Which outcome occurs when localized overheating initiates hydrogen embrittlement in piston connecting rods?

💡 Explanation

Increased crack propagation results from hydrogen embrittlement because hydrogen atoms diffuse into the steel lattice facilitated by heat-induced dislocation motion; the **diffusion accelerates** crack growth. Therefore cracking increases, rather than improving fatigue strength, due to weakened atomic bonds.

• Which risk increases when a high-speed proportional valve experiences excessive switching?
• Which instability develops if a PLC executes ladder logic faster than an actuator's mechanical response time?
• Which outcome occurs when signal attenuation increases excessively in fiber optics?
• Which critical constraint limits maximum stroke length in reciprocating engines?
• Which risk increases when a turbocharger in a diesel engine experiences excessive exhaust backpressure?
• Which outcome occurs when lateral wind load exceeds a column's engineered shear capacity in a high-rise?