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Modification of Stainless Steel Surfaces by Ion Beams for Improved Corrosion Resistance

Published online by Cambridge University Press:  25 February 2011

R. S. Bhattacharya
Affiliation:
Universal Energy Systems, Inc., 4401 Dayton-Xenia Rd., Dayton, Ohio 45432
C. N. Raffoul
Affiliation:
Universal Energy Systems, Inc., 4401 Dayton-Xenia Rd., Dayton, Ohio 45432
A. K. Rai
Affiliation:
Universal Energy Systems, Inc., 4401 Dayton-Xenia Rd., Dayton, Ohio 45432
P. P. Pronko
Affiliation:
Universal Energy Systems, Inc., 4401 Dayton-Xenia Rd., Dayton, Ohio 45432
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Abstract

An investigation of the ion beam mixing of Mo and Ta layers with 304 stainless steel and the potentiodynamic polarization behavior of the modified surfaces are described.

Alternating thin layers (<100Å) of stainless steel (304) and either Mo or Ta were deposited by electron beam evaporation. Ion mixing was performed with 2 MeV Ni+ at a fluence of 5 × 1016cm−2. Examination of the mixed surfaces with TEN revealed characteristics of the amorphous phase and in some cases being embedded with crystalline regions for both Mo and Ta mixed stainless steel surfaces. The amorphous surfaces were tested for their corrosion behavior in 1M H2SO4 and O.1M NaCl solutions by the potentiodynamic polarization method. Significantly improved corrosion behavior were obtained for modified surfaces compared to unmodified stainless steel.

Type
Research Article
Copyright
Copyright © Materials Research Society 1987

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References

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