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Which mechanical instability results when martensite inclusions occur within austenite?

A)Surface compressive stress increases significantly
B)Lüders band elastic deformation concentrates
C)Intergranular corrosion risk intensifies
D)Work hardening rate quickly diminishes

💡 Explanation

Lüders band formation concentrates at the interface because martensite transformation introduces significant local lattice strain gradients. The *strain gradient plasticity* mechanism leads to localized yielding. Therefore, Lüders band concentrate, rather than diffused stress or corrosion.

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