THE EFFECT OF ION BEAM MIXING ON AQUEOUS CORROSION OF IRON

J Chin Soc Corr Pro

1983, Vol. 3

Issue (3): 151-158 DOI:

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THE EFFECT OF ION BEAM MIXING ON AQUEOUS CORROSION OF IRON

Zhou Peide Zhou Zuyao Zou Shichang (Shanghai Institute of Metallurgy;Academia Sinica) Tian Wei Li Jun (Wuhan Institute of Iron and Steel)

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Abstract Electrochemical technique and Auger electron spectroscopy(AES)were employed for studies on the effect of aqueous corrosion of iron by means of ion beam mixing in order to envisage the possibility for developing a new approach in surface modification of materials. Fe specimens were deposited with Cr(～400)in vacuum and then bom- barded by argon ion beam at the dose range of 1·10~(14)～5~(15)Ar~+/cm~2. In comparing ion beam mixed specimens with unmixed ones,it is found that ion beam mixing reduces the anodic current I_i and I_m in anodic potentio- dynamic polarization curves by approximately one order of magnitude.This beneficial effect increases with bombardment dose of argon.AES result shows that this beneficial effect is mainly related with the formation of passive film with chromium oxide on the bombarded surface.And it is presumably associated with the formation of metastable phase on mixed boundary between the deposited layer and substrate. Transmission electron microscope examination has revealed that argon bub- bles were formed as main physical damage in mixed boundary layer and sub- strate in close vicinity to the original interface during argon bombardment.

Received: 25 June 1983

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Zhou Peide Zhou Zuyao Zou Shichang (Shanghai Institute of Metallurgy;Academia Sinica) Tian Wei Li Jun (Wuhan Institute of Iron and Steel). THE EFFECT OF ION BEAM MIXING ON AQUEOUS CORROSION OF IRON. J Chin Soc Corr Pro, 1983, 3(3): 151-158.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1983/V3/I3/151

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