Defect-induced cracking and fine granular characteristics in very-high-cycle fatigue of laser powder bed fusion AlSi10Mg alloy

[Display omitted] •Defect-induced cracking behavior in VHCF of SLMed AlSi10Mg alloy is investigated.•The influence of MPBs on the VHCF crack propagation is studied.•Short crack propagation modes and grain refinement characteristics are analyzed.•The correlation between grain refinement and crack pro...

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Veröffentlicht in:	International journal of fatigue 2022-05, Vol.158, p.106770, Article 106770
Hauptverfasser:	Li, Jianghua, Sun, Jingyu, Qian, Guian, Shi, Liting
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum base alloys Crack propagation Crystal defects Crystal structure Defect-induced crack Electron backscatter diffraction Fatigue cracking Fatigue cracks Fatigue failure Fracture mechanics Grain refinement High cycle fatigue Laser powder bed fusion Materials fatigue Microstructure Misalignment Misorientation Powder beds Propagation modes Short cracks Statistical analysis Stress propagation Stress ratio Very-high-cycle fatigue
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