The Effect of Extrusion in the Complex Strain State on the Microstructure and Mechanical Properties of MgAlZn Magnesium Alloys

• Autorzy: Bednarczyk I. , Kuc D. , Tomaszewska A. , Tkocz M.

Identyfikatory

DOI

10.24425/amm.2020.133228

• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of tests concerning the effect of the extrusion process in the complex strain state on the microstructure and properties of one of magnesium alloy with aluminium, zinc and manganese, designated AZ61. Due to its specific gravity, it is increasingly being used in the automotive and aerospace industries to reduce the weight of structural elements. As a result of plastic deformation processes, rods with a diameter of 8, 6 and 4 mm were obtained from AZ61 magnesium alloy. The microstructure analysis was performed using light and electron microscopy (STEM) techniques in the initial state and afterplastic deformation. Microstructure studies were supplemented with a quantitative analysis using the Metilo program. A number of stereological parameters were determined: average diameter of grain, shape factor. A static tensile test was carried out at 250ºC and 300ºC, at deformation rates of 0.01, 0.001 and 0.0001 m·s^-1. Better plastic properties after deformation using KoBo methodwere obtained than with conventional extrusion.

Słowa kluczowe

EN

magnesium alloys; KoBo method; microstructure; electron microscope; shape factor

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2020
• Tom: Vol. 65, iss. 3
• Strony: 1121--1128
• Opis fizyczny: Bibliogr. 15 poz., fot., rys., tab.

Twórcy

autor

Bednarczyk I.

• Silesian University of Technology, Faculty of Material Science, 8 Krasińskiego Str., 40-019 Katowice, Poland

autor

Kuc D.

• Silesian University of Technology, Faculty of Material Science, 8 Krasińskiego Str., 40-019 Katowice, Poland

autor

Tomaszewska A.

• Silesian University of Technology, Faculty of Material Science, 8 Krasińskiego Str., 40-019 Katowice, Poland

autor

Tkocz M.

• Silesian University of Technology, Faculty of Material Science, 8 Krasińskiego Str., 40-019 Katowice, Poland

Bibliografia

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Uwagi

EN

1. This work was supported by Polish Ministry for Science and Higher Education under internal grant BK-205/RM0/2019 for Institute of Materials Science, Silesian University of Technology, Poland.

PL

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).