Abstract
The microstructure evolution during high pressure torsion and its influence on the mechanical properties of AZ80 magnesium alloy is presented in this study. Significant grain refinement was observed after high pressure torsion, while the homogeneity of the grain structure increases with the number of revolutions. Grain size decreases to about 50 nm after 15 revolutions. The microhardness profiles measured at through-thickness and through-width directions show no significant variation at different positions of the sample. Moreover, the negligible effect of the revolution number on the microhardness value was observed.
Keywords
Materials science
Microstructure
Indentation hardness
Magnesium alloy
Torsion (gastropod)
Grain size
Alloy
Homogeneity (statistics)
Metallurgy
Magnesium
High pressure
Thermodynamics
Mathematics
Subject Areas
Magnesium Alloys: Properties and Applications
·Biomaterials ·Physical Sciences
Aluminum Alloys Composites Properties
·Mechanical Engineering ·Physical Sciences
Metal and Thin Film Mechanics
·Mechanics of Materials ·Physical Sciences
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