CORROSION INTERFACE MORPHOLOGY AND FRACTAL ANALYSIS OF AMORPHOUS ALLOYS IN AIR

J Chin Soc Corr Pro

1998, Vol. 18

Issue (4): 257-262 DOI:

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CORROSION INTERFACE MORPHOLOGY AND FRACTAL ANALYSIS OF AMORPHOUS ALLOYS IN AIR

LI Ying LIN Hai-cao CAO Chu-nan(State Key Laboratory for Corrosion and Protection; Institute of Corrosion and Protection of Metal; Chinese Academy of Sciences; Shenyang 110015)

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Abstract The morphology of FeNiSiB amorphous alloy before and after corrosion in the air has been studied by scanning tunneling microscopy. The morphology characteristics have been analyzed by the fractal method and the relationship between the structure and the corrosion behavior of the amorphous alloy has been discussed. The amorphous alloy used in the study has a unique structure. At first, several atoms form the grain about 2 nanometers in scale, and then, these grains pile up to form the bigger grains about 50 nanometres. These bigger grains mix together again to form the amorphous alloy. The fractal dimension of the amorphous alloy in micrometer and in nanometer scales is the same, and the fractal dimension is also the same before and after corrosion. General corrosion occurred on the amorphous alloy in air and the minor units participated in the corrosion are the grains about 2 nanometres in scale.

Key words: Atmospheric corrosion Amorphous alloys STM Fractal dimension

Received: 25 August 1998

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LI Ying LIN Hai-cao CAO Chu-nan(State Key Laboratory for Corrosion and Protection; Institute of Corrosion and Protection of Metal; Chinese Academy of Sciences; Shenyang 110015). CORROSION INTERFACE MORPHOLOGY AND FRACTAL ANALYSIS OF AMORPHOUS ALLOYS IN AIR. J Chin Soc Corr Pro, 1998, 18(4): 257-262.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1998/V18/I4/257

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