Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich risk increases when aluminum casting chills too rapidly?
A)Elevated gas porosity within the metal✓
B)Increased alloy segregation throughout the casting
C)Reduced oxidation rate along mold interface
D)Higher crystalline structure within the solid
💡 Explanation
Gas solubility decreases notably as molten aluminum rapidly cools to its solid phase; therefore, hydrogen dissolved in the melt forms gas bubbles, increasing gas porosity within the casting, rather than allowing uniform distribution throughout the solidifying metal.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which outcome occurs when polyatomic molecule orbitals hybridize?
- Which consequence results when rapidly discharging a dielectric capacitor?
- Which consequence arises when inertial mass increases due to momentum?
- Which consequence causes image degradation in astronomical interferometry?
- Which outcome occurs when a silicon etchant contacts silicon nitride?
- Which safety risk increases within positron emission tomography (PET) imaging when using short-lived isotopes?
