Author(s)

K.R. Trethewey & P.R. Roberge

Abstract

The characterization of surface profiles created by localized corrosion with stochastic and fractal analysis techniques K.R. Trethewey,* P.R. Roberge* " Royal Naval Engineering College, Manadon, Plymouth PL5 3AQ, UK * Royal Military College, Kingston, Ontario, Canada K7K 5LO ABSTRACT The development of methods for analysis of non-linear dynamic systems promises to make a great impact in different fields of corrosion engineering. Techniques recently shown to be effective in the analysis of electrochemical noise have been used to investigate the quantitative information to be gained from topographical profiles of corroding surfaces. The stochastic process detector (SPD) technique was shown to be especially advantageous for delineation of localized features at a given magnification, whilst the rescaled range (R/S) analysis technique can provide a direct method of determination of fractal dimensions. The SPD method was found to be a particularly sensitive

Keywords