Enhanced plasticity at cryogenic temperature in a magnesium alloy

Enhanced plasticity at cryogenic temperature in a magnesium alloy

The mechanical behaviours of magnesium alloy (WE43) at cryogenic temperatures are investigated. The significant improvement in both fracture strength (28%) and strain-to-failure (24%) at −196 °C is observed when compression direction is normal to the extrusion direction, as benchmarked against room-...

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Veröffentlicht in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2021-04, Vol.811, p.141001, Article 141001
Hauptverfasser: Zhang, Kai, Zheng, Jing-Hua, Hopper, Christopher, Sun, Chaoyang, Jiang, Jun
Format: Artikel
Sprache:eng
Schlagworte:
Compacting
Compressive strength
Cryogenic deformation
Cryogenic engineering
Cryogenic temperature
Electron backscattering diffraction (EBSD)
Fracture strength
Magnesium alloys
Magnesium base alloys
Materials Science
Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Nanoscience & Nanotechnology
Plasticity
Room temperature
Science & Technology
Science & Technology - Other Topics
Slip
Technology
Temperature
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Zusammenfassung:The mechanical behaviours of magnesium alloy (WE43) at cryogenic temperatures are investigated. The significant improvement in both fracture strength (28%) and strain-to-failure (24%) at −196 °C is observed when compression direction is normal to the extrusion direction, as benchmarked against room-temperature properties. This considerable improvement in strain-to-failure and strength at cryogenic temperature is attributed to unusual enhanced pyramidal slip.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2021.141001