Which mechanism causes increased brittleness as temperature decreases in BCC metals?

💡 Explanation

Reduced dislocation jog mobility causes increased brittleness, because fewer dislocations can bypass obstacles at lower temperatures, resulting in increased stress concentration. Therefore, brittle fracturing increases rather than plastic deformation, because the critical stress is reached before extensive slip can occur.

• Which mechanism causes signal distortion when electromagnetic waves propagate through non-homogeneous dielectric material?
• Which effect limits maximum data transfer in fiber optic cables over long distances?
• Which efficiency loss occurs in internal combustion engines during rapid accelerations?
• Which outcome occurs when atmospheric ducting conditions arise?
• Which consequence results when extreme pressure overcomes NaCl's lattice?
• Which outcome occurs when thermal energy reduces molecular attraction within paraffin wax?