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对三种低碳合金钢的贝氏体转变浮凸及组织分析表明:通常所谓的“粒状贝氏体”实际上常包括本质上并不完全相同的两种组织.一种在转变时有明显的表面浮凸效应,铁素体基体具有条状亚单元,岛状组成物呈方向性分布;另一种则见不到浮凸,铁素体基体为块状,岛状组成物呈无规则分布.
The bainite transformation of the three low carbon alloy steels and their microstructure analysis show that the so-called “granular bainite” actually contains two types of microstructure that are not essentially the same in nature. There are obvious surface relief effect, the ferrite matrix has stripe-shaped subunits, the island-shaped composition was directional distribution; the other is not seen embossment, the ferrite matrix is massive, island-like composition was No rules distribution.