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Nerezové oceli pro kryogenické aplikace zpracované 3D tiskem / Stainless steels for cryogenic applications processed by 3D printing

This thesis deals with properties of austenitic stainless steel 304L processed by SLM technology and tested at room and cryogenics temperatures. Result is description of mechanical properties and microstructure. First step was to develop processing parameters to achieve porosity of prints fell below 0,01 %. Following tensile test showed higher yield and ultimate tensile strength than conventionally fabricated parts, even at temperature -80 °C, but at cost of reduced ductility. Due to deformation and low temperature austenite transformed into martensite. This transformation also occurred in Charpy toughness test, that resulted in ductile to brittle behaviour.

Identiferoai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:443733
Date January 2021
CreatorsGrygar, Filip
ContributorsHutař, Pavel, Koutný, Daniel
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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