prikaz prve stranice dokumenta Plastic instabilities during processing of AlMg alloy
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Scientific paper - Preliminary note / Short communication
Plastic instabilities during processing of AlMg alloy
In: 663rd IFC Portoroz 2023: conference proceedings. Ljubljana: Slovenian Foundrymen Society, 2023. urn:nbn:hr:115:649800
Mrkobrada, Lorena; Jandrlić, Ivan; Kozina, Franjo; Brlić, Tin

Institutional repository: Repository of Faculty of Metallurgy University of Zagreb

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Mrkobrada, L., Jandrlić, I., Kozina, F. & Brlić, T. (2023). Plastic instabilities during processing of AlMg alloy. 663rd IFC Portoroz 2023: conference proceedings. Ljubljana: Slovenian Foundrymen Society. Retrieved from https://urn.nsk.hr/urn:nbn:hr:115:649800

Mrkobrada, Lorena, et al. "Plastic instabilities during processing of AlMg alloy." 663rd IFC Portoroz 2023: conference proceedings, Ljubljana: Slovenian Foundrymen Society, 2023. https://urn.nsk.hr/urn:nbn:hr:115:649800

Mrkobrada, Lorena, Ivan Jandrlić, Franjo Kozina and Tin Brlić. "Plastic instabilities during processing of AlMg alloy." In 663rd IFC Portoroz 2023: conference proceedings. Ljubljana: Slovenian Foundrymen Society, 2023. Accessed 2024 June 28. https://urn.nsk.hr/urn:nbn:hr:115:649800

Mrkobrada, L., et al. (2023) 'Plastic instabilities during processing of AlMg alloy', 663rd IFC Portoroz 2023: conference proceedings, Ljubljana: Slovenian Foundrymen Society. Available at: https://urn.nsk.hr/urn:nbn:hr:115:649800 (Accessed 28 June 2024)

Mrkobrada L, Jandrlić I, Kozina F, Brlić T. Plastic instabilities during processing of AlMg alloy. 663rd IFC Portoroz 2023: conference proceedings. Ljubljana: Slovenian Foundrymen Society; 2023. [cited 2024 June 28] Available at: https://urn.nsk.hr/urn:nbn:hr:115:649800

L. Mrkobrada, I. Jandrlić, F. Kozina and T. Brlić, "Plastic instabilities during processing of AlMg alloy", 663rd IFC Portoroz 2023: conference proceedings Ljubljana: Slovenian Foundrymen Society, 2023. [Online] Available at: https://urn.nsk.hr/urn:nbn:hr:115:649800 [Accessed: 28 June 2024]

Metadata
Title (english)Plastic instabilities during processing of AlMg alloy
AuthorLorena Mrkobrada
AuthorIvan Jandrlić
AuthorFranjo Kozina
AuthorTin Brlić
Author's institutionUniversity of Zagreb
Faculty of Metallurgy
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Metallurgy
Mechanical Metallurgy
Abstract (english)
During the plastic deformation of most metallic materials, the normal material flow takes place in part of the material, which we call deformation zone. There are some exceptions in certain alloys where process of plastic deformation is unstable and there is inhomogeneous plastic flow at certain parameters of plastic processing. Examples of such instabilities are the inhomogeneous plastic deformations such as Lűders bands and the Portevin-Le Chatelier effect, which appear in the form of deformation bands. Instabilities like these cause problems during metal processing into final products. The focus of this research was to determining the type of instability in received AlMg alloy. Visualization of material flow, displacement and deformation measurement during the static tensile test was performed using the DIC method. From results of tensile tests, repetitive serrations on the stress-strain curve during plastic deformation were observed. DIC analysis showed inhomogeneous deformation during the test, which lead to reasonable assumption that the observed instability was Portevin-Le Chatelier effect. To investigate the mechanisms of deformation, microstructures were recorded on samples before, during and after propagation by PLC band. Structural analysis showed that the deformation takes place through the movement of dislocations, which is indicated by their increased density at the PLC front and behind front after it passes.
Keywords (english)
Languageenglish
Publication typeScientific paper - Preliminary note / Short communication
Publication statusSubmitted
Peer reviewPeer review - international
Publication versionPublished version
Publication title663rd IFC Portoroz 2023: conference proceedings
ISBN978-961-94793-8-4
URN:NBNurn:nbn:hr:115:649800
Publication2023-09
ConferenceTitle: 63rd International Foundrymen Conference PORTOROZ 2023
Location: Portorož, Slovenia
Organizer: Slovenian Foundrymen Society
Start date: 2023-09-13
End date: 2023-09-15
Assembly type: Lecture
Type of resourceText
PublisherLjubljana: Slovenian Foundrymen Society
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-04-24 11:41:38