围绕不同的成分、变形温度和变形量同再结晶退火后的合金硬度之间的关系，通过偏光显微组织分析以及硬度测试对铝硅合金变形再结晶进行了研究。结果表明，铝硅合金在500℃进行0～h固溶处理后以较快的速度进行变形会使得退火后再结晶晶粒尺寸变大。硅含量较少的时候可以促进铝硅合金再结晶的发生，并使再结晶晶粒粗化，而当硅含量大于1％之后，随着硅含量的增加再结晶晶粒会显著减小。
Effects of silicon contents, deformation and solution treatment on hardness of the recrystalled wrought aluminum alloy were investigated by means of optical microscopy and hardness tests. The results show that coarse grain size in the aluminumsilicon alloy solutiontreated at 500 ℃ for 30 rain and followed by rapidly compressive deformation is obtained after annealingdue to the rapid deformation. Less silicon contents of alu, in inumsilicon alloy can accelerate the recrystallization and get the coarse grain. The addition of silicon significantly causes a reduction in recrystallization grain size when silicon content is greater than 1%.
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