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High-frequency electropulse deposition of microcrystallized MGH754 ODS alloy coatings

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Abstract

A simple but more efficient technique—high-frequency electropulse deposition—was developed to produce microcrystallized MGH754 ODS alloy coatings on the 1Cr18Ni9Ti stainless steel substrate. The coating has a very fine grain size of 30–300 nm and metallurgical bonding with the substrate. Isothermal oxidation in air at 1 000°C for 100 h shows that micro-crystallisation and dispersed oxide particles promote the selective oxidation of Cr greatly to form a protective and continuous Cr2O3 scale and also improve the scale spallation resistance dramatically, thus increasing the oxidation resistance of 1Cr18Ni9Ti.

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Authors and Affiliations

  1. Corrosion, Erosion and Surface Technology Laboratory, Corrosion and Protection Center, Beijing University of Science and Technology, 100083, Beijing, China

    Pang Hongmei, Qi Huibin, He Yedong, Wang Deren & Li Zhengwei

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  1. Pang Hongmei
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  2. Qi Huibin
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  3. He Yedong
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  4. Wang Deren
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  5. Li Zhengwei
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Correspondence to Qi Huibin.

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Pang, H., Qi, H., He, Y. et al. High-frequency electropulse deposition of microcrystallized MGH754 ODS alloy coatings. Sc. China Ser. B-Chem. 43, 540–546 (2000). https://doi.org/10.1007/BF02969500

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  • DOI: https://doi.org/10.1007/BF02969500

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