Qualification of selective laser-melted Al alloys against fatigue damage by means of measurement and modeling techniques

• Published in: MATEC Web of Conferences Vol. 165; p. 2001
• Main Authors: Awd, Mustafa, Johannsen, Jan, Siddique, Shafaqat, Emmelmann, Claus, Walther, Frank
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Les Ulis EDP Sciences 01.01.2018
• Subjects: Aluminum base alloys; Computed tomography; Configurations; Constitution; Cooling rate; Crack initiation; Crack propagation; Damage accumulation; Fatigue failure; Fatigue strength; Finite element method; Fracture mechanics; Heating; High cycle fatigue; Laser beam melting; Low cycle fatigue; Measurement techniques; Mechanical properties; Microstructure; Modelling; Morphology; Porosity; Scanning electron microscopy; Silicon; Structural damage; Supersaturation

Aluminum alloys processed through selective laser melting possess unique features of microstructure, defect morphology and mechanical properties. Constitution of fine cellular dendrites results from the high-cooling rate of the melt pool during the consolidation process. Investigation of the microst...