| Modeling of γ→α Transformation Temperature Ar3 for High-Nb Pipeline Steel During Cooling Process |
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| 作者姓名： | LIU Yun-fei PENG Yan LIU Hong-min ZHANG Jian |
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| 作者单位： | [1]Engineering Research Center of Rolling Equipment and Complete Technology of Ministry of Education, Yanshan University, Qinhuangdao 066004, Hebei, China [2]State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, Hebei, China |
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| 基金项目： | Foundation Item：Item Sponsored by Fok Ying Tung Education Foundation of China （101048） ; Provincial Natural Science Foundation of Hebei Province of China （E2008000835） |
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| 摘 要： | According to the research on the deformation resistance and the ferrite transformation behavior of X80 pipeline steel by using Gleeble-3500 thermal simulator, a mathematical model of the α-phase start transformation temperature for high-Nb pipeline steel was established, based on the transformation kinetics and thermodynamics. The influence of deformation and cooling rate as well as Nb content on the α-phase starting temperature was thoroughly investigated. The results given by the model were in good agreement with the experimental results, which showed that the model could predict the α-phase starting temperature for high-Nb pipeline steel during cooling process.
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| 关 键 词： | X80管线钢 转化温度 冷却过程 Nb 抗变形能力 建模 数学模型 转变动力学 |
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