Stanovení vhodného tvaru zkušebních tyčí pro odstranění vnitřních vad ovlivňujících testování nízko- a vysokocyklové únavy / Design of a suitable shape of test bars used for HCF (high cycle fatigue) and LCF (low cycle fatigue) and elimination of internal defects for reduction of their influence

Description

The topic of this thesis is the formation of microporosity in cast test bars of nickel-base superalloy Inconel 713LC during solidification. The theoretical part consists of nickel alloys, their macrostructure, the method of casting and crystallization of nickel-based superalloys. The second part is devoted to the design of casting conditions, the production of shell molds, the size and shape of grains, evaluation of microporosity by various available methods, comparing the influence of grain size and the proportion of microporosity on the resulting values of the mechanical tests. Experiments were carried out in cooperation with PBS Velká Bíteš and ÚST foundry department.

Links & Downloads

1. http://www.nusl.cz/ntk/nusl-231239

Tags

Additional Fields

Identifer	oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:231239
Date	January 2014
Creators	Hemala, Robert
Contributors	Šustek, Petr, Ňuksa, Petr
Publisher	Vysoké učení technické v Brně. Fakulta strojního inženýrství
Source Sets	Czech ETDs
Language	Czech
Detected Language	English
Type	info:eu-repo/semantics/masterThesis
Rights	info:eu-repo/semantics/restrictedAccess