CORROSION AND ANTI- CORROSION PROTECTION OF ARCHEOLOGICAL BRONZE ARTIFACTS

Corrosion and tarnish of aluminum bronze.

Masahiko NAKAYAMA*, John B. MOSER** and Evan H. GREENER** *Department of Dental Materials Science , Nippon Dental University, Tokyo 102 Japan **Department of Biological Materials, Dental School, Northwestern University, Chicago, Illinois, 60611 U.S.A. Address: Department of Biological Materials, Dental School, Northwestern University, 311 East Chicago Avenue, Chicago, Illinois 60611 U.S.A. Rece...

VIII-Metals-J-Corrosion protection-1_ CORROSION PROTECTION OF METALS

Nearly all metals, with the exception of gold and platinum, will corrode in an oxidising environment forming compounds such as oxides, hydroxides and sulphides. The degradation of metals by corrosion is a universal reaction, caused by the simple fact that the oxide of a metal has a much lower energy than the metal itself. Hence there is a strong driving force for the oxidation of metals. For ex...

Corrosion and Cathodic Protection Theory

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Classification of corrosion defects in NiAl bronze through image analysis

Corrosion surface damage in the form of pitting and micro-cracks is observed in many metals. Cracks usually initiate from the pits and grow under cyclic stresses and eventually lead to material failure. An image analysis based on wavelet transforms and fractals was used to study the corrosion morphology of nickel aluminum bronze metal under varying corrosion conditions and applied stresses. Ima...

Corrosion Factors and Corrosion Cells