2002 Volume 52 Issue 12 Pages 586-590
In order to investigate effects of low temperature aging and reversion treatment on the serration of 6061 aluminum alloys, the reversion at from 423 to 853 K was conducted for the specimens in which the serration disappeared with the preliminary aging at 403 K. The measurements of electrical resistivity, DSC analysis and TEM micrographs showed that the solute atom concentration for the reversed specimens in which the serration generated again decreased remarkably due to formation of the precipitates, such as GP–zone, random-type, β″–phase, β′–phase and β–phase. Therefore, it was suggested that the disappearance of the serration was not affected by decrease of the solute atom concentration.
