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Aluminium-lithium (Al-Li)-based alloy, equivalent to AA8090 specification, was cast and processed to 12-90mm thick semi-finished products by upset forging and rolling. Increasing the Zr content within the AA8090 specification from ~0.06 to ~0.12% resulted in refinement of the as-cast grain structure, and improvement in in-plane and short transverse tensile properties.The in-plane tensile properties...
The grain structure, age hardening response, precipitate structure and tensile properties of AA8090 alloy plate without and with minor additions of Sc were investigated. Primary aluminide particles were present in all alloys. Sc additions >=0.43% resulted in refinement of the as-cast grain structure. Further investigations on 0.11% and 0.22% Sc containing alloys showed that the subgrain size was...
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