High-Temperature Oxidation Behavior of Zirconium Modified Aluminum Magnesium Alloys for Current Carrying Fittings in Converter Stations

LI Dongqing; ZHENG Shuhui; ZHOU Lixian; XI Yongping; LIU Shengchun; GU Jian

doi:10.11973/fsyfh-201902004

Corrosion & Protection > 2019 > 40(2): 101-104. > DOI: 10.11973/fsyfh-201902004

LI Dongqing, ZHENG Shuhui, ZHOU Lixian, XI Yongping, LIU Shengchun, GU Jian. High-Temperature Oxidation Behavior of Zirconium Modified Aluminum Magnesium Alloys for Current Carrying Fittings in Converter Stations[J]. Corrosion & Protection, 2019, 40(2): 101-104. DOI: 10.11973/fsyfh-201902004

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High-Temperature Oxidation Behavior of Zirconium Modified Aluminum Magnesium Alloys for Current Carrying Fittings in Converter Stations

China Electric Power Pesearch Institute, Beijing 100192, China

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Received Date: September 07, 2017

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Abstract

The Al-Mg-Mn-Cr-Zr alloys with different content of Zr were prepared by the method of vacuum induction melting. The effect of Zr addition amount on the high-temperature oxidation behavior at 300℃ was investigated through electron scanning microscopy (SEM), energy dispersive spectroscopy (EDS) and high-temperature oxidation experiment. The results show that the addition of zirconium could significantly improve the high-temperature oxidation resistance of the alloy. With the increase of Zr addition amount, the oxidation reaction rate of the alloy decreased continuously, and the high-temperature oxidation resistance was gradually improved. The alloy had the optimal high-temperature oxidation resistance when the amount of Zr addition was 0.22% in the test range.
- current carrying fitting,
- aluminum magnesium alloy,
- high-temperature oxidation,
- reactive element,
- oxidation rate

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