合金元素钙对AM60镁合金上形成的阳极氧化膜的腐蚀行为和生物活性的影响
Effects of Alloying Element Ca on the Corrosion Behavior and Bioactivity of Anodic Films Formed on AM60 Mg Alloys.
作者信息
Anawati Anawati, Asoh Hidetaka, Ono Sachiko
机构信息
Research Institute for Science and Technology, Kogakuin University, 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan.
Department of Physics, Faculty of Mathematics and Natural Sciences, University of Indonesia, Depok 16424, Indonesia.
出版信息
Materials (Basel). 2016 Dec 26;10(1):11. doi: 10.3390/ma10010011.
Effects of alloying element Ca on the corrosion behavior and bioactivity of films formed by plasma electrolytic oxidation (PEO) on AM60 alloys were investigated. The corrosion behavior was studied by conducting electrochemical tests in 0.9% NaCl solution while the bioactivity was evaluated by soaking the specimens in simulated body fluid (SBF). Under identical anodization conditions, the PEO film thicknesses increased with increasing Ca content in the alloys, which enhanced the corrosion resistance in NaCl solution. Thicker apatite layers grew on the PEO films of Ca-containing alloys because Ca was incorporated into the PEO film and because Ca was present in the alloys. Improvement of corrosion resistance and bioactivity of the PEO-coated AM60 by alloying with Ca may be beneficial for biodegradable implant applications.
研究了合金元素钙对AM60合金上通过等离子体电解氧化（PEO）形成的薄膜的腐蚀行为和生物活性的影响。通过在0.9%氯化钠溶液中进行电化学测试来研究腐蚀行为，而通过将试样浸泡在模拟体液（SBF）中来评估生物活性。在相同的阳极氧化条件下，PEO膜厚度随着合金中钙含量的增加而增加，这增强了在氯化钠溶液中的耐腐蚀性。含钙合金的PEO膜上生长出更厚的磷灰石层，这是因为钙被掺入到PEO膜中且合金中存在钙。通过与钙合金化来提高PEO涂层AM60的耐腐蚀性和生物活性可能有利于可生物降解植入物的应用。
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