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首页> 外文期刊>Journal of Iron and Steel Research International >Bainite Transformation Under Continuous Cooling of Nb-Microalloyed Low Carbon Steel
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Bainite Transformation Under Continuous Cooling of Nb-Microalloyed Low Carbon Steel

机译：铌微合金低碳钢连续冷却下的贝氏体转变

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摘要

Utilizing Gleeble-1500 thermomechanical simulator, the influences of hot deformation parameters on continuous cooling bainite transformation in Nb-microalloyed low carbon steel were investigated. The results indicate that bainite starting temperature decreases with raising cooling rate and increases with increasing deformation temperature. Deformation has an accelerative effect on the bainite transformation when the specimens are deformed at 950 deg C. When the deformation temperature increases, the effect of deformation on bainite starting temperature is weakened. The amount of bainite is influenced by strain, cooling rate, and deformation temperature. When the specimens are deformed below 900 deg C , equiaxed ferrites are promoted and the bainite transformation is suppressed.
机译：利用Gleeble-1500热力学模拟器，研究了热变形参数对铌微合金化低碳钢连续贝氏体相变的影响。结果表明，贝氏体起始温度随冷却速率的增加而降低，随变形温度的升高而升高。当试样在950℃变形时，变形对贝氏体转变具有促进作用。当变形温度升高时，变形对贝氏体起始温度的影响减弱。贝氏体的数量受应变，冷却速率和变形温度的影响。当试样在900摄氏度以下变形时，等轴铁素体得到促进，贝氏体相变得到抑制。

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