The influence of solution temperature on the corrosion behavior of 6061-T6 aluminum alloy in 3.5% NaCl solution was studied by electrochemical tests, weight loss method, and surface morphology analysis. The results show that the samples treated at different solution temperatures have different corrosion resistance. The anticorrosion resistance of aluminum alloys decreases first and then increases as the solution temperature increases. At 535 °C, the sample has the optimal corrosion resistance, with a slight corrosion degree, while the alloy sample treated at 555 °C shows the most severe degree of corrosion, with a large number of different sized pits and some ulcerous corrosion pits, as well the apparent intergranular corrosion. The corrosion behavior of different solid aluminum alloy samples is closely related to the microstructure. The Mg₂Si precipitates act as the anode phase to protect the substrate, and a decrease in the amount of AlFeSi precipitates reduces the number of micro-galvanic corrosion cells, and the severe segregation of AlFeSi precipitates accelerates the corrosion.

通过电化学测试，失重法和表面形貌分析研究了固溶温度对6061-T6铝合金在3.5％NaCl溶液中腐蚀行为的影响。结果表明，在不同固溶温度下处理的样品具有不同的耐腐蚀性。铝合金的耐腐蚀性首先随着固溶温度的升高而降低，然后升高。在535°C的温度下，样品具有最佳的耐腐蚀性，且腐蚀程度较轻；而在555°C的温度下处理的合金样品则显示出最严重的腐蚀程度，其中有许多不同大小的凹坑和一些溃疡性腐蚀凹坑，以及明显的晶间腐蚀。不同固体铝合金样品的腐蚀行为与显微组织密切相关。镁₂ Si析出物充当阳极相以保护基材，并且AlFeSi析出物数量的减少会减少微电流腐蚀电池的数量，并且AlFeSi析出物的严重偏析会加速腐蚀。