【摘 要】
：
Ternary Zn-0.5Al-0.5Mg and quaternary Zn-0.5Al-0.5Mg-xBi (x =0.1,0.3 and 0.5) alloys were studied to evaluate the thermal and structural characteristics,mechanical properties,cytotoxicity and in vitro degradation behavior.Thermal analysis and microstructu
【机 构】
：
Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic A
论文部分内容阅读
Ternary Zn-0.5Al-0.5Mg and quaternary Zn-0.5Al-0.5Mg-xBi (x =0.1,0.3 and 0.5) alloys were studied to evaluate the thermal and structural characteristics,mechanical properties,cytotoxicity and in vitro degradation behavior.Thermal analysis and microstructural observations showed that Zn-0.5Al-0.5Mg is composed of FCC-Al + HCP-Zn + Mg2(Zn,Al)11 while a new phase α-Mg3Bi2 appeared after the addition of Bi to the Zn-0.5Al-0.5Mg ternary alloy.The results revealed that the quaternary Zn-Al-Mg-Bi alloys have higher tensile strength,elongation and hardness but slightly lower corrosion resistance than those of the ternary Zn-Al-Mg alloy.Based on the MTT assay,the Zn-Al-Mg and Zn-Al-Mg-Bi alloys were found to be biocompatible,and thus,they can be considered for further investigation in an in vivo environment.
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