【摘要】 通过体外浸泡实验及电化学测试的方法,研究了Zn-xLi （x=0,0.5%,0.8%）在人工尿液（AU）中长达28 d的腐蚀行为。结果表明,尽管浸泡过程中,样品依然存在结壳现象,但对比前人研究过的几种金属,Zn/Zn-xLi结壳现象有所缓解,这在输尿管植入应用中是十分可喜的现象。样品在人工尿液中的腐蚀产物为CaZn₂（PO₄）₂·2H₂O,电化学测定浸泡28d后样品的腐蚀速率为0.21～0.34 mm·a^-1。更多还原

【Abstract】 Zn-based materials have been adopted as candidate material of biodegradable implants and some researches give the evidence that Zn-based materials are promising as degradable scaffold.This paper will reveal the degradation behavior of Zn-x Li（x=0, 0.5%, 0.8%） alloys in artificial urine（AU）.The corrosion behavior of pure Zn and Zn-x Li alloys in AU up to 28 d were investigated by means of immersion test and electrochemical approach. The results indicate that even the Zn and Zn-x Li alloys display encrustation in artificial urine, however, the encrustation degree in the present study was alleviated compared with other alloys studied previously, which seems a very encouraging phenomenon in the application for ureteral stent implantation. The corrosion products of the Zn and Zn-xLi alloys in AU was CaZn₂（PO₄）₂·2H₂O and the corresponding corrosion rate was in the range of 0.21 to 0.34 mm·a^-1 for the Zn and Zn-xLi alloys after immersion for 28 d.更多还原