研究了非调质钢30MnVS奥氏体化后在400～600 ℃等温转变的组织构成及显微硬度变化;采用连续截面和计算机辅助重建法观察了铁素体的三维形貌.结果表明: 随处理温度的降低,针状铁素体量减少,贝氏体量增加;冷却速度的提高,有利于组织的细化并使针状铁素体数量增加.晶界铁素体在三维空间呈弯曲板状;晶内铁素体在夹杂物上形核,其三维形貌不同于二维的等轴状,而呈扁长片状,应归属于针状铁素体.
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