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Ductile dimples

Microscopic cup-shaped depressions visible on a ductile overload fracture surface under SEM, formed by nucleation, growth, and coalescence of microvoids at second-phase particles; indicate substantial plastic deformation before fracture.

Explained in

Forensic Engineering: Failure Analysis and Fractography

Related terms

Beach marks Damage-tolerant design Fatigue striations Fractography MCAS Progressive collapse River patterns S-N curve Safe-life design Stress-concentration factor (Kt)Stress-corrosion cracking (SCC)

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