Influence of Defects on Deformation Behavior of High-Pressure Die-Casting Magnesium Alloys

• Autorzy: Braszczyńska-Malik Katarzyna

Identyfikatory

DOI

10.24425/afe.2023.144289

• Języki publikacji: EN

Abstrakty

EN

The results of investigations of defects in AME-series magnesium alloys produced by the high-pressure die-casting method are presented. The analyzed magnesium alloys contain about 5 wt% aluminum and 1-5 wt% rare earth elements introduced in the form of mischmetal. The casts were fabricated using a regular type cold-chamber high-pressure die-casting machine with a 3.2 MN locking force. The same surfaces of the casts were analyzed before and after the three-point bending test in order to determine the influence of the gas and shrinkage porosity on the deformation behavior of the alloys. The obtained results revealed that the most dangerous for the cast elements is the shrinkage porosity, especially stretched in the direction perpendicular to the that of the tensile stress action. Additionally, the influence (Mg) solid solution and its interaction on the cracking process was described [alpha]  of deformation twins arise in the dendrites of the primary.

Słowa kluczowe

EN

magnesium alloy; high-pressure die casting; gas porosity; shrinkage porosity; microstructure; deformations

PL

stop magnezu; odlewanie wysokociśnieniowe; porowatość gazowa; porowatość skurczowa; mikrostruktura; deformacje

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2023
• Tom: Vol. 23, iss. 2
• Strony: 10--14
• Opis fizyczny: Bibliogr. 15 poz., il.

Twórcy

autor

Braszczyńska-Malik Katarzyna

• Czestochowa University of Technology, Faculty of Production Engineering and Materials Technology, Czestochowa, Poland

• https://orcid.org/0000-0002-6449-5693

Bibliografia

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• [10] Braszczyńska-Malik, K. & Malik, M.A. (2020). Impact strength of AE-type alloys high pressure die castings. Archives of Foundry Engineering. 20(3), 5-8. DOI:10.24425/afe.2020.133321.
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• [14] Braszczyńska-Malik, K.N. & Grzybowska, A. (2016). Influence of phase composition on microstructure and properties of Mg-5Al-0.4Mn-xRE (x = 0, 3 and 5 wt.%) alloys, Materials Characterization. 115, 14-22. https://doi.org/10.1016/j.matchar.2016.03.014.
• [15] Braszczyńska-Malik, K.N. (2014). Some mechanical properties of experimental Mg-Al-Mn-RE alloy. Archives of Foundry Engineering. 14(1), 13-16. DOI: 10.2478/afe-2014-0003.

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)