Calorized steel

Hot dip galvanizing has also been used on calorized steel. Mokhamed and Kukharev (1987) said that the best corrosion performance in a simulated atmospheric test was on samples calorized at 850°C for 4 hours in the mixture of ferroaluminum containing 40% Al followed by galvanizing at 450 C for 4 hours( ). 

Calorising Also spelled Calorizing. A proprietary process for protecting the surface of iron or steel by applying a layer of aluminum. Several methods of application may be used dipping, spraying, or chemical reaction with aluminum chloride. See also metal surface treatment. 

Calorizing is a process by which the surface of a wrought-iron tube is impregnated with metaUic aluminum. Calorized tubes resist oxidation better than the pure iron or steel tubes. 

While in Bavaria, Count Rumford carried out the cannon-boring experiments for which he is best known. The caloric theory held that heat is a kind of indestructible fluid ( caloric ) that is held in the spaces between the atoms of a body. Frictional forces were supposed to cause a rise in temperature by squeezing caloric fluid out of a body. Rumford s experiments involved boring into a horizontally-fixed cannon barrel with a blunt steel bit turned by horse power. He reported the results in 1798 ... 

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