Quality assessment of artificially aged A357 aluminum alloy cast ingots by introducing approximate expressions of the quality index QD

摘要: The mechanical performance of A357 cast ingot aluminum alloy specimens subjected to 25 different artificial aging heat treatments has been experimentally investigated. For the quality evaluation artificially aged alloys, index QD, proposed by authors, involved. QD interprets as potential an offer combinations tensile strength, ductility, and toughness at certain levels values. using relies on availability materials flow curve. To facilitate exploitation for assessment, approximations are developed. In approximations, is formulated a function ultimate yield elongation fracture, or alternatively, Rockwell hardness E Charpy impact energy Accurate estimations compared against values obtained approximations.