Corrosion behavior of boron- and phosphorus-implanted Fe-40Cr alloy in reducing acid solutions

S. C. Tjong; M. C. Wong; S. P. Wong

doi:10.1016/0169-4332(93)90273-E

Corrosion behavior of boron- and phosphorus-implanted Fe-40Cr alloy in reducing acid solutions

S. C. Tjong
, M. C. Wong
, S. P. Wong

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

6 Citations (Scopus)

Abstract

Fe-40Cr alloy was implanted with boron and phosphorus ions of various doses at 150 keV. Electrochemical tests were used to investigate the passivation behavior of implanted specimens in deaerated reducing acid solutions. The potentiodynamic measurements indicated that the phosphorus ions were more effective than boron ions in improving the corrosion resistance of Fe-40Cr alloy in sulfuric acid. Furthermore, high doses of phosphorus implantation (10¹⁷ions/cm²) induced spontaneous passivation of the Fe-40Cr alloy in 1N H₂SO₄ solution. This behavior was explained in terms of the effect of P ions on the hydrogen exchange current density in sulfuric acid solution. However, boron and phosphorus ions were found to be ineffective in promoting self-passivation of the Fe-40Cr alloy in 1N HCl solution. © 1993.

Original language	English
Pages (from-to)	127-132
Journal	Applied Surface Science
Volume	64
Issue number	2
DOIs	https://doi.org/10.1016/0169-4332(93)90273-E
Publication status	Published - Feb 1993

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title = "Corrosion behavior of boron- and phosphorus-implanted Fe-40Cr alloy in reducing acid solutions",

abstract = "Fe-40Cr alloy was implanted with boron and phosphorus ions of various doses at 150 keV. Electrochemical tests were used to investigate the passivation behavior of implanted specimens in deaerated reducing acid solutions. The potentiodynamic measurements indicated that the phosphorus ions were more effective than boron ions in improving the corrosion resistance of Fe-40Cr alloy in sulfuric acid. Furthermore, high doses of phosphorus implantation (1017ions/cm2) induced spontaneous passivation of the Fe-40Cr alloy in 1N H2SO4 solution. This behavior was explained in terms of the effect of P ions on the hydrogen exchange current density in sulfuric acid solution. However, boron and phosphorus ions were found to be ineffective in promoting self-passivation of the Fe-40Cr alloy in 1N HCl solution. {\textcopyright} 1993.",

author = "Tjong, \{S. C.\} and Wong, \{M. C.\} and Wong, \{S. P.\}",

year = "1993",

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doi = "10.1016/0169-4332(93)90273-E",

language = "English",

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journal = "Applied Surface Science",

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TY - JOUR

T1 - Corrosion behavior of boron- and phosphorus-implanted Fe-40Cr alloy in reducing acid solutions

AU - Tjong, S. C.

AU - Wong, M. C.

AU - Wong, S. P.

PY - 1993/2

Y1 - 1993/2

N2 - Fe-40Cr alloy was implanted with boron and phosphorus ions of various doses at 150 keV. Electrochemical tests were used to investigate the passivation behavior of implanted specimens in deaerated reducing acid solutions. The potentiodynamic measurements indicated that the phosphorus ions were more effective than boron ions in improving the corrosion resistance of Fe-40Cr alloy in sulfuric acid. Furthermore, high doses of phosphorus implantation (1017ions/cm2) induced spontaneous passivation of the Fe-40Cr alloy in 1N H2SO4 solution. This behavior was explained in terms of the effect of P ions on the hydrogen exchange current density in sulfuric acid solution. However, boron and phosphorus ions were found to be ineffective in promoting self-passivation of the Fe-40Cr alloy in 1N HCl solution. © 1993.

AB - Fe-40Cr alloy was implanted with boron and phosphorus ions of various doses at 150 keV. Electrochemical tests were used to investigate the passivation behavior of implanted specimens in deaerated reducing acid solutions. The potentiodynamic measurements indicated that the phosphorus ions were more effective than boron ions in improving the corrosion resistance of Fe-40Cr alloy in sulfuric acid. Furthermore, high doses of phosphorus implantation (1017ions/cm2) induced spontaneous passivation of the Fe-40Cr alloy in 1N H2SO4 solution. This behavior was explained in terms of the effect of P ions on the hydrogen exchange current density in sulfuric acid solution. However, boron and phosphorus ions were found to be ineffective in promoting self-passivation of the Fe-40Cr alloy in 1N HCl solution. © 1993.

UR - https://www.scopus.com/pages/publications/0027540001

UR - https://www.scopus.com/pages/publications/0027540001#tab=impact

U2 - 10.1016/0169-4332(93)90273-E

DO - 10.1016/0169-4332(93)90273-E

M3 - RGC 21 - Publication in refereed journal

SN - 0169-4332

VL - 64

SP - 127

EP - 132

JO - Applied Surface Science

JF - Applied Surface Science

IS - 2

ER -

Corrosion behavior of boron- and phosphorus-implanted Fe-40Cr alloy in reducing acid solutions

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