ROLE OF NITROGEN IN IMPROVING RESISTANCE TO LOCALIZED CORROSION IN AUSTENITIC STAINLESS STEELS.

R. Bandy; Y. C. Lu; R. C. Newman; C. R. Clayton

ROLE OF NITROGEN IN IMPROVING RESISTANCE TO LOCALIZED CORROSION IN AUSTENITIC STAINLESS STEELS.

R. Bandy
, Y. C. Lu
, R. C. Newman
, C. R. Clayton

Materials Science and Engineering

Stony Brook University

Brookhaven National Laboratory

Research output: Contribution to journal › Conference article › peer-review

15 Scopus citations

Abstract

Nitrogen additions of 0. 45 to 0. 5 wt% to an austenitic stainless steel containing about 22 Cr, 20 Ni and 6 Mo (all wt%) dramatically enhance its resistance to localized corrosion. The electrochemical behavior of this alloy is studied as a function of chloride ion concentration and temperature. Also, its corrosion resistance is compared with that of a similar commercial alloy with normal residual nitrogen of only 0. 04 wt%. Compositional analyses of the passivated surface of the high nitrogen alloy show an enrichment of nitrogen at the metal-passive film interface, with a binding energy similar to that of the bulk nitrogen on the fully sputtered surface. The role of nitrogen in enhancing the corrosion resistance is discussed in light of the above results and some recent concepts on passivity.

Original language	English
Pages (from-to)	471-481
Number of pages	11
Journal	Proceedings - The Electrochemical Society
Volume	84-9
State	Published - 1984

Cite this

@article{7b9eb3f491ae49fb9a79c8756bba5b20,

title = "ROLE OF NITROGEN IN IMPROVING RESISTANCE TO LOCALIZED CORROSION IN AUSTENITIC STAINLESS STEELS.",

abstract = "Nitrogen additions of 0. 45 to 0. 5 wt\% to an austenitic stainless steel containing about 22 Cr, 20 Ni and 6 Mo (all wt\%) dramatically enhance its resistance to localized corrosion. The electrochemical behavior of this alloy is studied as a function of chloride ion concentration and temperature. Also, its corrosion resistance is compared with that of a similar commercial alloy with normal residual nitrogen of only 0. 04 wt\%. Compositional analyses of the passivated surface of the high nitrogen alloy show an enrichment of nitrogen at the metal-passive film interface, with a binding energy similar to that of the bulk nitrogen on the fully sputtered surface. The role of nitrogen in enhancing the corrosion resistance is discussed in light of the above results and some recent concepts on passivity.",

author = "R. Bandy and Lu, \{Y. C.\} and Newman, \{R. C.\} and Clayton, \{C. R.\}",

year = "1984",

language = "English",

volume = "84-9",

pages = "471--481",

journal = "Proceedings - The Electrochemical Society",

issn = "0161-6374",

}

TY - JOUR

T1 - ROLE OF NITROGEN IN IMPROVING RESISTANCE TO LOCALIZED CORROSION IN AUSTENITIC STAINLESS STEELS.

AU - Bandy, R.

AU - Lu, Y. C.

AU - Newman, R. C.

AU - Clayton, C. R.

PY - 1984

Y1 - 1984

N2 - Nitrogen additions of 0. 45 to 0. 5 wt% to an austenitic stainless steel containing about 22 Cr, 20 Ni and 6 Mo (all wt%) dramatically enhance its resistance to localized corrosion. The electrochemical behavior of this alloy is studied as a function of chloride ion concentration and temperature. Also, its corrosion resistance is compared with that of a similar commercial alloy with normal residual nitrogen of only 0. 04 wt%. Compositional analyses of the passivated surface of the high nitrogen alloy show an enrichment of nitrogen at the metal-passive film interface, with a binding energy similar to that of the bulk nitrogen on the fully sputtered surface. The role of nitrogen in enhancing the corrosion resistance is discussed in light of the above results and some recent concepts on passivity.

AB - Nitrogen additions of 0. 45 to 0. 5 wt% to an austenitic stainless steel containing about 22 Cr, 20 Ni and 6 Mo (all wt%) dramatically enhance its resistance to localized corrosion. The electrochemical behavior of this alloy is studied as a function of chloride ion concentration and temperature. Also, its corrosion resistance is compared with that of a similar commercial alloy with normal residual nitrogen of only 0. 04 wt%. Compositional analyses of the passivated surface of the high nitrogen alloy show an enrichment of nitrogen at the metal-passive film interface, with a binding energy similar to that of the bulk nitrogen on the fully sputtered surface. The role of nitrogen in enhancing the corrosion resistance is discussed in light of the above results and some recent concepts on passivity.

UR - https://www.scopus.com/pages/publications/0021649973

M3 - Conference article

SN - 0161-6374

VL - 84-9

SP - 471

EP - 481

JO - Proceedings - The Electrochemical Society

JF - Proceedings - The Electrochemical Society

ER -

ROLE OF NITROGEN IN IMPROVING RESISTANCE TO LOCALIZED CORROSION IN AUSTENITIC STAINLESS STEELS.

Abstract

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