Phase Composition and Properties of Magnesium-Ceramic Composites after High Pressure Torsion

Abstract:

The structure and properties of a composite consisting of Mg–Y–Nd–Zr alloy (WE43) and various oxides are studied. The particles of the WE43 powder were coated by the nanocrystalline oxide layer by means of a wet chemical deposition process. After that the powder is compressed into solid samples and deformed using high pressure torsion at room temperature. A second phase is present both in pure WE43 alloy and in the one with deposited oxides. We observed that the modification of the alloy by the oxide layer deposition and deformation by high pressure torsion changes the phase composition and properties of the samples.

• Periodical: Defect and Diffusion Forum (Volume 385)
• Pages: 218-222
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.385.218
• Online since: July 2018
• Authors: Petr B. Straumal*, Natalia Martynenko, Daria Amelina, Aleksey Nekrasov, Sergey Dobatkin
• Keywords: High Pressure Torsion, Magnesium Alloy, Nanocrystalline Oxides, Severe Plastic Deformation

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