Effect of V content on corrosion behavior of high-energy ball milled AA5083
Effect of V content on corrosion behavior of high-energy ball milled AA5083
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DOI：
10.1016/j.corsci.2021.109465
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发表时间：
2021-04-14
影响因子：
8.3
通讯作者：
Gupta, R. K.
中科院分区：
文献类型：
--
作者：
Esteves, L.;Christudasjustus, J.;Gupta, R. K.
添加了钒（V）的AA5083合金通过高能球磨制成粉末形式，并采用放电等离子烧结和冷压固结。X射线衍射和X射线能谱分析表明，形成了过饱和固溶体，且晶粒细化至100纳米以下。通过电化学阻抗谱、循环动电位极化以及浸泡腐蚀试验并结合表面分析，对其腐蚀行为进行了研究。利用X射线光电子能谱获得了钝化膜的成分。由于添加了钒以及经过高能球磨，AA5083合金的耐腐蚀性得到显著提升。
AA5083 alloys with V additions were produced in the powder form by high-energy ball milling and consolidation by spark plasma sintering and cold compaction. X-ray diffraction and energy dispersive X-ray spectroscopy analysis indicated the formation of supersaturated solid solution and grain refinement below 100 nm. Corrosion behavior was investigated using electrochemical impedance spectroscopy, cyclic potentiodynamic polarization, and immersion corrosion tests followed by surface analysis. The composition of the passive film was obtained via X-ray photoelectron spectroscopy. The corrosion resistance of the AA5083 was significantly improved due to the addition of V and high-energy ball milling.