Abstract
The properties of heat treatable wrought aluminum alloys are primarily achieved through use of solution heat treatment processes defined in AMS 2770. Variation in these processes can greatly influence the final properties of the aluminum alloy material. This study specifically investigates the effects of the quenching solution used during the wrought aluminum alloy heat treatment process. The research varies the Type 1 polymer concentrations between 10 and 25 percent in the quenchant solution. The scope is limited to investigate aluminum 6061 and 7075 alloys treated to the T6 condition and uses plate stock ranging 1 to 2.5 inches in thickness. Statistical analysis is used to determine the magnitude of the effect of polymer percentage on material properties of the aluminum alloys at these conditions. This research is conducted to determine the basis for the glycol restrictions within the ranges typical to internal manufacturing processes. The conclusions of this research are based on statistical evaluation of tensile, yield, hardness, grain size and electrical conductivity results obtained as a result of the investigation.
