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首页> 外文会议>Iron Steel Supplement 2005 vol.40: The Joint International Conference of HSLA Steels 2005 and ISUGS 2005 >Bainite Transformation under Continuous Cooling of Nb-microalloyed Steel
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Bainite Transformation under Continuous Cooling of Nb-microalloyed Steel

机译：铌微合金钢连续冷却下的贝氏体转变

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摘要

By 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 start temperature decreases with the raising of cooling rate and increases with the increasing deformation temperature. Deformation has an accelerated effect on the bainite transformation when the specimens were deformed at 950°C. When the deformation temperature increases, the effects of deformation on bainite start temperature diminished. The amount of bainite is influenced by strain, cooling rate and deformation temperature. When the specimens were deformed below 900°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升高而降低，随变形温度的升高而升高。当试样在950°C变形时，变形对贝氏体转变有加速作用。当变形温度升高时，变形对贝氏体起始温度的影响减小。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°C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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