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Article

Microstructure, Mechanical, Corrosion, and Ignition Properties of WE43 Alloy Prepared by Different Processes

1
University of Chemistry and Technology, Faculty of Chemical Technology, Department of Metals and Corrosion Engineering, Prague, Technická 5, 166 28 Prague 6, Czech Republic
2
Institute of Physics, Czech Academy of Science, Prague, Na Slovance 1999/2, 182 21 Prague 8, Czech Republic
3
Institute of Materials and Machine Mechanics SAS, Slovak Academy of Sciences, Dúbravská Cesta 9, 845 13 Bratislava, Slovakia
*
Author to whom correspondence should be addressed.
Academic Editor: Alan Luo
Metals 2021, 11(5), 728; https://doi.org/10.3390/met11050728
Received: 30 March 2021 / Revised: 12 April 2021 / Accepted: 27 April 2021 / Published: 28 April 2021
(This article belongs to the Special Issue Processing and Treatment of Hexagonal Metallic Materials)
This paper deals with the effect of microstructure condition on ignition temperature, mechanical and corrosion properties of commercial WE43 alloy prepared by various processing techniques including conventional casting, extrusion, and powder metallurgy methods such as spark plasma sintering. For different processing technique, differences in microstructures were observed, including different grain sizes, intermetallic phases, amount of alloying elements in the solid solutions, or specific structural elements. Mechanical and corrosion properties were improved especially by grain refinement. Precipitation from oversaturated solid solutions led to further improvement of mechanical properties, while corrosion resistance was just slightly decreased due to the fine and homogeneously distributed precipitates of Mg41Nd5. The obtained results indicate huge differences in ignition resistance based on the metallurgical state of the microstructure. An improved ignition resistance was obtained at the condition with a higher concentration of proper alloying elements (Y, Nd, Gd, Dy) in the solid solution and absence of eutectic phases in the microstructure. Thermally stable intermetallic phases had a minor effect on resulting ignition temperature. View Full-Text
Keywords: WE43 alloy; gravity casting c; extrusion; SPS; microstructure; mechanical properties; ignition temperature WE43 alloy; gravity casting c; extrusion; SPS; microstructure; mechanical properties; ignition temperature
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MDPI and ACS Style

Dvorský, D.; Kubásek, J.; Hosová, K.; Čavojský, M.; Vojtěch, D. Microstructure, Mechanical, Corrosion, and Ignition Properties of WE43 Alloy Prepared by Different Processes. Metals 2021, 11, 728. https://doi.org/10.3390/met11050728

AMA Style

Dvorský D, Kubásek J, Hosová K, Čavojský M, Vojtěch D. Microstructure, Mechanical, Corrosion, and Ignition Properties of WE43 Alloy Prepared by Different Processes. Metals. 2021; 11(5):728. https://doi.org/10.3390/met11050728

Chicago/Turabian Style

Dvorský, Drahomír, Jiří Kubásek, Klára Hosová, Miroslav Čavojský, and Dalibor Vojtěch. 2021. "Microstructure, Mechanical, Corrosion, and Ignition Properties of WE43 Alloy Prepared by Different Processes" Metals 11, no. 5: 728. https://doi.org/10.3390/met11050728

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