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| ANODIC POLARIZATION STUDIES OF SOM E ION-IM RLANTED AND ION-MIX ED METAL SURFACES |
| Chen Heming Chen Qingming Feng Jiayou Bai Xinde and Wang Honghong(Qinghua University) |
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Abstract B~+ implantations to pure iron, pure nickel and S. S. 316L and ion-mixing with Fe-Ti system are conducted at low temperature in a liquid nitrogen cooled chamber. Electron diffraction and polarization curves are made from the implanted and mixed surfaces. Results show that the electrochemical behavior of the ion-implanted and ion-mlxed surfaces prevails substantially over that of their matrixes. Multi-polarization curves of the same specimen are used to study the corrosion behavior of the ion-implanted and ion-mixed surfaces, it is found that corrosion resistance correlates well with concentration-depth profile of ions.
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Received: 25 June 1987
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[1] Tsaur, B. Y., et al, Nucl. Inst. and Moth 182/183, 1～13(1981)
[2] Dearnaley, G., AERE-R10180(1981)
[3] Grant, W. A.; Williams, J. S., Sci. Prog., Oxf., 63． 27,(1976)
[4] Ashworth, V.; Grant. W. A.; Procter. R. P. M.; Wellington, T. C., Corrosion Sci. 16, 393, 775; 17, 947; 18, 681
[5] Conf. on "Ion Implantation and Icn Beam Analysis Techniques in Corrosion" Univ. of Manchester, UK. June(1978)
[6] Li, H. D.; Liu, B. X.; Chang, X. Z.; Wang, H. H.; Tao, K.; Lu, H. C. Proc, 2nd Int. Conf. on IBMM, U. S. A.,(1980) |
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