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Effects of Sr on the glass-forming ability and corrosion behaviour of Mg–Zn–Ca–Cu bulk metallic glass
Corrosion Engineering, Science and Technology ( IF 1.8 ) Pub Date : 2022-08-11 , DOI: 10.1080/1478422x.2022.2111038
Saifei Xu 1 , Yong Hu 1 , Jinsong Tian 1 , Kaijiang Xue 1
Affiliation  

ABSTRACT

Mg-based bulk metallic glass (BMG) is a biodegradable metal with significant potential advantages as an implant material. To investigate the effect of Sr addition on the glass-forming ability (GFA) and its effect on the mechanical properties and corrosion behaviours of Mg–Zn–Ca–Cu BMG, a series of Mg66-xZn29.5Ca4Cu0.5Srx (x = 0, 0.3, 0.6, and 0.9 at.-%) were synthesised and investigated in this study. Microstructural characterisation, GFA and corrosion resistance measurements were carried out by XRD, DSC, SEM, immersion and electrochemical corrosion tests. The results showed that the addition of Sr improved the GFA and mechanical properties and enhanced and adjustable corrosion performance. In addition, the mechanical and corrosion property analyses showed that the Mg65.7Zn29.5Ca4Cu0.5Sr0.3 alloy exhibited the best mechanical properties and bio-corrosion resistance.



中文翻译:

Sr对Mg-Zn-Ca-Cu块状金属玻璃的成玻璃能力和腐蚀行为的影响

摘要

镁基块状金属玻璃(BMG)是一种可生物降解的金属,作为植入材料具有显着的潜在优势。为了研究 Sr 对 Mg-Zn-Ca-Cu BMG 玻璃形成能力 (GFA) 的影响及其对机械性能和腐蚀行为的影响,一系列 Mg 66- x Zn 29.5 Ca 4 Cu 0.5 Sr x ( x = 0、0.3、0.6 和 0.9 at.-%) 在本研究中合成和研究。通过XRD、DSC、SEM、浸没和电化学腐蚀测试进行微观结构表征、GFA和耐腐蚀性测量。结果表明,Sr的加入提高了GFA和力学性能,增强了可调节的腐蚀性能。此外,力学和腐蚀性能分析表明,Mg 65.7 Zn 29.5 Ca 4 Cu 0.5 Sr 0.3合金表现出最好的力学性能和耐生物腐蚀性能。

更新日期:2022-08-11
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