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← ScienceWhich risk increases when crystal grain boundaries become corroded?
A)Intergranular stress corrosion cracking susceptibility✓
B)Increased Hall Effect voltage magnitude
C)Enhanced electron-phonon coupling strength
D)Reduced ductile-brittle temperature transition
💡 Explanation
Corrosion attacks weaken the grain boundaries within the crystal lattice. Increased concentration of stress leads to intergranular stress corrosion cracking, specifically. because the grain boundaries are vulnerable, and a chemical attack creates stress concentrations to cause crack propagation rather than homogeneous plastic deformation.
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