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1 – 4 of 4Continuing the summaries of papers presented at the recent Dechema Corrosion Congress, the following are all concerned with electro‐chemical mechanisms. Next month our report of…
Abstract
Continuing the summaries of papers presented at the recent Dechema Corrosion Congress, the following are all concerned with electro‐chemical mechanisms. Next month our report of the congress will end with summaries of some of the papers dealing with corrosion prevention.
The lubrication process may become interrelated with corrosion phenomena. Lubricants may be the products of a corrosion process, e.g., during boundary lubrication. They may also…
Abstract
The lubrication process may become interrelated with corrosion phenomena. Lubricants may be the products of a corrosion process, e.g., during boundary lubrication. They may also serve as a medium which protects the metal during the lubrication process from the corrosive attack of a humid and acidic atmosphere. For better understanding of the relation between lubrication and corrosion phenomena, the theory of corrosion is presented.
U.S.A. Autoclave testing of zirconium alloys. No significant difference between water corrosion of American and British Zircaloy 2 at 320°C. is observed when corrections for…
Abstract
U.S.A. Autoclave testing of zirconium alloys. No significant difference between water corrosion of American and British Zircaloy 2 at 320°C. is observed when corrections for variations in autoclave testing techniques are made. Nitrogen contents up to 220 p.p.m. can be tolerated in British Zircaloy without acceleration of attack. Mechanical polishing of the conventional nitric‐hydrofluoric acid pickle, as pre‐treatments prior to testing, appear to be equally efficient in minimising corrosion effects. Welding does not impair corrosion resistance, provided the weld is ‘bright’ as made and surface polished.
Radiochemical tracer investigation of mercury's role in aluminium corrosion. Radioactive tracer techniques permitted this study to be carried out more precisely than possible by…
Abstract
Radiochemical tracer investigation of mercury's role in aluminium corrosion. Radioactive tracer techniques permitted this study to be carried out more precisely than possible by standard analytical techniques, because they allowed accurate quantitative measurements of mercury pick‐up, and revealed the distribution of mercury on exposed specimens. Particular attention has been given to the mechanism whereby aluminium corrodes in a solution of mercuric salt. A process by which mercury makes the initial attack on aluminium, the manner in which further pick‐up takes place, and the relationship between the mercury pick‐up and the resulting corrosion have been deduced. Several results of practical consequence are described. Included is a technique for removing mercury contamination from aluminium.—(R. C. Plumb, M. H. Brown and J. E. Lewis, Corrosion, 12 (6), 277–285.)