Which risk increases during closed-die forging of aluminum at temperatures exceeding the recrystallization threshold?

💡 Explanation

Grain boundary sliding increases at elevated temperatures due to reduced mechanical resistance, therefore leading to creep and potential dimensional inaccuracies during forging, because diffusional creep is dominant, rather than dislocation climb limited creep. Cold working results in strain hardening.

• Within fiber optic communication which impairment increases due to stimulated Raman scattering?
• Which risk is elevated when epoxy coating is damaged on rebar embedded in concrete bridge supports?
• Which risk increases when a hydraulic servomotor experiences high acceleration?
• Which risk increases when a prestressed concrete bridge deck experiences sustained chloride ingress?
• Which consequence results when localized boiling occurs in fluid?
• Which risk increases when a three-phase induction motor feeder breaker is sized significantly oversized?