Development and corrosion behavior ( electrochemical polarization method ) aluminum alloy ( LM- 1...

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Development and corrosion behavior ( electrochemical polarization method ) aluminum alloy ( LM- 13) Nano ZrO2 reinforced metal matrix composites refrigerated (CNMMCs) by Mind Map: Development and corrosion behavior ( electrochemical polarization method ) aluminum alloy ( LM- 13) Nano ZrO2 reinforced metal matrix composites refrigerated (CNMMCs)

1. Dispersoid content on corrosion behavior

1.1. If you have an effect on the corrosion behavior with the content of dispersoids . In addition to the dispersoid , the addition of Ni, Si together with Mn serves to further increase corrosion resistance .

2. Polarization

3. Electrochemical corrosion behavior of CNMMCs

3.1. Electro corrosion behavior Experimental results of the corrosion test done differently CNMMCs polarization (containing 3, 6 , 9 and 12 wt . % Content of dispersoids ) and curves obtained respectively resulting polarization. In each single corrosion test carried out , the corrosion rate gradually decreased with time , reaching a stable saturation value after a certain duration of the test. chemistry CNMMCs

4. Effect of alloying elements

4.1. Elements present in the alloy LM 13 A special alloy 2 -wt . % Ni , 1- wt . % Mn and 12 wt .

5. Refrigeration effect of solidification

5.1. The optical photomicrographs show the microstructure of the matrix contains 12 wt CNMM cooled . Cast dispersoid % copper using cold 25mm thick . The specimens of refrigerated CNMMCs are dictated by fine grain microstructure due to the cooling effect during solidification.

6. It is well known that polarization is the deviation of ( potential electrode ) electrochemical balance process due to the passage of electric current . In this investigation too, the values ​​obtained for the electrode polarization depend on the difference in the potential difference between the potential of the polarized electrode and the electrode in equilibrium with solution .