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GLOSSARY "N"
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THE
SOLUTION TO CORROSION UNDER INSULATION |
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RG-2400
STOPS CORROSION |
GLOSSARY
OF CORROSION RELATED TERMS |
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RG-2400
will STOP existing corrosion and will prevent corrosion on new piping
systems. Minimal surface preparation is required. |
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RG-2400
has many uses:
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| NATURAL AGING | Spontaneous aging of a supersaturated solid solution at room temperature. See also aging. Compare with artificial aging. | |
| NERNST EQUATION | An equation that expresses the exact electromotive force of a cell in terms of the activities of products and reactants of the cell. | |
| NERNST LAYER | The diffusion layer or the hypothetical thickness of this layer as given by the theory of Nernst. It is defined by: id= nFD[(Co - C)/delta], where id is the diffusion limited current density. D is the diffusion coefficient, Co is the concentration at the electrode surface and delta is the Nernst thickness (0.5 mm in many cases of unstirred aqueous electrolytes) | |
| NERNST THICKNESS | The diffusion layer or the hypothetical thickness of this layer as given by the theory of Nernst. It is defined by: id= nFD[(Co - C)/delta], where id is the diffusion limited current density. D is the diffusion coefficient, Co is the concentration at the electrode surface and delta is the Nernst thickness (0.5 mm in many cases of unstirred aqueous electrolytes) | |
| NEUTRON EMBRITTLEMENT | Embrittlement resulting from bombardment with neutrons, usually encountered in metals that have been exposed to a neutron flux in the core of a reactor. In steels, neutron embrittlement is evidenced by a rise in the ductile-to-brittle transition temperature. | |
| NITRIDING | Introducing nitrogen into the surface layer of a solid ferrous alloy by holding at a suitable temperature (below Ac, for ferritic steels) in contact with a nitrogenous material, usually ammonia or molten cyanide of appropriate composition. Quenching is not required to produce a hard case. | |
| NITROCARBURIZING | Any of several processes in which both nitrogen and carbon are absorbed into the surface layers of a ferrous material at temperatures below the lower critical temperature and, by diffusion, create a concentration gradient. Nitrocarburizing is performed primarily to provide an antiscuflfing surface layer and to improve fatigue resistance. Compare with carbonitriding. | |
| NOBLE | The positive direction of electrode potential. thus resembling noble metals such as gold and platinum. | |
| NOBLE METAL | (1) A metal whose potential is highly positive relative to the hydrogen electrode. (2) A metal with marked resistance to chemical reaction. particularly to oxidation and to solution by inorganic acids. The term as often used is synonymous with precious metal. | |
| NOBLE POTENTIAL | A potential more cathodic (positive) than the standard hydrogen potential. | |
| NORMAL SOLUTION | An aqueous solution containing one gram equivalent of the active reagent in I L of the solution. | |
| NORMAL STRESS | The stress component perpendicular to a plane on which forces act. Normal stress may be either tensile or compressive. | |
| NORMALIZING | Heating a ferrous alloy to a suitable temperature above the transformation range and then cooling in air to a temperature substantially below the transformation range. | |
     RG-2400 STOPS CORROSION - PERIOD. "WHEN IT'S BLUE YOU'RE THROUGH!" |
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