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← TechnologyWhich risk increases dramatically for forged alloy connecting rods when subjected to ultrasonic testing?
A)Surface fatigue crack initiation
B)Increased grain boundary oxidation
C)Hydrogen embrittlement susceptibility✓
D)Reduced dislocation climb velocity
💡 Explanation
Hydrogen embrittlement susceptibility increases because ultrasonic testing can introduce hydrogen atoms into the forging's microstructure, through surface contamination. Therefore embrittlement increases rather than detecting fatigue cracks, because phased array inspection seeks internal defects if properly executed.
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