Effect of Inoculant Emgesal® Flux 5 on the Microstructure of Magnesium Alloy AZ91

• Autorzy: Rapiejko C. , Mikusek D. , Andrzejczak A. , Pacyniak T.

Identyfikatory

DOI

10.24425/afe.2019.127109

• Języki publikacji: EN

Abstrakty

EN

This work presents the results of the research of the effect of the inoculant Emgesal Flux 5 on the microstructure of the magnesium alloy AZ91. The concentration of the inoculant was increased in samples in the range from 0.1% to 0.6%. The thermal processes were examined with the use of Derivative and Thermal Analysis (DTA). During the examination, the DTA samplers were preheated up to 180 °C. A particular attention was paid to finding the optimum amount of inoculant, which would cause fragmentation of the microstructure. The concentration of each element was verified by means of a spark spectrometer. In addition, the microstructures of the samples were examined with the use of an optical microscope, and an image analysis with a statistical analysis using the NIS-Elements program were carried out. Those analyses aimed at examining the differences between the grain diameters of phase αMg and eutectic αMg+γ(Mg17Al12) in the prepared samples as well as the average size of each type of grain by way of measuring their perimeters. This paper is an introduction to a further research of grain refinement in magnesium alloys, especially AZ91. Another purpose of this research is to achieve better micro-structure fragmentation of magnesium alloys without the related changes of the chemical composition, which should improve the mechanical properties.

Słowa kluczowe

EN

metallography; solidification process; magnesium alloys; Emgesal® Flux 5; DTA process

PL

metalografia; proces krzepnięcia; stopy magnezu; Emgesal® Flux 5; testy DTA

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2019
• Tom: iss. 2
• Strony: 15--20
• Opis fizyczny: Bibliogr. 19 poz., rys., tab., wykr.

Twórcy

autor

Rapiejko C.

• Lodz Univeristy of Technology, Department of Materials Engineering and Production Systems, Łódź, Poland

autor

Mikusek D.

• Lodz Univeristy of Technology, Department of Materials Engineering and Production Systems, Łódź, Poland

autor

Andrzejczak A.

• Lodz Univeristy of Technology, Department of Materials Engineering and Production Systems, Łódź, Poland

autor

Pacyniak T.

• Lodz Univeristy of Technology, Department of Materials Engineering and Production Systems, Łódź, Poland

Bibliografia

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• [9] Zhang, Y. et al. (2017) The influences of Al content on the microstructure and mechanical properties of as-cast Mg-6Zn magnesium alloys. Materials Science & Engineering A. A686, 93-101. DOI: 10.1016/j.msea.2016.12.122.
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• [13] Zhang, W., Xiao, W., Wang, F. & Ma Ch. (2016). Development of heat resistant Mg-Zn-Al-based magnesium alloys by addition of La and Ca: Microstructure and tensile properties. Journal of Alloys and Compounds. 684, 8-14. DOI:10.1016/j.jallcom.2016.05.137
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• [17] Data Emgesal Flux 5. Retrived January 13, 2019 from: https://www.lhoist.com/sites/lhoist/files/brochure_emgesalr_-_en.pdf.
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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).