Reasons for the higher resistivity of austenitic steel than martensitic steel?

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Atef S. Hamada

Austenitic has closed packed structure, fcc. However, martensite is open structure bct.

Grzegorz Łukaszewicz

Higher resistivity means more difficult the movement of electrons. The electron flow diffusing microstructure elements may be grain boundaries, dislocations, and the like. I think that the occurrence of martensitic transformation in steel leads to the occurrence of such obstacles to movement.