromír (vedoucí práce)
The aim of this thesis is influence of precipitation hardening regime, specifically quench rate, on mechanical properties of aluminium alloy A356 (AlSi7Mg0.3). Samples were after solution treatment quenched into water with different temperatures and age hardened. Tensile strength tests, hardness tests and microstructure observations were done after heat tretment.
Úplný záznam
Determination of influence of planetary-mill parameters on properties of powder blends
 Letovanec, Juraj ; Moravčík, Igor (oponent) ; Čížek, Jan (vedoucí práce)
This aim of the thesis is preparation of mechanically alloyed HEA powders of alloy AlCoCrNiFeTi0,5 by planetary ball milling. The process is influenced by a number of variables. Influences of three such parameters, namely milling revolutions, pro-cessing time and diameter of the grinding medium, were studied on morphology, phase and chemical properties of the prepared powder. Further outcome of the thesis is a suc-cessfully prepared HEA alloyed powder.
Úplný záznam
Influence of thermal treatment regime of Al-Si alloys on mechanical properties
 Letovanec, Juraj ; Kolmačka, Marek (oponent) ; Roučka, Jaromír (vedoucí práce)
The aim of this thesis is influence of precipitation hardening regime, specifically quench rate, on mechanical properties of aluminium alloy A356 (AlSi7Mg0.3). Samples were after solution treatment quenched into water with different temperatures and age hardened. Tensile strength tests, hardness tests and microstructure observations were done after heat tretment.
Úplný záznam
Determination of influence of planetary-mill parameters on properties of powder blends
 Letovanec, Juraj ; Moravčík, Igor (oponent) ; Čížek, Jan (vedoucí práce)
This aim of the thesis is preparation of mechanically alloyed HEA powders of alloy AlCoCrNiFeTi0,5 by planetary ball milling. The process is influenced by a number of variables. Influences of three such parameters, namely milling revolutions, pro-cessing time and diameter of the grinding medium, were studied on morphology, phase and chemical properties of the prepared powder. Further outcome of the thesis is a suc-cessfully prepared HEA alloyed powder.
Úplný záznam

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