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← TechnologyWhich deformation accelerates when a forging press induces excessive strain?
A)Creep drastically lowers yield strength
B)Delamination occurs due to surface stress
C)Work hardening exceeds set tolerances✓
D)Grain growth increases impact toughness
💡 Explanation
Work hardening causes increased dislocation density which impedes plastic flow. Because stress exceeds material tolerances from progressive deformation, further impacts increase work hardening, therefore diminishing ductility, rather than increasing toughness if the material remained within tolerance.
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