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对铁的γ→α多晶转变机理及转变动力学的研究导致人们研制出了含0.04～0.1%C 的低碳合金马氏体钢。这类钢经过适当的合金化以后其过冷奥氏体在奥氏体—铁素体转变温度区间具有很高的稳定性,不会发生中间转变(贝氏体转变),因此奥氏体化(或热变形)后空冷即可得到低碳马氏体组织。与普通结构钢相比较,这类钢由于含碳量相当
The research on the transformation mechanism and transformation kinetics of γ → α polycrystalline iron has led to the development of low-carbon alloy martensitic steel containing 0.04-0.1% C. This type of steel after proper alloying its supercooled austenite in the austenite - ferrite transition temperature range has a high stability, the intermediate transformation does not occur (bainite transformation), so the austenization (Or thermal deformation) air-cooled low-carbon martensite can be obtained. Compared with ordinary structural steel, this kind of steel due to the same carbon content