Localized Corrosion Risk Assessment Using Markov Analysis

The objective of this work was to develop the foundation for an interactive corrosion risk management tool for assessing the probability of failure of equipment/infrastructure as a function of threats (such as pitting corrosion and coating degradation) and mitigation schemes (such as inhibitors and coatings). The application of this work was to assist with corrosion management and maintenance planning of equipment/infrastructure given dynamic changes in environmental conditions. Markov models are developed to estimate pitting damage accumulation density distributions as a function of input parameters for pit nucleation and growth rates. The input parameters are selected based upon characterization with experimental or field observations over a sufficiently long period of time. Model predictions are benchmarked against laboratory pitting corrosion tests and long-term atmospheric exposure data for aluminum alloys, obtained from the literature. The models are also used to examine hypothetical scenarios for t...

[1]  J. Galvele,et al.  Transport Processes and the Mechanism of Pitting of Metals , 1976 .

[2]  J. L. Hudson,et al.  Nonequilibrium collective phenomena in the onset of pitting corrosion , 2009 .

[3]  Robert P. Wei,et al.  A probability model for the growth of corrosion pits in aluminum alloys induced by constituent particles , 1998 .

[4]  T. Shibata,et al.  1996 W.R. Whitney Award Lecture: Statistical and Stochastic Approaches to Localized Corrosion , 1996 .

[5]  R. Buchheit,et al.  Evaluation of a simple microstructural-electrochemical model for corrosion damage accumulation in microstructurally complex aluminum alloys , 2009 .

[6]  Francisco Caleyo,et al.  Markov Chain Models for the Stochastic Modeling of Pitting Corrosion , 2013 .

[7]  H. P. Hong,et al.  Application of the stochastic process to pitting corrosion , 1999 .

[8]  F. Caleyo,et al.  Markov chain modelling of pitting corrosion in underground pipelines , 2009 .

[9]  G. Frankel.  Pitting Corrosion of Metals A Review of the Critical Factors , 1998 .

[10]  Katie Arlene McCallum.  Probabilistic Analysis of Pipeline Reliability Using a Markov Process , 2012 .

[11]  R. Buchheit,et al.  Modeling pit initiation rate as a function of environment for Aluminum alloy 7075-T651 , 2012 .

[12]  A. Porro,et al.  Evolution of the Pitting of Aluminum Exposed to the Atmosphere , 1992 .

[13]  J. L. Hudson,et al.  A spatiotemporal model of interactions among metastable pits and the transition to pitting corrosion , 2005 .

[14]  David E. Williams,et al.  Stochastic Models of Pitting Corrosion of Stainless Steels II . Measurement and Interpretation of Data at Constant Potential , 1985 .

[15]  Robert E. Melchers,et al.  Statistical Characterization of Pitting Corrosion—Part 1: Data Analysis , 2005 .

[16]  John L. Hudson,et al.  Cooperative Stochastic Behavior in Localized Corrosion I. Model , 1997 .

[17]  D. G. Harlow,et al.  Probabilities of occurrence and detection of damage in airframe materials , 1999 .

[18]  J. L. Hudson,et al.  Metastable Pitting of Aluminum and Criteria for the Transition to Stable Pit Growth , 1994 .

[19]  A. V. Bushinskaya,et al.  Description of the degradation process for defective thin-walled pipeline systems by the Markovian model of pure destruction , 2010 .

[20]  Robert E. Melchers,et al.  Statistical Characterization of Pitting Corrosion—Part 2: Probabilistic Modeling for Maximum Pit Depth , 2005 .

[21]  E. S. Rodriguez,et al.  Part II: Development of a General Failure Control System for Estimating the Reliability of Deteriorating Structures , 1989 .

[22]  J. L. Hudson,et al.  Detection of Interactions among Localized Pitting Sites on Stainless Steel Using Spatial Statistics , 2005 .

[23]  R. Wei.  A model for particle-induced pit growth in aluminum alloys , 2001 .

[24]  Rudolph G. Buchheit,et al.  Stochastic modeling of pitting corrosion in aluminum alloys , 2013 .

[25]  F. Caleyo,et al.  Stochastic modeling of pitting corrosion: A new model for initiation and growth of multiple corrosion pits , 2007 .

[26]  J. L. Hudson,et al.  Spatial Interactions among Localized Corrosion Sites Experiments and Modeling , 2002 .

[27]  David E. Williams,et al.  Stochastic Models of Pitting Corrosion of Stainless Steels I . Modeling of the Initiation and Growth of Pits at Constant Potential , 1985 .

[28]  J. W. Provan,et al.  Part I: Development of a Markov Description of Pitting Corrosion , 1989 .

[29]  J. L. Hudson,et al.  Cooperative Stochastic Behavior in Localized Corrosion II. Experiments , 1997 .