Simulacije strukture zrn aluminijevih zlitin z metodo celičnih avtomatov

zaključna naloga Razvojno raziskovalnega programa I. stopnje Strojništvo

Viktor Govže (Author), Božidar Šarler (Mentor)

Abstract

Razvita in numerično implementirana je simulacija mikrostrukture in mikroizcejanja v dveh dimenzijah za problem strjevanja večsestavinskih aluminijevih zlitin. Iz makroskopskega simulacijskega okolja za polkontinuirno litje je pridobljena temperaturna zgodovina za del področja na katerem je simulirana mikrostruktura. Upoštevana je heterogena nukleacija in anizotropna površinska energija. Postopek reševanja temelji na kombinaciji metode celičnih avtomatov in končnih volumnov. Na podlagi lineariziranega diagrama je doseženo kvalitativno ujemanje izračunov zlitine EN AW-2011 z eksperimentalnimi podatki.

Keywords

diplomske naloge;aluminijeve zlitine;mikrostruktura;celični avtomati;metoda končnih volumnov;lineariziran fazni diagram;ukrvljenost;

Data

Language:	Slovenian
Year of publishing:	2020
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FS - Faculty of Mechanical Engineering
Publisher:	[V. Govže]
UDC:	620.18:669.715(043.2)
COBISS:	28141059
Views:	977
Downloads:	142
Average score:	0 (0 votes)
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Other data

Secondary language:	English
Secondary title:	Simulation of grain structure of aluminum alloys with cellular automata method
Secondary abstract:	Simulation of grain structure and microsegregation of multicomponent aluminum alloys during solidification is developed and numerically implemented. Input temperature history for microstructure development is obtained from macroscopic simulation environment for semi-continuous casting. Heterogenous nucleation is taken into account, as well as anisotropic surface energy. The solution process is based on combination of cellular automata and finite volume method. Using linearized phase diagram, qualitative agreement of simulation results and experimental data for alloy EN AW-2011 is obtained.
Secondary keywords:	thesis;aluminum alloys;microstructure;cellular automata;finite volume method;linearized phase diagram;curvature;
Type (COBISS):	Final paper
Study programme:	0
Thesis comment:	Univ. v Ljubljani, Fak. za strojništvo
Pages:	XIII, 40 f.
ID:	12025830