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Which outcome occurs when annealing stresses are deficient during early cast grey iron crossbow production?

A)Brittle fracture becomes more prevalent
B)Improved material hardness overall results
C)Creep resistance benefits occur gradually
D)Corrosion resistance notably improves

💡 Explanation

Brittle fracture increases as residual stresses weaken grain boundaries because insufficient annealing relieves these stresses through diffusion. Therefore, crossbow components prematurely fail, rather than exhibiting improved ductility or mechanical properties under intended load bearing, because annealing was incomplete.

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