Influence of MWCNT dispersion on corrosion behaviour of their Mg composites
Influence of MWCNT dispersion on corrosion behaviour of their Mg composites
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DOI：
10.1002/maco.201006023
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发表时间：
2012-05-01
影响因子：
1.8
通讯作者：
Virtanen, S.
中科院分区：
文献类型：
--
作者：
Li, Q.;Turhan, M. C.;Virtanen, S.
碳纳米管已被证明是改善镁合金力学性能的良好增强体。本文研究了碳纳米管的分散对其镁复合材料腐蚀行为的影响。实验表明，在镁合金中加入碳纳米管后，由于电偶合作用，腐蚀速率显著增加。此外，均匀的碳纳米管分散会导致耐腐蚀性降低。表面处理对1wt%和5wt%碳纳米管复合材料的腐蚀性能也是至关重要的。
Carbon nanotubes (CNTs) have been demonstrated as good reinforcements to improve mechanical properties of magnesium alloys. This study reports on the influence of CNT dispersion on corrosion behaviour of their Mg composites. Experiments revealed that the corrosion rate is drastically increased by adding CNTs to the magnesium alloy due to galvanic coupling. Moreover, a homogeneous CNT dispersion leads to reduced corrosion resistivity. Surface pre-treatment is also found to be critical for the corrosion performance for both 1 and 5?wt% CNT composites.