Revealing the corrosion product films of ion-implanted biodegradable Zn–Cu alloys
Revealing the corrosion product films of ion-implanted biodegradable Zn–Cu alloys
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DOI：
10.1016/j.corsci.2022.110814
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发表时间：
2022-11
影响因子：
8.3
通讯作者：
Shiyu Huang;W. Wu;Gang Han;Lelin Wang;Xinyuan Mei;Lijie Qiao;Yu Yan
中科院分区：
文献类型：
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作者：
Shiyu Huang;W. Wu;Gang Han;Lelin Wang;Xinyuan Mei;Lijie Qiao;Yu Yan
采用Cu离子注入法对一种可生物降解的Zn-Cu合金进行改性，使其达到分级降解的目的。在表面获得了具有微米厚0001 2 1 μ 1 μ 0织构层结构的纳米厚氧化物层。采用聚焦离子束和透射电镜对腐蚀产物进行了研究。早期腐蚀产物主要由ZnO、CuO和Ca/P相组成，ZnO的生长呈现{0001}晶面择优取向。后期腐蚀产物膜以非晶Ca/P层为主，还发现了结晶度较好的产物，如ZnO、CuO和Zn 3（PO 4）2。
In this work, a type of biodegradable Zn–Cu alloy was modified by Cu ion implantation method to achieve graduated degradation rates. A nanometer-thick oxide layer with micron-thick 0001 2 1 ̅ 1 ̅ 0 textured layer structure was obtained on the surface. Focused ion beam and transmission electron microscopy were conducted to investigate the corrosion products. These early corrosion products mainly consisted of ZnO, CuO, and Ca/P phases, and the growth of ZnO showed a preferred orientation of {0001} planes. The amorphous Ca/P layer dominated the later corrosion product films, and products with good crystallinity, such as ZnO, CuO, and Zn 3 (PO 4) 2, were also found.