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Open AccessFeature PaperArticle

Magnesium Reinforced with Inconel 718 Particles Prepared Ex Situ—Microstructure and Properties

1
Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, 121 16 Praha 2, Czech Republic
2
Mechanical Engineering, National University of Singapore, Singapore 119077, Singapore
3
ComtesFHT, Průmyslová 996, 334 41 Dobřany, Czech Republic
*
Author to whom correspondence should be addressed.
Materials 2020, 13(3), 798; https://doi.org/10.3390/ma13030798
Received: 1 December 2019 / Revised: 29 January 2020 / Accepted: 5 February 2020 / Published: 10 February 2020
(This article belongs to the Special Issue Mechanical and Physical Properties of Metallic Composites)
Magnesium samples reinforced with 0.7, 1.4, and 2.4 vol.% of Inconel 718 particles were prepared using a disintegrated melt deposition technique followed by hot extrusion. Mechanical properties, thermal expansion, and damping were studied with the aim of revealing the particle influence on the microstructure, texture, tensile and compressive behavior, thermal expansion coefficient, and internal friction. The flow stresses are significantly influenced by the test temperature and the vol.% of particles. A substantial asymmetry in the tensile and compressive properties was observed at lower temperatures. This asymmetry is caused by different deformation mechanisms operating in tension and compression. The fiber texture of extruded composite samples, refined grain sizes, and the increased dislocation density improved the mechanical properties. On the other hand, a decrease in the thermal expansion coefficient and internal friction was observed. View Full-Text
Keywords: magnesium; composite; texture; mechanical properties; twinning; thermal expansion; internal friction magnesium; composite; texture; mechanical properties; twinning; thermal expansion; internal friction
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MDPI and ACS Style

Trojanová, Z.; Drozd, Z.; Lukáč, P.; Minárik, P.; Németh, G.; Seetharaman, S.; Džugan, J.; Gupta, M. Magnesium Reinforced with Inconel 718 Particles Prepared Ex Situ—Microstructure and Properties. Materials 2020, 13, 798.

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