Utjecaj temperature žarenja na mikrostrukturu i tvrdoću AlSi10Mg dijelovaproizvedenih SLM aditivnim postupkom

Scientific paper - Original scientific paper

• Author: Sanja Šolić
• Author: Natalija Dolić
• Author: Vlado Tropša
• Editor: Ivan Stojanović
• Collaboration: Zagreb: Hrvatsko društvo za zaštitu materijala (HDZaMa)
• Author's institution: University of Zagreb; Faculty of Metallurgy; (Department of Process Metallurgy); (Laboratory of Iron, Steel and Founding)
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Production Mechanical Engineering
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Metallurgy; Process Metallurgy

Abstract (croatian)

SLM proizvodnja Co-Cr dentalnih legura je relativno novo područje inženjerstva materijala. Utjecaj pojedinih parametara SLM postupka na strukturu i svojstva konsolidiranih Co-Cr dentalnih legura i njihova interakcija predstavlja važno područje za istraživanje. Preliminarna istraživanja koja su provedena na proporcionalnim uzorcima izrađenima od istog komercijalnog praha Co-Cr legure SLM postupkom na strojevima različitih proizvođača koristeći preporučene parametre postupka pokazala su velike razlike u mikrostrukturi dobivenih uzoraka te značajna rasipanja vrijednosti mehaničkih svojstava konsolidiranog materijala (vlačna i savojna čvrstoća, istezanje i žilavost). Rasipanja rezultata nisu uočena samo između uzoraka izrađenih na različitim strojevima, već i između uzoraka različitih šarži na istom stroju. Dobiveni rezultati preliminarnih istraživanja pokazuju da u samoj proizvodnji Co-Cr legura SLM postupkom dolazi do utjecaja pojedinih parametara koji značajno utječu na kvalitetu dobivenog proizvoda. Ta povezanost glavnih tehnoloških parametara SLM proizvodnje sa strukturom i svojstvima proizvoda i njihova interakcija je velikim dijelom nepoznato područje i predstavlja veliki znanstveno istraživački potencijal, gdje rezultati istraživanja mogu doprinijeti optimizaciji strukture i svojstava dentalnih Co-Cr legura. U ovom istraživanju planira se napraviti ispitivanje utjecaja pojedinih parametara DSLM postupka, i to snage lasera te brzine taljenja na mehanička svojstva (vlačnu, tlačnu i savojnu čvrstoću) Co-Cr legure za dentalnu namjenu. Također će se napraviti i analiza mikrostrukture kojom će se utvrditi utjecaj pojedinih parametara na ispitivana mehanička svojstva.

Abstract (english)

SLM production of Co-Cr dental alloys is a relatively new field of materials engineering. The influence of individual parameters of the SLM procedure on the structure and properties of consolidated Co-Cr dental alloys and their interaction is an important area for research. Preliminary studies conducted on proportional samples made of the same commercial powder Co-Cr alloy SLM process on machines of different manufacturers using the recommended process parameters showed large differences in the microstructure of the obtained samples and significant differences in mechanical properties of consolidated material (tensile and flexural strength, elongation and toughness). Scattering of the results was observed not only between samples made on different machines, but also between samples of different batches on the same machine. The obtained results of preliminary research show that in the production of Co-Cr alloys by SLM process there is an influence of certain parameters that significantly affect the quality of the obtained product. This connection of the main technological parameters of SLM production with the structure and properties of products and their interaction is largely an unknown area and represents great scientific research potential, where research results can contribute to optimizing the structure and properties of dental Co-Cr alloys. In this research, it is planned to examine the influence of certain parameters of the DSLM procedure, namely laser power and melting rate on the mechanical properties (tensile, compressive and flexural strength) of Co-Cr alloy for dental purposes. A microstructure analysis will also be performed to determine the influence of individual parameters on the examined mechanical properties.

• Keywords (croatian): SLM; aditivne tehnologije; dentalne legure; mehanička svojstva materijala
• Keywords (english): SLM; additive technologies; dental alloys; mechanical properties
• Language: croatian
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Submitted version
• Publication title: Conference Proceedings International conference on materials - corrosion, heat treatment, testing and tribology, 2021
• Numbering: pp. 369-375
• p-ISSN: 2584-4334
• URN:NBN: urn:nbn:hr:115:369058
• Publication: 2021
• Conference: Title: 3rd International Conference on Materials: corrosion, heat treatment, materials testing and tribology (MTECH 2021); Location: Šibenik, Croatia; Start date: 2021-10-06; End date: 2021-10-09; Assembly type: Lecture
• Type of resource: Text
• Publisher: Zagreb: Hrvatsko društvo za zaštitu materijala (HDZaMa)
• Publishing place: Zagreb
• Access conditions: Open access
• Created on: 2024-05-02 07:49:02