Plenary Lecture—1986: Effects of Alloy Composition and Microstructure on the Passivity of Stainless Steels
Year: 1986
Type: article
Abstract: The passive region of stainless steels (SSs), as defined by the low current regime between the active-passive transition and the pitting potential or the transpassive potential, is discussed in terms of solid solution alloying and microstructure. In considering the beneficial effects of solid solution alloying, emphasis is placed on chromium, molybdenum, and nitrogen. The limitations of passive behavior resulting from carbides, sulfides, sigma, chi, delta ferrite, alpha prime, and alloying element depletion at precipitates are described. Enhanced passivity resulting from surface modification by high energy beams is discussed in terms of metallurgical changes at the surface. Links between the polarization curve and environmental cracking regimes are noted, as well as topics for future research.
Source: CORROSION
DOI: 10.5006/1.3584918
Author: A. J. Sedriks
Institution: Office of Naval Research
Language: English
Subfield: Metals and Alloys
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2149148495