On the corrosion behaviour of newly developed biodegradable Mg-based metal matrix composites produced by in situ reaction
On the corrosion behaviour of newly developed biodegradable Mg-based metal matrix composites produced by in situ reaction
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DOI：
10.1016/j.corsci.2011.09.027
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发表时间：
2012-01-01
影响因子：
8.3
通讯作者：
Li, Nian-Feng
中科院分区：
文献类型：
--
作者：
Lei, Ting;Tang, Wei;Li, Nian-Feng
以纯镁和20%氧化锌为原料，采用原位反应法制备了MgO陶瓷和Mg-Zn金属间化合物增强的可生物降解镁基金属基复合材料（Mg-MMC）。通过电化学测量和汉克斯溶液浸泡试验评估Mg-MMC的腐蚀行为。结果表明：新制备的Mg-MMC由α - mg基体和均匀分布的MgO陶瓷以及基体中作为增强剂的Mg-Zn金属间化合物组成；Mg-MMC具有与纯镁相当的腐蚀行为，并且在机械性能和耐腐蚀性方面表现出增强的改善。(C) 2011 Elsevier Ltd.版权所有。
Biodegradable Mg-based metal matrix composite (Mg-MMC) reinforced by MgO ceramics and Mg-Zn intermetallics were prepared by in situ reaction using a powder mixture of pure magnesium and 20 wt% ZnO as raw materials. The corrosion behaviour of Mg-MMC was evaluated by electrochemical measurements and immersion tests in Hanks' solution. Results show that the newly developed Mg-MMC is composed of alpha-Mg matrix and uniformly distributed MgO ceramic and Mg-Zn intermetallics in matrix as reinforcements. The Mg-MMC possesses a corrosion behaviour comparable to pure magnesium and exhibits enhanced improvement in mechanical properties and corrosion resistance. (C) 2011 Elsevier Ltd. All rights reserved.