Which consequence results when aluminum casting chills are incorrectly placed?

💡 Explanation

Improper chill placement alters the solidification rate unevenly because localized rapid cooling introduces significant thermal gradients creating increased gas solubility, causing porosity formation rather than uniform or suppressed microstructures. Therefore, porosity near thick sections increases.

• Which increased risk occurs on a robotic arm when resolver signals from an encoder are corrupted by electromagnetic interference?
• Which position error increases when a PLC executing inverse kinematics operates with insufficient encoder resolution on robotic arm joints?
• Which outcome occurs when anisotropic sensitivity arises in anisotropic magnetoresistive (AMR) sensors?
• Which outcome occurs when injector nozzle erosion impairs efficient mixing?
• Which risk sharply increases within electrical substation transformers when internal fault current exceeds circuit breaker interrupting capacity?
• Which outcome increases when a refrigeration system uses blended refrigerants and experiences a leak?