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Effect of copper ion implantation on corrosion morphology and corrosion behavior of LaFe_(11.6)Si_(1.4) alloy 被引量:2

Effect of copper ion implantation on corrosion morphology and corrosion behavior of LaFe_(11.6)Si_(1.4) alloy
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摘要 The morphology analysis and electrochemical method were used to study the corrosion behavior of LaFe11.6Si1.4 alloy of copper ion implantation. X-ray photoelectron spectroscopy (XPS) and atomic emission spectroscopy (AES) research results showed that a 15 nm-thick oxide film was formed on the surface of sample, and the copper content reached the highest value at 60 nm with a normal distribution. Immersion experiments indicated that the corrosion happened in the copper-poor zone firstly and a galvanic connection was formed among different zones on the surface due to the inhomogeneous distribution of copper. Electrochemical experiment results showed that the corrosion was serious when the ion acceleration voltage increased, and the high acceleration could reduce the thermodynamic performance of corrosion of LaFe11.6Si1.4 alloy. The morphology analysis and electrochemical method were used to study the corrosion behavior of LaFe11.6Si1.4 alloy of copper ion implantation. X-ray photoelectron spectroscopy (XPS) and atomic emission spectroscopy (AES) research results showed that a 15 nm-thick oxide film was formed on the surface of sample, and the copper content reached the highest value at 60 nm with a normal distribution. Immersion experiments indicated that the corrosion happened in the copper-poor zone firstly and a galvanic connection was formed among different zones on the surface due to the inhomogeneous distribution of copper. Electrochemical experiment results showed that the corrosion was serious when the ion acceleration voltage increased, and the high acceleration could reduce the thermodynamic performance of corrosion of LaFe11.6Si1.4 alloy.
出处 《Journal of Rare Earths》 SCIE EI CAS CSCD 2012年第3期269-273,共5页 稀土学报(英文版)
基金 Project supported by the Key Project of National Natural Science Foundation of China (50731007) the National High Technology Research and Development Program of China (2007AA03Z440)
关键词 LaFe11.6Si1.4 alloy ion implantation corrosion morphology rare earths LaFe11.6Si1.4 alloy ion implantation corrosion morphology rare earths
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