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Optimalizace makrostruktury odlitků z niklových slitin / Optimization of macrostructure of nickel-based alloys castings

This diploma thesis is focusing on possibilities of influencing casting’s structure of nickel superalloy Inconel 713LC by force effects caused by vibration and rotation during crystallization. In this research were cast three test castings of turbine wheels with different solidification conditions that have affected the size and distribution of the grains. The aim was to compare the different microstructure and macrostructure of castings and then compare the dependence of grain refinement on mechanical properties. Changes in the structure were analyzed by means of light and electron microscopy methods after the fracture of test bars.

Identiferoai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:230185
Date January 2012
CreatorsŠmíd, Michal
ContributorsŇuksa, Petr, Roučka, Jaromír
PublisherVysoké učení technické v Brně. Fakulta strojního inženýrství
Source SetsCzech ETDs
LanguageCzech
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/masterThesis
Rightsinfo:eu-repo/semantics/restrictedAccess

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