Corrosion resistance of N-, Cr- or Cr + N - implanted AISI 420

Juha-Pekka Hirvonen, Dorothee Ruck, S. Yan, Amar Mahiout, Pauli Torri, Jari Likonen

    Research output: Contribution to journalArticleScientificpeer-review

    22 Citations (Scopus)

    Abstract

    AISI 420 stainless steel samples with a diameter of 25 mm were implanted with nitrogen, with chromium or with chromium and nitrogen.
    The implantation energy and nominal fluence for Cr were 230 keV and 2 × 1017 ions cm−2, and those for N were 50 keV and 2.5 × 1017 ions cm−2 respectively. In nitrogen implantations, 15N isotopes were used in order to perform a depth profiling utilizing a resonance of the 15N(p,αγ)12C reaction.
    For all three samples and an unimplanted reference sample, anodic polarization diagrams were determined in 1 N H2SO4 solution. The unimplanted sample showed an active peak and a passivation behavior. Chromium implantation decreased the peak current density, but both in the case of the chromium implanted sample and the nitrogen implanted sample, passivation characteristics were unchanged. In the case of the sample implanted with chromium and nitrogen the measured anodic polarization curve exhibited a totally different behavior.
    The active peak had almost completely disappeared (a reduction of four orders of the magnitude in current density compared with that of the unimplanted sample) and the passivation current density was also greatly decreased.
    Secondary-ion mass spectroscopy was utilized in analyzing surface films, which revealed a complex structure of a passive layer in the case of the sample implanted with both chromium and nitrogen.
    Original languageEnglish
    Pages (from-to)760-764
    JournalSurface and Coatings Technology
    Volume74-75
    Issue numberPart 2
    DOIs
    Publication statusPublished - 1995
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Chromium
    corrosion resistance
    Corrosion resistance
    Nitrogen
    chromium
    Passivation
    nitrogen
    Current density
    Anodic polarization
    Ions
    passivity
    implantation
    current density
    Depth profiling
    Stainless Steel
    Isotopes
    Ion implantation
    ions
    Stainless steel
    Spectroscopy

    Cite this

    Hirvonen, Juha-Pekka ; Ruck, Dorothee ; Yan, S. ; Mahiout, Amar ; Torri, Pauli ; Likonen, Jari. / Corrosion resistance of N-, Cr- or Cr + N - implanted AISI 420. In: Surface and Coatings Technology. 1995 ; Vol. 74-75, No. Part 2. pp. 760-764.
    @article{8ca42f5ec03348a389a8f2eec8719340,
    title = "Corrosion resistance of N-, Cr- or Cr + N - implanted AISI 420",
    abstract = "AISI 420 stainless steel samples with a diameter of 25 mm were implanted with nitrogen, with chromium or with chromium and nitrogen. The implantation energy and nominal fluence for Cr were 230 keV and 2 × 1017 ions cm−2, and those for N were 50 keV and 2.5 × 1017 ions cm−2 respectively. In nitrogen implantations, 15N isotopes were used in order to perform a depth profiling utilizing a resonance of the 15N(p,αγ)12C reaction. For all three samples and an unimplanted reference sample, anodic polarization diagrams were determined in 1 N H2SO4 solution. The unimplanted sample showed an active peak and a passivation behavior. Chromium implantation decreased the peak current density, but both in the case of the chromium implanted sample and the nitrogen implanted sample, passivation characteristics were unchanged. In the case of the sample implanted with chromium and nitrogen the measured anodic polarization curve exhibited a totally different behavior. The active peak had almost completely disappeared (a reduction of four orders of the magnitude in current density compared with that of the unimplanted sample) and the passivation current density was also greatly decreased. Secondary-ion mass spectroscopy was utilized in analyzing surface films, which revealed a complex structure of a passive layer in the case of the sample implanted with both chromium and nitrogen.",
    author = "Juha-Pekka Hirvonen and Dorothee Ruck and S. Yan and Amar Mahiout and Pauli Torri and Jari Likonen",
    year = "1995",
    doi = "10.1016/0257-8972(95)08273-5",
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    Hirvonen, J-P, Ruck, D, Yan, S, Mahiout, A, Torri, P & Likonen, J 1995, 'Corrosion resistance of N-, Cr- or Cr + N - implanted AISI 420', Surface and Coatings Technology, vol. 74-75, no. Part 2, pp. 760-764. https://doi.org/10.1016/0257-8972(95)08273-5

