5 讨论本文所研究的合金成分范围和均匀化处理对热轧带材第二相弥散度都有重要的影响。一次质点的体积分数主要取决于铁含量,但其平均尺寸随均匀化温度提高或含硅α相比例增加而增大。某些研究指出,能明显观察到Al(Fe,Mn)向α相的转变过程,但在本研究中很难观察到这些质点的局部转变。用电子显微镜没有看到这种现象,仅在光学显微镜下广泛搜索时才发现过为数甚少的例子。 5 Discussion This article studies the alloy composition range and homogenization of hot-rolled strip second phase dispersion have a significant impact. The volume fraction of a particle depends primarily on the iron content, but its average size increases with increasing homogenization temperature or increasing proportion of silicon-containing α phase. Some studies indicate that the transformation of Al (Fe, Mn) to α phase is clearly observed, but local transitions of these particles are hard to be observed in this study. This phenomenon was not observed with the electron microscope, and only a few examples were found extensively under a light microscope.