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Effects of pulsed magnetic field on microstructure, mechanical properties and bio-corrosion behavior of Mg-7Zn alloy
Ist Teil von
Materials letters, 2017-04, Vol.193, p.224-227
Ort / Verlag
Amsterdam: Elsevier B.V
Erscheinungsjahr
2017
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
•Solidification microstructure of Mg-7Zn alloy treated by PMF was refined.•Volume fraction of MgZn phase was reduced by PMF treatment.•Mechanical properties of Mg-7Zn alloy treated by PMF were enhanced.•Corrosion resistance of Mg-7Zn alloy treated by PMF were improved.
Effects of pulsed magnetic field (PMF) on microstructure, mechanical properties and bio-corrosion behavior of Mg-7Zn alloy were investigated. Results show that the solidification microstructure of Mg-7Zn alloy was further refined with increasing discharging voltage. The second phase was changed from discontinuous reticular to island-like and particle-like morphology. Moreover, the volume fraction of second phase in the alloy treated by PMF was reduced. With PMF treatment, the mechanical properties of Mg-7Zn alloy were also enhanced. The PMF treatment was beneficial to the bio-corrosion resistance improvement of Mg-7Zn alloy. The corrosion rate of Mg-7Zn alloy was gradually decreased with increasing discharging voltage.