Characterization of Ca50Mg20Zn12Cu18 Alloy

The Ca50Mg20Zn12Cu18 was assessed with different methods in order to characterize its basic characteristics, and to determine whether the amorphous alloy of such composition would be applicable as an implant material. The XRD analysis was conducted to conclude the structure of the initial material....

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Bibliographic Details
Published in:Archives of foundry engineering 2019-01, Vol.19 (1), p.75
Main Authors: Hrapkowicz, B, Lesz, S T
Format: Article
Language:English
Subjects:
Amorphous alloys
Amorphous materials
Corrosion resistance
Corrosion resistant alloys
Crystal structure
Crystallinity
Hydroxides
Ingot casting
Intermetallic phases
Magnesium
Metallic glasses
Morphology
Slaked lime
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Summary:The Ca50Mg20Zn12Cu18 was assessed with different methods in order to characterize its basic characteristics, and to determine whether the amorphous alloy of such composition would be applicable as an implant material. The XRD analysis was conducted to conclude the structure of the initial material. The Ca50Mg20Zn12Cu18 ingot sample demonstrates crystalline structure containing two main intermetallic phases, however as-cast plates show features of an amorphous material, revealing the characteristic amorphous halo on the x-ray patterns. It was confirmed by the scanning electron microscopy method and fracture images revealing chevron pattern morphology with shell type fracture. Corrosion resistance, was studied using the potentiostatic analysis. The amorphous samples show higher resistance than the crystalline one. Post corrosion surface of the Ca50Mg20Zn12Cu18 alloy exhibits high concentration of magnesium and calcium hydroxides, forming the globular structures in large aggregates of spherical units.
ISSN:1897-3310
2299-2944
DOI:10.24425/afe.2018.125195