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  2. Storage water heater - Wikipedia

    en.wikipedia.org/wiki/Storage_water_heater

    The storage tanks of water heaters are usually made out of steel with a lining of glass inside them. Water will corrode exposed steel, so the glass lining prevents or delays corrosion. The tanks also have magnesium anode rods. The anode rod will slow down corrosion of the steel tank by corroding in its place. [7]

  3. Galvanic anode - Wikipedia

    en.wikipedia.org/wiki/Galvanic_anode

    In brief, corrosion is a chemical reaction occurring by an electrochemical mechanism (a redox reaction). [1] During corrosion of iron or steel there are two reactions, oxidation (equation 1), where electrons leave the metal (and the metal dissolves, i.e. actual loss of metal results) and reduction, where the electrons are used to convert oxygen and water to hydroxide ions (equation 2): [2]

  4. Galvanic corrosion - Wikipedia

    en.wikipedia.org/wiki/Galvanic_corrosion

    Alloys of metals commonly used for sacrificial anodes include zinc, magnesium, and aluminium. This approach is commonplace in water heaters and many buried or immersed metallic structures. Cathodic protection can also be applied by connecting a direct current (DC) electrical power supply to oppose the corrosive galvanic current.

  5. Heating element - Wikipedia

    en.wikipedia.org/wiki/Heating_element

    Heating elements find application in a wide range of domestic, commercial, and industrial settings: Home Appliances: Common household appliances such as ovens, toasters, electric stoves, water heaters, and space heaters rely on heating elements to generate the necessary heat for their functions.

  6. Anode - Wikipedia

    en.wikipedia.org/wiki/Anode

    The terms anode and cathode are not defined by the voltage polarity of electrodes, but are usually defined by the direction of current through the electrode. An anode usually is the electrode of a device through which conventional current (positive charge) flows into the device from an external circuit, while a cathode usually is the electrode through which conventional current flows out of ...

  7. Cathodic protection - Wikipedia

    en.wikipedia.org/wiki/Cathodic_protection

    Over time the galvanic anode continues to corrode, consuming the anode material until eventually it must be replaced. Galvanic or sacrificial anodes are made in various shapes and sizes using alloys of zinc, magnesium, and aluminum. ASTM International publishes standards on the composition and manufacturing of galvanic anodes. [10] [11] [12]

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