Effect of Alloy Elements and T6 Treatment on the Conductivity and Mechanical Properties of ZL111 Aluminum Alloy for Power Fittings
The effects of Si, Cu and Mg elements on the conductivity and mechanical properties of ZL111 were studied by using JMatpro simulation software, and the effects of solution temperature and aging temperature on the strength of ZL111 under different molding methods were studied based on the performance of power fittings and based on the composition of high-silicon, low-copper and low-magnesium alloys. The results show that the conductivity of the alloy decreases with the increase of Si and Cu contents, and increases with the increase of Mg content. The yield strength of the alloy increases with the increase of Si, Cu and Mg contents. The tensile strength of the alloy increases with the increase of Si content, and decreases with the increase of Cu and Mg content. The hardness of the alloy decreases with the increase of Si content, and increases with the increase of Cu and Mg contents. When the solution temperature is 540 ℃ and the aging temperature is 150 ℃, the strength of the alloy is the maximum value under the molding method, no matter which molding method is used.
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