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Glossary of MinSE


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C

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Also termed galvanic contact plating. A form of electroless plating in which a coating of some metal M is produced on a metal object by immersion in an electrolyte enriched in M. In addition a solid piece of metal M is attached to the object to be coated. The action is galvanic in nature; it is a pre-requisite that M should be relatively more anodic than the metal being coated.
flag Árammentes galvanizálás
:
The elastic and plastic stresses developed in a material during point contact loading. For example, the stresses developed in an object during indentation hardness testing. Also see Hertzian stresses.
flag Kontakt feszültség
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The interior part of a metal object that is not directly modified by a diffusion or deposition treatment.
flag Mag
:
The hardness of the substrate beneath a coating or diffusion zone. A term commonly used in the heat treatment sector in connection with nitrided or carburised steels.
flag Mag keménység
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The degradation of a conducting surface through electrochemical action.
flag Korrózió
:
Fracture failure resulting from the conjoint action of cyclic surface stresses and a corrosive environment.
flag Korróziós kifáradás
:
Usually referring to the metallic reaction product resulting from a corrosion reaction, although equally applicable to ions or gases produced in the same way.
flag Rozsda
:
The rate of progress of corrosion, often expressed as the rate of penetration, e.g., mm/year or as a weight loss per unit area per unit time, mg. dm-2 day-1
flag Korrózis arány
:
The resistance of any surface to atmospheric or aqueous corrosion, i.e., resistance to degradation through electrochemical action.
flag Korrózióval szemben ellenállóképesség
:
Wear taking place in a corrosive environment. The wear processes could involve abrasion or erosion or other mechanisms. Localised cold-working of the surface, e.g., caused during abrasion, renders the surface more prone to corrosion. Marine engine and food processing components are application sectors where corrosion-wear plays an important role in determining component servicability. The magnitude of the "rest" and "active" component cycles are of particular significance in this regard.
flag Korróziós kopás

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