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| THE EFFECT OF NITROGEN IMPLANTATION ON CORROSION RESISTANCE OF 1Cr18Ni9Ti |
| Weng Duan Gao Wanfu Huo Shizhong (Dalian University of Technology) |
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Abstract The modification of corrosion resistance of 1Cr18Ni9Ti stainless steel in Phosphonitrogen by nitrogen implantation was investigated by electrochemical measurements, TEM and AES. The results show that the open potential of implanted specimens shifts towards positive direction and that their corrosion current measured by weak polarization technique decreases. The passive current density is greatly affeted by implantation dose. The best modification effect has been obtained at dosage of 1×10~(17) N~+/cm~2 when an amorphous structure of the formation of nitride precipitate,excessive implantation is detrimental to corrosion resistance of the stainless steel.
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Received: 25 April 1991
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[1] Dearaley, G. and Hartley, N.E.W., Thin Solid Films, 54,215(1978)
[2] Welsch.G., Thin Solid Films, 187 305(1983)
[3] Ashworth, V. and Baxter D., Corrosion Science, 16, 775(1976)
[4] Kim, H. J., Corter,W. B. and Meletls, E. I., Materials Science Engineering, 69, 297(1985) |
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