Mechanical behaviour and bio-corrosion performance of Zn-Cu-Mn based alloys for biomedical applications
Year: 2025
Type: article
Abstract: The mechanical behaviour and bio-corrosion properties of Zn-1.2Cu-xMn (x = 0.2, 0.4, and 0.6 wt%) alloys was investigated in this study. The alloy compositions were produced via liquid metallurgical processing and characterized using scanning electron microscopy (SEM), and X-ray diffractometry (XRD). The mechanical properties were evaluated using hardness, tensile properties, fracture toughness measurement while corrosion studies in Hank's solution was used to access the bio-corrosion behaviour. The results show that the tensile test of the studied Zn alloys increased in ultimate strength from 79.52 to 112.65 MPa, fracture toughness from 6.99 to 7.71 MPam1/2 and hardness from 10.59 to 18.80 Hv, but with significant reduction in ductility from 5.21% to 3.63%. The improved mechanical properties were attributed to solid solution and second phase strengthening. The alloys presented appropriate in vitro degradation rates of 25–73 µm/year in Hank's solution. Based on the results demonstrated by the studied Zn-Cu-Mn alloys with suitable mechanical properties and ideal degradation behavior, it is projected as a promising candidate for cardiovascular stent applications.
Source: Manufacturing Review
Authors: Kenneth Kanayo Alaneme, Michael Adediran
Institutions: Federal University of Technology, University of Johannesburg
Language: English
Subfield: Biomaterials
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $791
Award: G4010557817
OpenAlex ID: W4408801107