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← TechnologyWhich consequence results when sand casting steel components experiences excessive pouring temperature?
A)Increased inclusion formation and porosity✓
B)Improved surface finish and grain
C)Reduction in alloy segregation effects
D)Enhanced mechanical property consistency
💡 Explanation
Excessive pouring temperatures raise the gas solubility during solidification, increasing the risk of inclusion formation and related porosity because the solubility of gases increases in liquid metal. Therefore, inclusions form rather than a homogenous structure with fewer defects under lower temperatures.
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