Long-term corrosion of cast irons and steel in marine and atmospheric environments

Long-term corrosion trends are important for assessing the remaining life of critical infrastructure. Herein the available literature data for grey cast iron and cast steel exposed to marine and to some atmospheric environments are shown to be consistent with the bi-modal model previously developed for steels. However, the development of the second mode takes longer. This is proposed as resulting from the graphitized zone slowing the diffusion of species controlling the longer term corrosion processes. A practical simplified model and its parameters are proposed.

[1]  R. Melchers.  Modeling of Marine Immersion Corrosion for Mild and Low-Alloy Steels—Part 1: Phenomenological Model , 2003 .

[2]  J. T. Gisborne.  Sea Water Corrosion Handbook, M.M. Schumacher (Ed.). Noyes Data Corporation, Park Ridge, New Jersey, U.S.A. (1979) , 1981 .

[3]  K. Asami,et al.  In-depth distribution of rusts on a plain carbon steel and weathering steels exposed to coastal-industrial atmosphere for 17 years , 2003 .

[4]  Charles Darwin,et al.  Experiments , 1800, The Medical and physical journal.

[5]  C R Southwell,et al.  CORROSION OF METALS IN TROPICAL WATERS, STRUCTURAL FERROUS METALS , 1970 .

[6]  U. R. Evans,et al.  The Corrosion and Oxidation of Metals: Scientific Principles and Practical Applications , 1960 .

[7]  R. Melchers.  The effect of corrosion on the structural reliability of steel offshore structures , 2005 .

[8]  Robert E. Melchers,et al.  Development of new applied models for steel corrosion in marine applications including shipping , 2008 .

[9]  A. Turnbull.  Review of modelling of pit propagation kinetics , 1993 .

[10]  Jacques Heyman.  Elements of the theory of structures , 1982 .

[11]  U. R. Evans,et al.  The corrosion and oxidation of metals , 1976 .

[12]  Robert E. Melchers,et al.  Transition from Marine Immersion to Coastal Atmospheric Corrosion for Structural Steels , 2007 .

[13]  Robert E. Melchers,et al.  Modelling immersion corrosion of structural steels in natural fresh and brackish waters , 2006 .

[14]  Robert E. Melchers,et al.  Long-term corrosion of steels exposed to marine environments , 2009 .

[15]  F. L. LaQUE.  The Corrosion Resistance of Ductile Iron , 1958 .

[16]  W. Hamilton,et al.  Sulphate-reducing bacteria and anaerobic corrosion. , 1985, Annual review of microbiology.

[17]  J. D. Bultman,et al.  CORROSION OF METALS IN TROPICAL ENVIRONMENTS. FINAL REPORT OF 16-YEAR EXPOSURES , 1976 .

[18]  Re Melchers,et al.  The critical involvement of anaerobic bacterial activity in modelling the corrosion behaviour of mild steel in marine environments , 2008 .

[19]  John R. Scully.  DECHEMA corrosion handbook, volume 8, sulfuric acid , 1992 .

[20]  Robert E. Melchers,et al.  Experiments, science and intuition in the development of models for the corrosion of steel infrastructure , 2009 .

[21]  M. E. Adams,et al.  Sulphate-reducing Bacteria and Internal Corrosion of Ferrous Pipes conveying Water , 1949, Nature.

[22]  H. T. Angus,et al.  Cast Iron: Physical and Engineering Properties , 1978 .

[23]  Yu. S. Shepelev,et al.  Mechanism of gray cast iron corrosion , 1978 .