In metals, which region is more chemically reactive, the grain matrix or the grain boundary region? Why?

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Bilal Hussain · Answer

Grain boundaries are more reactive because they have grater free energy as compared to Grains. And this is all because of the disordered arrangement of atoms at boundaries.

Noureddine Saber · Answer

grain boundary region because it's not protected chemically

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In metals, which region is more chemically reactive, the grain matrix or the grain boundary region? Why?

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