INFLUENCE OF AGING ON MICROSTRUCTURE AND TENSILE BEHAVIOR OF Al ALLOY 8090
INFLUENCE OF AGING ON MICROSTRUCTURE AND TENSILE BEHAVIOR OF AI ALLOY 8090

The vuriations of microstructure and tensile behavior of an Al—Li一Cu—Mg—Zr alloy during aging are studied in this paper.It has been found that the fine δ’—phase precipitated inthe underaging condition and that theδ’—,S—and T_1—phases precipitate in the peak agingand the overaging conditions.The alloy exhibits tuansgranular fracture on the underagingcondition and mixture of transgranular and intergranular ruptures in the peak the peak aging andoveraging conditions.