    Corrosion resistance of N-, Cr- or Cr + N - implanted AISI 420. / Hirvonen, Juha-Pekka; Ruck, Dorothee; Yan, S.; Mahiout, Amar; Torri, Pauli; Likonen, Jari.

    In: Surface and Coatings Technology, Vol. 74-75, No. Part 2, 1995, p. 760-764.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Corrosion resistance of N-, Cr- or Cr + N - implanted AISI 420

    AU - Hirvonen, Juha-Pekka

    AU - Ruck, Dorothee

    AU - Yan, S.

    AU - Mahiout, Amar

    AU - Torri, Pauli

    AU - Likonen, Jari

    PY - 1995

    Y1 - 1995

    N2 - AISI 420 stainless steel samples with a diameter of 25 mm were implanted with nitrogen, with chromium or with chromium and nitrogen. The implantation energy and nominal fluence for Cr were 230 keV and 2 × 1017 ions cm−2, and those for N were 50 keV and 2.5 × 1017 ions cm−2 respectively. In nitrogen implantations, 15N isotopes were used in order to perform a depth profiling utilizing a resonance of the 15N(p,αγ)12C reaction. For all three samples and an unimplanted reference sample, anodic polarization diagrams were determined in 1 N H2SO4 solution. The unimplanted sample showed an active peak and a passivation behavior. Chromium implantation decreased the peak current density, but both in the case of the chromium implanted sample and the nitrogen implanted sample, passivation characteristics were unchanged. In the case of the sample implanted with chromium and nitrogen the measured anodic polarization curve exhibited a totally different behavior. The active peak had almost completely disappeared (a reduction of four orders of the magnitude in current density compared with that of the unimplanted sample) and the passivation current density was also greatly decreased. Secondary-ion mass spectroscopy was utilized in analyzing surface films, which revealed a complex structure of a passive layer in the case of the sample implanted with both chromium and nitrogen.

    AB - AISI 420 stainless steel samples with a diameter of 25 mm were implanted with nitrogen, with chromium or with chromium and nitrogen. The implantation energy and nominal fluence for Cr were 230 keV and 2 × 1017 ions cm−2, and those for N were 50 keV and 2.5 × 1017 ions cm−2 respectively. In nitrogen implantations, 15N isotopes were used in order to perform a depth profiling utilizing a resonance of the 15N(p,αγ)12C reaction. For all three samples and an unimplanted reference sample, anodic polarization diagrams were determined in 1 N H2SO4 solution. The unimplanted sample showed an active peak and a passivation behavior. Chromium implantation decreased the peak current density, but both in the case of the chromium implanted sample and the nitrogen implanted sample, passivation characteristics were unchanged. In the case of the sample implanted with chromium and nitrogen the measured anodic polarization curve exhibited a totally different behavior. The active peak had almost completely disappeared (a reduction of four orders of the magnitude in current density compared with that of the unimplanted sample) and the passivation current density was also greatly decreased. Secondary-ion mass spectroscopy was utilized in analyzing surface films, which revealed a complex structure of a passive layer in the case of the sample implanted with both chromium and nitrogen.

    U2 - 10.1016/0257-8972(95)08273-5

    DO - 10.1016/0257-8972(95)08273-5

    M3 - Article

    VL - 74-75

    SP - 760

    EP - 764

    JO - Surface and Coatings Technology

    JF - Surface and Coatings Technology

    SN - 0257-8972

    IS - Part 2

    ER -