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The Role of Grain Boundary Precipitates during Intergranular Fracture in 6xxx Series Aluminium Alloys
2021
Metals
During ageing, 6xxx aluminium alloys will develop a microstructure characterised by needle-shaped Mg/Si-rich precipitates in the bulk, precipitate-free zones along the grain boundaries and larger Mg/Si-rich precipitates on the grain boundary. Depending on, among other things, the size of the precipitate-free zone, these alloys are prone to intergranular fracture. The role of the grain boundary precipitates during the initiation and propagation of the intergranular fracture is still not fully
doi:10.3390/met11060894
fatcat:x4gzgcoaefhtfgwxffi2prkza4