Evaluation of near-threshold fatigue crack propagation in harmonic-structured CP titanium with a bimodal grain size distribution

•CP titanium with a bimodal harmonic structure exhibits low fatigue crack growth resistance.•A bimodal harmonic structure reduces the extent of crack closure.•A bimodal harmonic structure reduces the effective threshold stress intensity range ΔKeff,th.•Effect of grain size on ΔKeff,th of CP titanium...

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Veröffentlicht in:	Engineering fracture mechanics 2017-08, Vol.181, p.77-86
Hauptverfasser:	Kikuchi, Shoichi, Mori, Tetsuya, Kubozono, Hiroki, Nakai, Yoshikazu, Kawabata, Mie Ota, Ameyama, Kei
Format:	Artikel
Sprache:	eng
Schlagworte:	Commercially pure titanium Crack closure Crack propagation Fatigue Fatigue failure Fracture mechanics Grain refinement Grain size Grain size distribution Stress intensity Stress intensity factors Studies Threshold stress Titanium
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