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Understanding?the Effect of Tungsten on Corrosion Behavior of AlCuCrFeMnW x High-Entropy Alloys in 3.5 wt.% NaCl Solution

机译:理解?钨对AlcucRFemnw <下标> <重点型=“斜体”> x 高熵合金的效果。%NaCl溶液

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摘要

The electrochemical study of AlCuCrFeMnW~( x )( x ?=?0, 0.05, 0.1, 0.5, 1?mol) high-entropy alloys (HEA) is performed in 3.5?wt.% NaCl solution at room temperature (25?°C). The potentiodynamic polarization curve of the AlCuCrFeMnW~( x )( x ?=?0, 0.05, 0.1, 0.5, 1?mol) alloys obtained in 3.5 wt.% NaCl solution shows that the corrosion resistance of the tungsten (W)-free HEA is lower than the alloys containing W. It is observed that W forms solid WO~(3)layer in the outer region of the film in a 3.5?wt.% NaCl. The scanning electron microscopy and infrared spectroscopy confirmed the electrochemical results. The electrochemical impedance spectroscopy of these alloys had one capacitive loop, which represented the presence of electrical double layer.
机译:AlcucrFemnw〜(x)的电化学研究(x?=Δ0,0.05,0.5,1≤mol)高熵合金(Hea)在3.5·wt中进行。%NaCl溶液在室温下(25Ω·° C)。 AlcucrFemnw〜(x)的电位偏振曲线(x?=Δ0,0.1,0.1,0.1,0.1,0.1,0.5,1摩尔)合金,得到的合金,%NaCl溶液表明,钨(W)的耐腐蚀性 - 免版税 Hea低于含有W的合金。观察到在3.5℃下在薄膜的外部区域中形成固体WO〜(3)层。%NaCl。 扫描电子显微镜和红外光谱证实了电化学效果。 这些合金的电化学阻抗光谱具有一个电容回路,其表示电双层的存在。

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