The ground (soils) does not confine electrical current to discrete paths in the same way as electrical cables do. It is meaningful to talk about the resistance per foot of a copper wire, but not meaningful to talk about the resistance per foot of a […]
A few years ago the word ‘corrosion” was not used with familiarity by most of those people charged with the maintenance of underground plant facilities. Rusting usually manifested itself in “red water” problems. Pitting in boilers was recognized as a treatment inadequacy. Leaking in underground […]
Recent work has made possible the application of anodic protection techniques to metals in active chemical environments. One outcome of this research is strong evidence to suggest that mild carbon steel and low alloy stainless steel can be rendered almost inert to severely corroding environments.
Since aqueous corrosion is electrochemical in nature, it is logical that electrochemical techniques can be used in its control. The electrochemical corrosion cell is made up of four essential components: the anode or electrode at which oxidizing processes take place and usually corrosion; the cathode […]
Cathodic protection is discussed in relation to the likelihood that its application will rest on economic considerations. Various methods are presented from the literature and a case is made for the use of the Equivalent Annual Cost Method together with several illustrations of its use.
Elements known to the ancients were given Latin names which were abbreviated. Iron was called Ferrum in Latin which was abbreviated to Fe. Copper was called Cuprum shortened to Cu, etc. More recently discovered elements are usually abbreviated by using the first two letters in […]