![]() ![]() Bottema et al., Recent development in aluminium alloys for the automotive industry. Wanhill, Aluminium-Lithium Alloys Processing, Properties, and Applications (Elsevier, UK, 2014) Proceedings of the Light Metals Technology Conference 2007, Quebec, Canada (2007) Rioja, in New Aluminum Lithium Alloys for Aerospace Applications. Knyazev, Al-Cu-Li and Al-Mg-Li alloys: phase composition, texture, and anisotropy of mechanical properties. Mohamed, Strength, deformation, fracture behaviour and ductility of aluminium-lithium alloys. Liu, The evolution of Al-Li base products for aerospace and space applications. Guo et al., Strengthening mechanisms, deformation behavior, and anisotropic mechanical properties of Al-Li alloys: a review. Soutis, Recent developments in advanced aircraft aluminium alloys. The AlLiSi phase is detrimental to the properties of the alloy, therefore homogenization treatment may be not profitable for microstructural refinement of Al–1.5Mg–0.6Si–3Li alloy. ![]() During the homogenization, most of the Mg 2Si phase at grain boundaries disappear, but AlLiSi ternary compounds precipitate and disperse at interior and boundary of grains because of the strong binding capacity between Li and Si element. These Li-containing phases completely dissolve into the matrix and the segregation of dendrite is eliminated after homogenization at 570 ☌ for 24 h. In addition, there also exists Li-containing phases, including T-Al 2LiMg and δ-AlLi phase in the α-Al matrix. Mg and Si elements segregate at grain boundaries to form intermetallic Mg 2Si phase. The results show that severe dendritic segregation exists in the as-cast ingot. The microstructural evolution and phase transformation of cast Al–1.5Mg–0.6Si–3Li (mass %) alloy during homogenization were investigated. ![]()
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