Influence of the silicon content on the mechanical properties of AA6xxx laser welds

Cold forming of Al-5251 and Al-6082 tailored welded blanks manufactured by laser and electron beam welding

“…This resulted in significant improvements in hardness, ductility and corrosion resistance behaviour. The presence of porosity and therefore low hardness in FZ was also reported by Fabrègue et al [11] during LBW of 2.5 mm thick Al-6056 (T4) butt joints using Al-4047 filler wire and by Pakdil et al [12] during LBW of 6 mm thick Al-6056 (T6) T joints using AlSi12 filler wire. Although the keyhole mode cannot reduce the problem related to high surface reflectivity of Al alloys, but it can be eliminated either using a graphite based lubricant coating or using EBW simply being unresponsive to the surface reflectivity problems.…”

On the application of laser shock peening for retardation of surface fatigue cracks in laser beam‐welded AA6056

“…As a fusion‐weldable aluminium alloy, the precipitation‐hardened Al–Mg–Si–Cu alloy AA6056 is used by the Airbus company as the skin material for manufacturing fuselage structures by LBW 3 . Compared with the widely used AA2024 in aircraft airframes, AA6056 does not show significant challenges for LBW regarding hot cracking susceptibility that can be avoided by the application of an appropriate aluminium filler wire material with a high Si content 39 . In this study, the AA6056 sheet material with a thickness of 6.2 mm was cut into blanks (250‐mm width and 500‐mm length).…”

Impact of the gamma and neutron attenuation behaviors on the functionally graded composite materials

“…TiO 2 offers low cost, non-toxicity, corrosion resistance, lightness, high strength, high photoactivity, and superior gamma shielding properties.TiO 2 exhibits superior gamma shielding properties due to its good photocatalytic activity, low cost, plenty of resources, process yield, lightness, ease of preparation, corrosion resistance, photostability, chemical properties, non-toxicity, biocompatibility, wide range of bands (3.0-3.2 eV), recyclability, and high strength. Therefore, TiO 2 is used in cosmetics, medical implants, hydride sulfurization, paint industry, dehydrogenation, food products, solar cells, semiconductors, and radiation shielding [24][25][26][27][28][29][30][31][32][33][34][35][36][37]. Although TiO 2 's mass attenuation coefficients are slightly below those of the Pb element, TiO 2 offers the most stable and readily available high-density that is environment friendly.…”