Which material degradation risk increases when a high-powered laser induces thermoelastic stress?

💡 Explanation

Fatigue crack propagation accelerates because cyclical thermoelastic stress leads to microcrack formation and growth, therefore answer C rather than etching which requires specific ablation, or corrosion which requires reactive environment.

• Which outcome results when spatial coherence is reduced in laser metal deposition?
• Which risk increases when a fluid's velocity exceeds levels predicted by a simplified Bernoulli equation?
• Which risk increases significantly when Van 't Hoff plots become non-linear?
• Which consequence results when exceeding the yield point of austenite?
• Which outcome reduces efficiency in supercritical Rankine cycles?
• Which risk increases when the bypass valve on a pressure relief valve fails to fully close?