Micromechanical Modeling of Fatigue Crack Nucleation around Non-Metallic Inclusions in Martensitic High-Strength Steels

Martensitic high-strength steels are prone to exhibit premature fatigue failure due to fatigue crack nucleation at non-metallic inclusions and other microstructural defects. This study investigates the fatigue crack nucleation behavior of the martensitic steel SAE 4150 at different microstructural d...

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Veröffentlicht in:	Metals (Basel ) 2019-12, Vol.9 (12), p.1258
Hauptverfasser:	Schäfer, Benjamin Josef, Sonnweber-Ribic, Petra, ul Hassan, Hamad, Hartmaier, Alexander
Format:	Artikel
Sprache:	eng
Schlagworte:	Alignment Aluminum alloys Configurations Crack initiation Crack propagation Damage assessment Defects Design defects Design of experiments Failure Fatigue failure Fracture mechanics Heat treatment High strength steel High strength steels Martensitic stainless steels Mathematical models Metal fatigue Nonmetallic inclusions Nucleation Parameters Residual stress Steel production Sulfur content
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